{
    "cdp_num": null,
    "comment": null,
    "conditions": [],
    "country": "Iceland",
    "country_code_ISO": "ISL",
    "date_from": "1992-08-07 00:00:00",
    "date_to": null,
    "description": null,
    "geological": {
        "bedrock": {
            "condition": "WEATHERED",
            "type": "IGNEOUS"
        },
        "characteristic": "BEDROCK",
        "distance_to_fault": null,
        "fault_zone": "TRUE",
        "fracture_spacing": null
    },
    "iers_domes": null,
    "instrument_collocation": [],
    "local_ties": [],
    "location": {
        "city": "Hamragar\u00f0ahei\u00f0i",
        "coordinates": {
            "X": 2670304.672,
            "Y": -971155.365,
            "Z": 5691284.232,
            "altitude": 160.4,
            "lat": 63.622448001599636,
            "lon": -19.985674009928104
        },
        "country": "Iceland",
        "country_iso_code": "ISL",
        "description": "",
        "state": "",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
    "logs": {
        "contact": "GNSS Operator (gnss-epos@vedur.is)",
        "date": "2026-09-05 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "HAMR00ISL.xml"
    },
    "marker": "HAMR",
    "monument": {
        "description": "STEEL QUADRIPOD",
        "foundation": "BEDROCK",
        "foundation_depth": null,
        "height": 1.037,
        "monument_inscription": null
    },
    "monument_num": 0,
    "name": "Hamragar\u00f0ahei\u00f0i",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "IMO",
                    "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                    "infos": "",
                    "name": "Icelandic Meteorological Office",
                    "www": "https:\/\/en.vedur.is\/"
                },
                "comment": "",
                "email": "gnss-epos@vedur.is",
                "name": "GNSS Operator",
                "phone": "",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "IMO",
                    "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                    "infos": "",
                    "name": "Icelandic Meteorological Office",
                    "www": "https:\/\/en.vedur.is\/"
                },
                "comment": "",
                "email": "gnss-epos@vedur.is",
                "name": "GNSS Operator",
                "phone": "",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1992-08-07 00:00:00",
                "date_to": "1992-08-17 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000ST"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2459"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 4.64 \/ SP 1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1993-06-13 00:00:00",
                "date_to": "1993-06-16 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000ST"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3146A02443"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 4.64 \/ SP 1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1994-06-03 00:00:00",
                "date_to": "1994-06-07 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000ST"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2459"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 4.83 \/ SP 1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1994-09-19 00:00:00",
                "date_to": "1994-09-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000ST"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2443"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 4.83 \/ SP 1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1995-08-29 00:00:00",
                "date_to": "1995-08-30 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1246"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 5.60 \/ SP 1.23"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1995-09-01 00:00:00",
                "date_to": "1995-09-03 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1423"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 6.12 \/ SP 2.12"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1998-07-02 00:00:00",
                "date_to": "1998-07-08 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000ST"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2443"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 4.83 \/ SP 1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-07-18 00:00:00",
                "date_to": "1999-07-24 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000ST"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "000000"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 4.83 \/ SP 1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-08-15 00:00:00",
                "date_to": "1999-08-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "25992"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-09-10 00:00:00",
                "date_to": "1999-09-14 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1247"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-09-29 00:00:00",
                "date_to": "1999-10-05 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "26093"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-11-07 00:00:00",
                "date_to": "1999-11-28 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000ST"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "000000"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.83 \/ 1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-01-30 00:00:00",
                "date_to": "2000-02-04 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "26093"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-03-25 00:00:00",
                "date_to": "2000-04-03 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "26093"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-06-18 00:00:00",
                "date_to": "2000-06-23 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "26093"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-07-06 00:00:00",
                "date_to": "2000-07-09 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "26093"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-03-26 00:00:00",
                "date_to": "2001-04-02 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "26093"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-06-04 00:00:00",
                "date_to": "2001-06-20 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "16307"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.19 \/ SP 3.04"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-08-06 00:00:00",
                "date_to": "2001-08-14 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "15412"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.19 \/ SP 3.04"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-08-16 00:00:00",
                "date_to": "2001-08-18 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "25148"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-05-20 00:00:00",
                "date_to": "2002-05-27 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "25992"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.19 \/ SP 3.04"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-10-01 00:00:00",
                "date_to": "2002-10-05 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "25992"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.29"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-02-23 00:00:00",
                "date_to": "2003-03-11 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "26094"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-06-17 00:00:00",
                "date_to": "2003-07-04 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "26094"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.29 \/ SP 3.07"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-09-15 00:00:00",
                "date_to": "2003-09-19 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "02898"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.29"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-01-26 00:00:00",
                "date_to": "2004-01-31 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "28516"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.29"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-02-03 00:00:00",
