{
    "cdp_num": "none",
    "comment": null,
    "conditions": [],
    "country": "Austria",
    "country_code_ISO": "AUT",
    "date_from": "2006-03-23 13:00:00",
    "date_to": null,
    "description": "Tubular steel mast",
    "geological": {
        "bedrock": {
            "condition": null,
            "type": null
        },
        "characteristic": null,
        "distance_to_fault": null,
        "fault_zone": null,
        "fracture_spacing": null
    },
    "iers_domes": "11068M001",
    "instrument_collocation": [],
    "local_ties": [
        {
            "accuracy": 5,
            "comment": "Op. St\/2006 Aufl. 8",
            "cpd_num": null,
            "date_at": null,
            "dx": 18.553,
            "dy": -167.291,
            "dz": 44.496,
            "iers_domes": null,
            "name": "T0160-160B1",
            "survey_method": "TRIANGULATION + Distance",
            "usage": "LOCAL CONTROL"
        }
    ],
    "location": {
        "city": "Poels",
        "coordinates": {
            "X": 4200550.943,
            "Y": 1092466.518,
            "Z": 4659094.414,
            "altitude": 855.7,
            "lat": 47.22073635946225,
            "lon": 14.578346376927598
        },
        "country": "Austria",
        "country_iso_code": "AUT",
        "description": "Amon_08",
        "state": "Styria",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
    "logs": {
        "contact": "apos.admin@bev.gv.at",
        "date": "2025-09-16 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "POEL00AUT.xml"
    },
    "marker": "POEL",
    "monument": {
        "description": "Tubular steel mast fixed on concrete ceiling",
        "foundation": "",
        "foundation_depth": null,
        "height": null,
        "monument_inscription": "T0160-160L1 national TP number"
    },
    "monument_num": 0,
    "name": "Poels",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "BEV",
                    "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                    "infos": "",
                    "name": "Federal Office of Metrology and Surveying Austria",
                    "www": ""
                },
                "comment": "",
                "email": "apos.admin@bev.gv.at",
                "name": "APOS - Austrian Positioning Service",
                "phone": "+43 676 82101111",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "BEV",
                    "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                    "infos": "",
                    "name": "Federal Office of Metrology and Surveying Austria",
                    "www": ""
                },
                "comment": "",
                "email": "apos.admin@bev.gv.at",
                "name": "APOS - Austrian Positioning Service",
                "phone": "+43 676 82101111",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-03-23 13:00:00",
                "date_to": "2006-03-27 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2006-03-27 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2006-03-27 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4445240369"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2006-03-27 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2006-03-27 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "Nav1.11"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2006-03-27 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2006-03-27 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-03-27 12:20:00",
                "date_to": "2010-04-13 11:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2006-03-27 12:20:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE NETRS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-03-27 12:20:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4445240369"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2006-03-27 12:20:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2006-03-27 12:20:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "Nav 1.15 \/ Boot 1.12"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2006-03-27 12:20:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2006-03-27 12:20:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-04-13 11:30:00",
                "date_to": "2010-09-06 15:45:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": "2010-09-06 15:45:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": "2010-09-06 15:45:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": "2010-09-06 15:45:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": "2010-09-06 15:45:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.80 \/ 4.004"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": "2010-09-06 15:45:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": "2010-09-06 15:45:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-09-06 15:45:00",
                "date_to": "2010-10-28 12:20:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-09-06 15:45:00",
                        "date_to": "2010-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-09-06 15:45:00",
                        "date_to": "2010-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-09-06 15:45:00",
                        "date_to": "2010-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-09-06 15:45:00",
                        "date_to": "2010-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.00 \/ 4.005"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-09-06 15:45:00",
                        "date_to": "2010-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-09-06 15:45:00",
                        "date_to": "2010-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-10-28 12:35:00",
                "date_to": "2010-11-17 13:50:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-10-28 12:35:00",
                        "date_to": "2010-11-17 13:50:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-10-28 12:35:00",
                        "date_to": "2010-11-17 13:50:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-10-28 12:35:00",
                        "date_to": "2010-11-17 13:50:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-10-28 12:35:00",
                        "date_to": "2010-11-17 13:50:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.00 \/ 4.007"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-10-28 12:35:00",
                        "date_to": "2010-11-17 13:50:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-10-28 12:35:00",
