{
    "cdp_num": null,
    "comment": "IERS DOMES Number added on 2003-02-06.",
    "conditions": [],
    "country": "Belgium",
    "country_code_ISO": "BEL",
    "date_from": "1997-06-17 00:00:00",
    "date_to": null,
    "description": "BRASS NAIL",
    "geological": {
        "bedrock": {
            "condition": "FRESH",
            "type": "SEDIMENTARY"
        },
        "characteristic": "SAND",
        "distance_to_fault": null,
        "fault_zone": "YES\/Roer Graben",
        "fracture_spacing": null
    },
    "iers_domes": "13116M001",
    "instrument_collocation": [
        {
            "comment": "981148901.6+\/-1.436 \u00b5Gal",
            "date_from": "1999-02-23 00:00:00",
            "date_to": "1999-02-24 00:00:00",
            "status": "MOBILE",
            "type": "ABSOLUTE GRAVITY"
        }
    ],
    "local_ties": [],
    "location": {
        "city": "Meeuwen",
        "coordinates": {
            "X": 3994101.138,
            "Y": 388519.864,
            "Z": 4941032.636,
            "altitude": 117.4,
            "lat": 51.10577000899529,
            "lon": 5.555876781778424
        },
        "country": "Belgium",
        "country_iso_code": "BEL",
        "description": "",
        "state": "Limburg",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
    "logs": {
        "contact": "GNSSatROB (gnss@oma.be)",
        "date": "2023-03-10 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "MEEU00BEL.xml"
    },
    "marker": "MEEU",
    "monument": {
        "description": "STEEL MAST",
        "foundation": "CONCRETE BLOCK",
        "foundation_depth": 1,
        "height": 5,
        "monument_inscription": null
    },
    "monument_num": 0,
    "name": "Meeuwen",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "ROB",
                    "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                    "infos": "",
                    "name": "Royal Observatory of Belgium",
                    "www": ""
                },
                "comment": "",
                "email": "gnss@oma.be",
                "name": "GNSSatROB",
                "phone": "",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "ROB",
                    "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                    "infos": "",
                    "name": "Royal Observatory of Belgium",
                    "www": ""
                },
                "comment": "",
                "email": "gnss@oma.be",
                "name": "GNSSatROB",
                "phone": "",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1997-06-17 00:00:00",
                "date_to": "1999-06-10 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "1999-06-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ROGUE SNR-8000"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "1999-06-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "T-412"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "1999-06-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "1999-06-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3.2.32.1"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "1999-06-10 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "1999-06-10 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-06-10 00:00:00",
                "date_to": "2002-02-28 13:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1999-06-10 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ROGUE SNR-8000"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-06-10 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "T-412"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1999-06-10 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1999-06-10 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3.2.32.9"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1999-06-10 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1999-06-10 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "- Up to 2003-02-02 the firmware was\r\nincorrelty named UF00\r\n- 2003-03-18T08:20Z Deactivation of smoothing\r\nin conversion from raw data to RINEX\r\n(XYZAshRx program) on request of IGS CB\r\n- No data from 2003-09-24 to 2004-01-15.\r\nReceiver had to be repaired.",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-02-28 14:00:00",
                "date_to": "2004-03-11 10:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2004-03-11 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ASHTECH UZ-12"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2004-03-11 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ZR220013841"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2004-03-11 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2004-03-11 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "CJ00-OA16"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2004-03-11 10:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2004-03-11 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-03-11 11:45:00",
                "date_to": "2004-07-22 09:20:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2004-03-11 11:45:00",
                        "date_to": "2004-07-22 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ASHTECH UZ-12"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-03-11 11:45:00",
                        "date_to": "2004-07-22 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ZR220013822"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2004-03-11 11:45:00",
                        "date_to": "2004-07-22 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2004-03-11 11:45:00",
                        "date_to": "2004-07-22 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "CJ00-OA16"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2004-03-11 11:45:00",
                        "date_to": "2004-07-22 09:20:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2004-03-11 11:45:00",
                        "date_to": "2004-07-22 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2004-07-22 09:30:00",
                "date_to": "2005-12-15 09:15:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2004-07-22 09:30:00",
                        "date_to": "2005-12-15 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ASHTECH UZ-12"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2004-07-22 09:30:00",
                        "date_to": "2005-12-15 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "UX219994206"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2004-07-22 09:30:00",
                        "date_to": "2005-12-15 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2004-07-22 09:30:00",
                        "date_to": "2005-12-15 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ZC00-OA13"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2004-07-22 09:30:00",