                "date_to": "2004-02-10 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "28516"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.29"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-05-18 00:00:00",
                "date_to": "2004-05-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "25992"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 7.19 \/ SP 3.04"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-06-13 00:00:00",
                "date_to": "2004-06-19 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "28516"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.29"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-10 18:00:00",
                "date_to": "2004-08-12 08:35:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 5700"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0440100676"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 2.01 \/ SP 2.01"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-02-16 00:00:00",
                "date_to": "2005-02-23 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 4000SSI"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "28516"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.29"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-04-22 00:00:00",
                "date_to": "2005-05-06 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 5700"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0220320630"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.30"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-03-12 00:00:00",
                "date_to": "2006-03-18 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 5700"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0220353761"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NP 2.26 \/ SP 2.26"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-06-19 00:00:00",
                "date_to": "2009-06-14 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2009-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2009-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4539258393"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2009-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2009-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2009-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2009-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-06-14 00:00:00",
                "date_to": "2009-07-30 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2009-06-14 00:00:00",
                        "date_to": "2009-07-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-06-14 00:00:00",
                        "date_to": "2009-07-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4720132685"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2009-06-14 00:00:00",
                        "date_to": "2009-07-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2009-06-14 00:00:00",
                        "date_to": "2009-07-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.1-3"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2009-06-14 00:00:00",
                        "date_to": "2009-07-30 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2009-06-14 00:00:00",
                        "date_to": "2009-07-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-09-17 00:00:00",
                "date_to": "2010-05-09 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2009-09-17 00:00:00",
                        "date_to": "2010-05-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-09-17 00:00:00",
                        "date_to": "2010-05-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4811148299"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2009-09-17 00:00:00",
                        "date_to": "2010-05-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2009-09-17 00:00:00",
                        "date_to": "2010-05-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.15"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2009-09-17 00:00:00",
                        "date_to": "2010-05-09 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2009-09-17 00:00:00",
                        "date_to": "2010-05-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-06-09 00:00:00",
                "date_to": "2010-12-10 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-06-09 00:00:00",
                        "date_to": "2010-12-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 5700"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-06-09 00:00:00",
                        "date_to": "2010-12-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0220331856"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-06-09 00:00:00",
                        "date_to": "2010-12-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-06-09 00:00:00",
                        "date_to": "2010-12-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.01"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-06-09 00:00:00",
                        "date_to": "2010-12-10 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-06-09 00:00:00",
                        "date_to": "2010-12-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-12-10 00:00:00",
                "date_to": "2010-12-10 12:20:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-12-10 00:00:00",
                        "date_to": "2010-12-10 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE 5700"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-12-10 00:00:00",
                        "date_to": "2010-12-10 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0220331856"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-12-10 00:00:00",
                        "date_to": "2010-12-10 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-12-10 00:00:00",
                        "date_to": "2010-12-10 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.01"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-12-10 00:00:00",
                        "date_to": "2010-12-10 12:20:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-12-10 00:00:00",
                        "date_to": "2010-12-10 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-12-10 12:20:00",
                "date_to": "2012-05-24 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-12-10 12:20:00",
                        "date_to": "2012-05-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-12-10 12:20:00",
                        "date_to": "2012-05-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4921172756"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-12-10 12:20:00",
                        "date_to": "2012-05-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-12-10 12:20:00",
                        "date_to": "2012-05-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.25"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-12-10 12:20:00",
                        "date_to": "2012-05-24 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-12-10 12:20:00",
                        "date_to": "2012-05-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-12-18 19:00:00",
                "date_to": "2015-08-26 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2012-12-18 19:00:00",
                        "date_to": "2015-08-26 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-12-18 19:00:00",
                        "date_to": "2015-08-26 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4751143348"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2012-12-18 19:00:00",
                        "date_to": "2015-08-26 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2012-12-18 19:00:00",
                        "date_to": "2015-08-26 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.3-0"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2012-12-18 19:00:00",
                        "date_to": "2015-08-26 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2012-12-18 19:00:00",
                        "date_to": "2015-08-26 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2015-08-26 00:00:00",
                "date_to": "2015-08-26 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2015-08-26 00:00:00",
                        "date_to": "2015-08-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2015-08-26 00:00:00",