                        "date_to": "2010-11-17 13:50:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-11-17 13:50:00",
                "date_to": "2011-03-28 12:17:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-11-17 13:50:00",
                        "date_to": "2011-03-28 12:17:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-11-17 13:50:00",
                        "date_to": "2011-03-28 12:17:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-11-17 13:50:00",
                        "date_to": "2011-03-28 12:17:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-11-17 13:50:00",
                        "date_to": "2011-03-28 12:17:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.01 \/ 4.007"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-11-17 13:50:00",
                        "date_to": "2011-03-28 12:17:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-11-17 13:50:00",
                        "date_to": "2011-03-28 12:17:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2011-03-28 12:24:00",
                "date_to": "2011-06-22 08:09:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2011-03-28 12:24:00",
                        "date_to": "2011-06-22 08:09:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2011-03-28 12:24:00",
                        "date_to": "2011-06-22 08:09:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2011-03-28 12:24:00",
                        "date_to": "2011-06-22 08:09:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2011-03-28 12:24:00",
                        "date_to": "2011-06-22 08:09:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.10 \/ 4.007"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2011-03-28 12:24:00",
                        "date_to": "2011-06-22 08:09:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2011-03-28 12:24:00",
                        "date_to": "2011-06-22 08:09:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2011-06-22 08:16:00",
                "date_to": "2012-01-31 14:37:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2011-06-22 08:16:00",
                        "date_to": "2012-01-31 14:37:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2011-06-22 08:16:00",
                        "date_to": "2012-01-31 14:37:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2011-06-22 08:16:00",
                        "date_to": "2012-01-31 14:37:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2011-06-22 08:16:00",
                        "date_to": "2012-01-31 14:37:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.20 \/ 4.007"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2011-06-22 08:16:00",
                        "date_to": "2012-01-31 14:37:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2011-06-22 08:16:00",
                        "date_to": "2012-01-31 14:37:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-01-31 14:56:00",
                "date_to": "2012-02-29 13:32:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2012-01-31 14:56:00",
                        "date_to": "2012-02-29 13:32:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-01-31 14:56:00",
                        "date_to": "2012-02-29 13:32:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2012-01-31 14:56:00",
                        "date_to": "2012-02-29 13:32:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2012-01-31 14:56:00",
                        "date_to": "2012-02-29 13:32:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.50 \/ 6.110"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2012-01-31 14:56:00",
                        "date_to": "2012-02-29 13:32:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2012-01-31 14:56:00",
                        "date_to": "2012-02-29 13:32:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-02-29 13:44:00",
                "date_to": "2012-03-27 07:47:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2012-02-29 13:44:00",
                        "date_to": "2012-03-27 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-02-29 13:44:00",
                        "date_to": "2012-03-27 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2012-02-29 13:44:00",
                        "date_to": "2012-03-27 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2012-02-29 13:44:00",
                        "date_to": "2012-03-27 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.20 \/ 6.110"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2012-02-29 13:44:00",
                        "date_to": "2012-03-27 07:47:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2012-02-29 13:44:00",
                        "date_to": "2012-03-27 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-03-27 07:54:00",
                "date_to": "2013-02-19 10:08:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2012-03-27 07:54:00",
                        "date_to": "2013-02-19 10:08:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-03-27 07:54:00",
                        "date_to": "2013-02-19 10:08:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2012-03-27 07:54:00",
                        "date_to": "2013-02-19 10:08:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2012-03-27 07:54:00",
                        "date_to": "2013-02-19 10:08:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.51 \/ 6.110"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2012-03-27 07:54:00",
                        "date_to": "2013-02-19 10:08:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2012-03-27 07:54:00",
                        "date_to": "2013-02-19 10:08:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2013-02-19 10:18:00",
                "date_to": "2013-10-08 06:13:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2013-02-19 10:18:00",
                        "date_to": "2013-10-08 06:13:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2013-02-19 10:18:00",
                        "date_to": "2013-10-08 06:13:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2013-02-19 10:18:00",
                        "date_to": "2013-10-08 06:13:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2013-02-19 10:18:00",
                        "date_to": "2013-10-08 06:13:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.51 \/ 6.111"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2013-02-19 10:18:00",
                        "date_to": "2013-10-08 06:13:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2013-02-19 10:18:00",