                        "date_to": "2005-12-15 09:15:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2004-07-22 09:30:00",
                        "date_to": "2005-12-15 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-12-15 09:30:00",
                "date_to": "2008-01-24 10:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2005-12-15 09:30:00",
                        "date_to": "2008-01-24 10:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ASHTECH UZ-12"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-12-15 09:30:00",
                        "date_to": "2008-01-24 10:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ZR220013841"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2005-12-15 09:30:00",
                        "date_to": "2008-01-24 10:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2005-12-15 09:30:00",
                        "date_to": "2008-01-24 10:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "CQ00-1A01"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2005-12-15 09:30:00",
                        "date_to": "2008-01-24 10:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2005-12-15 09:30:00",
                        "date_to": "2008-01-24 10:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-01-24 11:00:00",
                "date_to": "2008-05-05 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2008-01-24 11:00:00",
                        "date_to": "2008-05-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX2E"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-01-24 11:00:00",
                        "date_to": "2008-05-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3480"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2008-01-24 11:00:00",
                        "date_to": "2008-05-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2008-01-24 11:00:00",
                        "date_to": "2008-05-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3.2.0"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2008-01-24 11:00:00",
                        "date_to": "2008-05-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2008-01-24 11:00:00",
                        "date_to": "2008-05-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-05-05 00:00:00",
                "date_to": "2009-03-24 09:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2008-05-05 00:00:00",
                        "date_to": "2009-03-24 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX2E"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-05-05 00:00:00",
                        "date_to": "2009-03-24 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3480"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2008-05-05 00:00:00",
                        "date_to": "2009-03-24 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2008-05-05 00:00:00",
                        "date_to": "2009-03-24 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3.2.0-patch1"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2008-05-05 00:00:00",
                        "date_to": "2009-03-24 09:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2008-05-05 00:00:00",
                        "date_to": "2009-03-24 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-03-24 09:10:00",
                "date_to": "2014-10-06 09:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2009-03-24 09:10:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX2E"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-03-24 09:10:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3480"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2009-03-24 09:10:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2009-03-24 09:10:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3.2-devtst"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2009-03-24 09:10:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2009-03-24 09:10:00",
                        "date_to": "2014-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-06 10:00:00",
                "date_to": "2015-09-17 10:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2014-10-06 10:00:00",
                        "date_to": "2015-09-17 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX4"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2014-10-06 10:00:00",
                        "date_to": "2015-09-17 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3001146"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2014-10-06 10:00:00",
                        "date_to": "2015-09-17 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2014-10-06 10:00:00",
                        "date_to": "2015-09-17 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.5-tst140430r40977"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2014-10-06 10:00:00",
                        "date_to": "2015-09-17 10:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2014-10-06 10:00:00",
                        "date_to": "2015-09-17 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2015-09-17 10:00:00",
                "date_to": "2016-12-06 09:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2015-09-17 10:00:00",
                        "date_to": "2016-12-06 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX4"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2015-09-17 10:00:00",
                        "date_to": "2016-12-06 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3001146"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2015-09-17 10:00:00",
                        "date_to": "2016-12-06 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2015-09-17 10:00:00",
                        "date_to": "2016-12-06 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.9"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2015-09-17 10:00:00",
                        "date_to": "2016-12-06 09:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2015-09-17 10:00:00",
                        "date_to": "2016-12-06 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2016-12-06 10:00:00",
                "date_to": "2017-04-18 10:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2016-12-06 10:00:00",
                        "date_to": "2017-04-18 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX4"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2016-12-06 10:00:00",
                        "date_to": "2017-04-18 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3001146"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2016-12-06 10:00:00",
                        "date_to": "2017-04-18 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2016-12-06 10:00:00",