                        "date_to": "2015-08-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4751143348"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2015-08-26 00:00:00",
                        "date_to": "2015-08-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2015-08-26 00:00:00",
                        "date_to": "2015-08-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.3-0"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2015-08-26 00:00:00",
                        "date_to": "2015-08-26 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2015-08-26 00:00:00",
                        "date_to": "2015-08-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2015-08-26 12:00:00",
                "date_to": "2016-09-23 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2015-08-26 12:00:00",
                        "date_to": "2016-09-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2015-08-26 12:00:00",
                        "date_to": "2016-09-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4635120794"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2015-08-26 12:00:00",
                        "date_to": "2016-09-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2015-08-26 12:00:00",
                        "date_to": "2016-09-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.2-0"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2015-08-26 12:00:00",
                        "date_to": "2016-09-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2015-08-26 12:00:00",
                        "date_to": "2016-09-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2016-09-23 00:00:00",
                "date_to": "2016-09-23 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2016-09-23 00:00:00",
                        "date_to": "2016-09-23 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2016-09-23 00:00:00",
                        "date_to": "2016-09-23 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4635120794"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2016-09-23 00:00:00",
                        "date_to": "2016-09-23 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2016-09-23 00:00:00",
                        "date_to": "2016-09-23 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.2-0"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2016-09-23 00:00:00",
                        "date_to": "2016-09-23 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2016-09-23 00:00:00",
                        "date_to": "2016-09-23 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2016-09-23 12:00:00",
                "date_to": "2023-09-29 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2016-09-23 12:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2016-09-23 12:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4752143429"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2016-09-23 12:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2016-09-23 12:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.3-2"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2016-09-23 12:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2016-09-23 12:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2023-09-29 00:00:00",
                "date_to": "2023-09-29 15:20:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2023-09-29 00:00:00",
                        "date_to": "2023-09-29 15:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2023-09-29 00:00:00",
                        "date_to": "2023-09-29 15:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4752143429"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2023-09-29 00:00:00",
                        "date_to": "2023-09-29 15:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2023-09-29 00:00:00",
                        "date_to": "2023-09-29 15:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.3-2"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2023-09-29 00:00:00",
                        "date_to": "2023-09-29 15:20:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2023-09-29 00:00:00",
                        "date_to": "2023-09-29 15:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1992-08-07 00:00:00",
                "date_to": "1992-08-17 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "047011"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.0673,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0024,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0009,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1992-08-07 00:00:00",
                "date_to": "1992-08-17 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1992-08-07 00:00:00",
                        "date_to": "1992-08-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1993-06-13 00:00:00",
                "date_to": "1993-06-16 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4203"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.8353,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0024,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0009,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1993-06-13 00:00:00",
                "date_to": "1993-06-16 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1993-06-13 00:00:00",
                        "date_to": "1993-06-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1994-06-03 00:00:00",
                "date_to": "1994-06-07 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.03,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0024,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0009,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1994-06-03 00:00:00",
                "date_to": "1994-06-07 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1994-06-03 00:00:00",
                        "date_to": "1994-06-07 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1994-09-19 00:00:00",
                "date_to": "1994-09-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9649,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0024,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0009,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1994-09-19 00:00:00",
                "date_to": "1994-09-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1994-09-19 00:00:00",
                        "date_to": "1994-09-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1995-08-29 00:00:00",
                "date_to": "1995-08-30 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "268000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.3692,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0023,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1995-08-29 00:00:00",
                "date_to": "1995-08-30 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1995-08-29 00:00:00",
                        "date_to": "1995-08-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1995-09-01 00:00:00",
                "date_to": "1995-09-01 16:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4268"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": 0.9362,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": -0.0023,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": -0.001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1995-09-01 00:00:00",
                "date_to": "1995-09-01 16:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1995-09-01 00:00:00",
                        "date_to": "1995-09-01 16:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1995-09-01 16:30:00",
                "date_to": "1995-09-03 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "64268"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9362,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0023,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1995-09-01 16:30:00",
                "date_to": "1995-09-03 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1995-09-01 16:30:00",
                        "date_to": "1995-09-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1998-07-02 00:00:00",
                "date_to": "1998-07-08 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9095,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0023,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0009,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1998-07-02 00:00:00",