                        "date_to": "2013-10-08 06:13:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2013-10-08 06:29:00",
                "date_to": "2015-01-20 09:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2013-10-08 06:29:00",
                        "date_to": "2015-01-20 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2013-10-08 06:29:00",
                        "date_to": "2015-01-20 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2013-10-08 06:29:00",
                        "date_to": "2015-01-20 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2013-10-08 06:29:00",
                        "date_to": "2015-01-20 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.71 \/ 6.112"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2013-10-08 06:29:00",
                        "date_to": "2015-01-20 09:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2013-10-08 06:29:00",
                        "date_to": "2015-01-20 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2015-01-20 09:21:00",
                "date_to": "2018-04-05 07:48:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2015-01-20 09:21:00",
                        "date_to": "2018-04-05 07:48:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2015-01-20 09:21:00",
                        "date_to": "2018-04-05 07:48:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "495558"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2015-01-20 09:21:00",
                        "date_to": "2018-04-05 07:48:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2015-01-20 09:21:00",
                        "date_to": "2018-04-05 07:48:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "9.20 \/ 6.404"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2015-01-20 09:21:00",
                        "date_to": "2018-04-05 07:48:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2015-01-20 09:21:00",
                        "date_to": "2018-04-05 07:48:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-04-05 08:11:00",
                "date_to": "2018-06-21 06:16:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-04-05 08:11:00",
                        "date_to": "2018-06-21 06:16:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-04-05 08:11:00",
                        "date_to": "2018-06-21 06:16:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-04-05 08:11:00",
                        "date_to": "2018-06-21 06:16:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-04-05 08:11:00",
                        "date_to": "2018-06-21 06:16:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.10.488"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-04-05 08:11:00",
                        "date_to": "2018-06-21 06:16:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-04-05 08:11:00",
                        "date_to": "2018-06-21 06:16:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-06-21 06:18:00",
                "date_to": "2018-11-28 06:59:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-06-21 06:18:00",
                        "date_to": "2018-11-28 06:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-06-21 06:18:00",
                        "date_to": "2018-11-28 06:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-06-21 06:18:00",
                        "date_to": "2018-11-28 06:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-06-21 06:18:00",
                        "date_to": "2018-11-28 06:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.20.232"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-06-21 06:18:00",
                        "date_to": "2018-11-28 06:59:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-06-21 06:18:00",
                        "date_to": "2018-11-28 06:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-11-28 07:02:00",
                "date_to": "2021-08-12 07:47:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-11-28 07:02:00",
                        "date_to": "2021-08-12 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-11-28 07:02:00",
                        "date_to": "2021-08-12 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-11-28 07:02:00",
                        "date_to": "2021-08-12 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-11-28 07:02:00",
                        "date_to": "2021-08-12 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.31.087"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-11-28 07:02:00",
                        "date_to": "2021-08-12 07:47:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-11-28 07:02:00",
                        "date_to": "2021-08-12 07:47:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2021-08-12 07:52:00",
                "date_to": "2022-02-24 07:43:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2021-08-12 07:52:00",
                        "date_to": "2022-02-24 07:43:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2021-08-12 07:52:00",
                        "date_to": "2022-02-24 07:43:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2021-08-12 07:52:00",
                        "date_to": "2022-02-24 07:43:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2021-08-12 07:52:00",
                        "date_to": "2022-02-24 07:43:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.50.274"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2021-08-12 07:52:00",
                        "date_to": "2022-02-24 07:43:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2021-08-12 07:52:00",
                        "date_to": "2022-02-24 07:43:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-02-24 07:48:00",
                "date_to": "2022-11-10 08:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-02-24 07:48:00",
                        "date_to": "2022-11-10 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-02-24 07:48:00",
                        "date_to": "2022-11-10 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-02-24 07:48:00",
                        "date_to": "2022-11-10 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-02-24 07:48:00",
                        "date_to": "2022-11-10 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.52.518"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-02-24 07:48:00",
                        "date_to": "2022-11-10 08:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-02-24 07:48:00",
                        "date_to": "2022-11-10 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-11-10 08:08:00",