                        "date_to": "2017-04-18 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.9.5"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2016-12-06 10:00:00",
                        "date_to": "2017-04-18 10:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2016-12-06 10:00:00",
                        "date_to": "2017-04-18 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2017-04-18 10:00:00",
                "date_to": "2017-09-19 10:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2017-04-18 10:00:00",
                        "date_to": "2017-09-19 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX4"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2017-04-18 10:00:00",
                        "date_to": "2017-09-19 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3001146"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2017-04-18 10:00:00",
                        "date_to": "2017-09-19 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2017-04-18 10:00:00",
                        "date_to": "2017-09-19 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.9.5"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2017-04-18 10:00:00",
                        "date_to": "2017-09-19 10:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2017-04-18 10:00:00",
                        "date_to": "2017-09-19 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-03-30 09:00:00",
                "date_to": "2018-11-12 09:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-03-30 09:00:00",
                        "date_to": "2018-11-12 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX4"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-03-30 09:00:00",
                        "date_to": "2018-11-12 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3009592"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-03-30 09:00:00",
                        "date_to": "2018-11-12 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-03-30 09:00:00",
                        "date_to": "2018-11-12 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.9.6"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-03-30 09:00:00",
                        "date_to": "2018-11-12 09:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-03-30 09:00:00",
                        "date_to": "2018-11-12 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-11-12 09:30:00",
                "date_to": "2020-08-03 08:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-11-12 09:30:00",
                        "date_to": "2020-08-03 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX4"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-11-12 09:30:00",
                        "date_to": "2020-08-03 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3009592"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-11-12 09:30:00",
                        "date_to": "2020-08-03 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-11-12 09:30:00",
                        "date_to": "2020-08-03 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.9.6-patch2"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-11-12 09:30:00",
                        "date_to": "2020-08-03 08:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-11-12 09:30:00",
                        "date_to": "2020-08-03 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1997-06-17 00:00:00",
                "date_to": "2002-02-28 13:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "AOAD\/M_T"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "329"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": 1.274,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "RGB233"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": 23,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1997-06-17 00:00:00",
                "date_to": "2002-02-28 13:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": "2002-02-28 13:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-02-28 14:00:00",
                "date_to": "2015-09-17 09:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ASH701945C_M"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "CR620015107"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": 1.3831,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "RGB233"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": 23,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2002-02-28 14:00:00",
                "date_to": "2015-09-17 09:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2002-02-28 14:00:00",
                        "date_to": "2015-09-17 09:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2015-09-17 09:30:00",
                "date_to": "2018-10-05 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM59800.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5116354146"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": 1.288,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "RGB233"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": 23,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2015-09-17 09:30:00",
                "date_to": "2018-10-05 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2015-09-17 09:30:00",
                        "date_to": "2018-10-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": "Ouside - Huber+Suhner SPUMA 240, 23m\r\nInside - RG 400\/U, 3m",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-10-05 13:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM59800.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5116354146"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 1.288,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "H+S Spuma 240 and RG214\/U"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 26,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": "Ouside - Huber+Suhner SPUMA 240, 23m\r\nInside - RG 400\/U, 3m",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-10-05 13:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-10-05 13:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ROB",
                        "address": "Av. Circulaire 3\n1180 Brussels\nBelgium",
                        "infos": "",
                        "name": "Royal Observatory of Belgium",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@oma.be",
                    "name": "GNSSatROB",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1997-06-17 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "INTERNAL"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
                        },
                        "date_from": "1997-06-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
                }
            }
        }
    ],
    "station_networks": [
        {
            "name": "ROB_GNSS"
        }
    ],
    "station_type": "GNSS Continuous"
}