                "date_to": "1998-07-08 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1998-07-02 00:00:00",
                        "date_to": "1998-07-08 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-07-18 00:00:00",
                "date_to": "1999-07-24 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.8435,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0023,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0009,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-07-18 00:00:00",
                "date_to": "1999-07-24 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-07-18 00:00:00",
                        "date_to": "1999-07-24 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-08-15 00:00:00",
                "date_to": "1999-08-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9781,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-08-15 00:00:00",
                "date_to": "1999-08-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-08-15 00:00:00",
                        "date_to": "1999-08-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-09-10 00:00:00",
                "date_to": "1999-09-13 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.1794,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0022,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-09-10 00:00:00",
                "date_to": "1999-09-13 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-09-10 00:00:00",
                        "date_to": "1999-09-13 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-09-13 00:00:00",
                "date_to": "1999-09-14 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM14532.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.1794,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0022,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-09-13 00:00:00",
                "date_to": "1999-09-14 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-09-13 00:00:00",
                        "date_to": "1999-09-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-09-29 00:00:00",
                "date_to": "1999-10-05 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.8579,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-09-29 00:00:00",
                "date_to": "1999-10-05 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-09-29 00:00:00",
                        "date_to": "1999-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-11-07 00:00:00",
                "date_to": "1999-11-28 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9124,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-11-07 00:00:00",
                "date_to": "1999-11-28 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-11-07 00:00:00",
                        "date_to": "1999-11-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-01-30 00:00:00",
                "date_to": "2000-02-04 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "168784"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.8537,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-01-30 00:00:00",
                "date_to": "2000-02-04 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-01-30 00:00:00",
                        "date_to": "2000-02-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-03-25 00:00:00",
                "date_to": "2000-04-03 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "171774"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.8573,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-03-25 00:00:00",
                "date_to": "2000-04-03 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-03-25 00:00:00",
                        "date_to": "2000-04-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-06-18 00:00:00",
                "date_to": "2000-06-23 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "168784"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9021,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-06-18 00:00:00",
                "date_to": "2000-06-23 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-06-18 00:00:00",
                        "date_to": "2000-06-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-07-06 00:00:00",
                "date_to": "2000-07-09 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "168784"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9442,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2000-07-06 00:00:00",
                "date_to": "2000-07-09 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2000-07-06 00:00:00",
                        "date_to": "2000-07-09 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-03-26 00:00:00",
                "date_to": "2001-04-02 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "171774"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.8573,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-03-26 00:00:00",
                "date_to": "2001-04-02 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-03-26 00:00:00",
                        "date_to": "2001-04-02 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-06-04 00:00:00",
                "date_to": "2001-06-20 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM29659.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "061146"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9094,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0002,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-06-04 00:00:00",
                "date_to": "2001-06-20 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-06-04 00:00:00",
                        "date_to": "2001-06-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-08-06 00:00:00",
                "date_to": "2001-08-14 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM29659.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "061146"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.913,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0002,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-08-06 00:00:00",
                "date_to": "2001-08-14 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-08-06 00:00:00",
                        "date_to": "2001-08-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-08-16 00:00:00",
                "date_to": "2001-08-18 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.00+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0220156516"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.1445,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0003,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-08-16 00:00:00",
                "date_to": "2001-08-18 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2001-08-16 00:00:00",
                        "date_to": "2001-08-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-05-20 00:00:00",
                "date_to": "2002-05-27 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "171774"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9361,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-05-20 00:00:00",
                "date_to": "2002-05-27 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-05-20 00:00:00",
                        "date_to": "2002-05-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-10-01 00:00:00",
                "date_to": "2002-10-05 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "156024"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9278,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-10-01 00:00:00",
                "date_to": "2002-10-05 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-10-01 00:00:00",
                        "date_to": "2002-10-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-02-23 00:00:00",
                "date_to": "2003-03-11 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "168784"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9077,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-02-23 00:00:00",
                "date_to": "2003-03-11 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-02-23 00:00:00",
                        "date_to": "2003-03-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-06-17 00:00:00",