                "date_to": "2023-06-13 06:28:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-11-10 08:08:00",
                        "date_to": "2023-06-13 06:28:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-11-10 08:08:00",
                        "date_to": "2023-06-13 06:28:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-11-10 08:08:00",
                        "date_to": "2023-06-13 06:28:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-11-10 08:08:00",
                        "date_to": "2023-06-13 06:28:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.60.259"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-11-10 08:08:00",
                        "date_to": "2023-06-13 06:28:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-11-10 08:08:00",
                        "date_to": "2023-06-13 06:28:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2023-06-13 06:30:00",
                "date_to": "2023-12-12 07:46:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2023-06-13 06:30:00",
                        "date_to": "2023-12-12 07:46:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2023-06-13 06:30:00",
                        "date_to": "2023-12-12 07:46:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2023-06-13 06:30:00",
                        "date_to": "2023-12-12 07:46:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2023-06-13 06:30:00",
                        "date_to": "2023-12-12 07:46:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.61.290"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2023-06-13 06:30:00",
                        "date_to": "2023-12-12 07:46:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2023-06-13 06:30:00",
                        "date_to": "2023-12-12 07:46:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2023-12-12 07:52:00",
                "date_to": "2025-02-24 07:59:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2023-12-12 07:52:00",
                        "date_to": "2025-02-24 07:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2023-12-12 07:52:00",
                        "date_to": "2025-02-24 07:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2023-12-12 07:52:00",
                        "date_to": "2025-02-24 07:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2023-12-12 07:52:00",
                        "date_to": "2025-02-24 07:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.70.040"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2023-12-12 07:52:00",
                        "date_to": "2025-02-24 07:59:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2023-12-12 07:52:00",
                        "date_to": "2025-02-24 07:59:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2025-02-24 08:05:00",
                "date_to": "2025-09-16 06:52:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2025-02-24 08:05:00",
                        "date_to": "2025-09-16 06:52:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2025-02-24 08:05:00",
                        "date_to": "2025-09-16 06:52:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2025-02-24 08:05:00",
                        "date_to": "2025-09-16 06:52:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2025-02-24 08:05:00",
                        "date_to": "2025-09-16 06:52:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.82\/7.900"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2025-02-24 08:05:00",
                        "date_to": "2025-09-16 06:52:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2025-02-24 08:05:00",
                        "date_to": "2025-09-16 06:52:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2025-09-16 06:53:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2025-09-16 06:53:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2025-09-16 06:53:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1705311"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2025-09-16 06:53:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2025-09-16 06:53:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.83\/7.900"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2025-09-16 06:53:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2025-09-16 06:53:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-03-23 13:00:00",
                "date_to": "2010-04-13 11:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRM41249.00"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "60088856"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": 0.05,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-03-23 13:00:00",
                "date_to": "2010-04-13 11:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TZGD"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-03-23 13:00:00",
                        "date_to": "2010-04-13 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2005\/2"
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-04-13 11:30:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIAR25.R3"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "09480014"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.05,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-04-13 11:30:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIT"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-04-13 11:30:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2009\/20"
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": "none",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "BEV",
                        "address": "Schiffamtsgasse 1-3\nA-1020 Wien\nAustria",
                        "infos": "",
                        "name": "Federal Office of Metrology and Surveying Austria",
                        "www": ""
                    },
                    "comment": "",
                    "email": "apos.admin@bev.gv.at",
                    "name": "APOS - Austrian Positioning Service",
                    "phone": "+43 676 82101111",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-03-23 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "2006-03-23 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "INTERNAL"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
                        },
                        "date_from": "2006-03-23 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
                }
            }
        }
    ],
    "station_networks": [
        {
            "name": "APOS"
        }
    ],
    "station_type": "GNSS Continuous"
}