                "date_to": "2003-07-04 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "56024"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.954,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-06-17 00:00:00",
                "date_to": "2003-07-04 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-06-17 00:00:00",
                        "date_to": "2003-07-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-09-15 00:00:00",
                "date_to": "2003-09-19 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.00+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "156370"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9574,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0003,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2003-09-15 00:00:00",
                "date_to": "2003-09-19 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2003-09-15 00:00:00",
                        "date_to": "2003-09-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-01-26 00:00:00",
                "date_to": "2004-01-31 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "221333"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.0047,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-01-26 00:00:00",
                "date_to": "2004-01-31 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-01-26 00:00:00",
                        "date_to": "2004-01-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-02-03 00:00:00",
                "date_to": "2004-02-10 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "168784"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9709,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-02-03 00:00:00",
                "date_to": "2004-02-10 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-02-03 00:00:00",
                        "date_to": "2004-02-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-05-18 00:00:00",
                "date_to": "2004-05-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.00+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "156516"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9161,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0003,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-05-18 00:00:00",
                "date_to": "2004-05-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-05-18 00:00:00",
                        "date_to": "2004-05-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-06-13 00:00:00",
                "date_to": "2004-06-19 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.00+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "156111"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.9422,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0003,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-06-13 00:00:00",
                "date_to": "2004-06-19 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-06-13 00:00:00",
                        "date_to": "2004-06-19 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-10 18:00:00",
                "date_to": "2004-08-11 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "12471454"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.3,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-10 18:00:00",
                "date_to": "2004-08-11 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-10 18:00:00",
                        "date_to": "2004-08-11 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-11 00:00:00",
                "date_to": "2004-08-11 13:14:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "12471454"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": 1.3,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": -0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-11 00:00:00",
                "date_to": "2004-08-11 13:14:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-11 00:00:00",
                        "date_to": "2004-08-11 13:14:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-11 13:14:00",
                "date_to": "2004-08-12 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "12471454"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.3267,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-11 13:14:00",
                "date_to": "2004-08-12 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-11 13:14:00",
                        "date_to": "2004-08-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-12 00:00:00",
                "date_to": "2004-08-12 08:35:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "12471454"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": 1.3267,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": -0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-08-12 00:00:00",
                "date_to": "2004-08-12 08:35:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-08-12 00:00:00",
                        "date_to": "2004-08-12 08:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-02-16 00:00:00",
                "date_to": "2005-02-23 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM33429.20+GP"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "168784"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.037,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0004,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-02-16 00:00:00",
                "date_to": "2005-02-23 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-02-16 00:00:00",
                        "date_to": "2005-02-23 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-04-22 00:00:00",
                "date_to": "2005-05-06 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "12561457"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.037,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": -0.0001,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-04-22 00:00:00",
                "date_to": "2005-05-06 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-04-22 00:00:00",
                        "date_to": "2005-05-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-03-12 00:00:00",
                "date_to": "2006-03-18 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.037,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-03-12 00:00:00",
                "date_to": "2006-03-18 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-03-12 00:00:00",
                        "date_to": "2006-03-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-06-19 00:00:00",
                "date_to": "2012-07-03 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.037,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-06-19 00:00:00",
                "date_to": "2012-07-03 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-06-19 00:00:00",
                        "date_to": "2012-07-03 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-07-03 00:00:00",
                "date_to": "2012-07-28 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "12513237"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.037,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-07-03 00:00:00",
                "date_to": "2012-07-28 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-07-03 00:00:00",
                        "date_to": "2012-07-28 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-07-28 00:00:00",
                "date_to": "2023-09-29 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "0000"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": 1.037,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IMO",
                        "address": "B\u00fasta\u00f0arvegur 7-9 \/ -\n105 Reykjavik\nIceland",
                        "infos": "",
                        "name": "Icelandic Meteorological Office",
                        "www": "https:\/\/en.vedur.is\/"
                    },
                    "comment": "",
                    "email": "gnss-epos@vedur.is",
                    "name": "GNSS Operator",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-07-28 00:00:00",
                "date_to": "2023-09-29 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-07-28 00:00:00",
                        "date_to": "2023-09-29 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        }
    ],
    "station_networks": [
        {
            "name": "EPOS"
        }
    ],
    "station_type": "GNSS Continuous"
}