{
    "cdp_num": null,
    "comment": "Antenna is approx. 5m above ground level.\r\nMonument height provided wrt top bracket.",
    "conditions": [],
    "country": "United Kingdom of Great Britain and Northern Ireland",
    "country_code_ISO": "GBR",
    "date_from": "2008-12-03 00:00:00",
    "date_to": null,
    "description": "Centre of mount thread on plane of antenna ARP",
    "geological": {
        "bedrock": {
            "condition": null,
            "type": null
        },
        "characteristic": null,
        "distance_to_fault": null,
        "fault_zone": "No",
        "fracture_spacing": null
    },
    "iers_domes": "19144M001",
    "instrument_collocation": [],
    "local_ties": [],
    "location": {
        "city": "Stevenage",
        "coordinates": {
            "X": 3943669,
            "Y": -12286,
            "Z": 4996173,
            "altitude": 157.9,
            "lat": 51.9015041468355,
            "lon": -0.17849714815045808
        },
        "country": "United Kingdom of Great Britain and Northern Ireland",
        "country_iso_code": "GBR",
        "description": "",
        "state": "Hertfordshire",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
    "logs": {
        "contact": "Geodesy & Positioning (geodeticenquiries@os.uk)",
        "date": "2026-01-13 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "STEE00GBR.xml"
    },
    "marker": "STEE",
    "monument": {
        "description": "Steel Pole",
        "foundation": "Brick built Control Tower",
        "foundation_depth": null,
        "height": 1,
        "monument_inscription": null
    },
    "monument_num": 0,
    "name": "Stevenage",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "OS",
                    "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                    "infos": "",
                    "name": "Ordnance Survey",
                    "www": ""
                },
                "comment": "",
                "email": "geodeticenquiries@os.uk",
                "name": "Geodesy & Positioning",
                "phone": "",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "OS",
                    "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                    "infos": "",
                    "name": "Ordnance Survey",
                    "www": ""
                },
                "comment": "",
                "email": "geodeticenquiries@os.uk",
                "name": "Geodesy & Positioning",
                "phone": "",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-12-04 12:00:00",
                "date_to": "2009-07-01 13:15:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2009-07-01 13:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200GGPRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2009-07-01 13:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "356452"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2009-07-01 13:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2009-07-01 13:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.00"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2009-07-01 13:15:00",
                        "value_date": null,
                        "value_numeric": 5,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2009-07-01 13:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-07-01 13:35:00",
                "date_to": "2010-05-17 00:12:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2009-07-01 13:35:00",
                        "date_to": "2010-05-17 00:12:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-07-01 13:35:00",
                        "date_to": "2010-05-17 00:12:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "356256"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2009-07-01 13:35:00",
                        "date_to": "2010-05-17 00:12:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2009-07-01 13:35:00",
                        "date_to": "2010-05-17 00:12:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.50"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2009-07-01 13:35:00",
                        "date_to": "2010-05-17 00:12:00",
                        "value_date": null,
                        "value_numeric": 5,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2009-07-01 13:35:00",
                        "date_to": "2010-05-17 00:12:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-05-17 00:15:00",
                "date_to": "2011-06-08 09:05:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-05-17 00:15:00",
                        "date_to": "2011-06-08 09:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-05-17 00:15:00",
                        "date_to": "2011-06-08 09:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "356256"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-05-17 00:15:00",
                        "date_to": "2011-06-08 09:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-05-17 00:15:00",
                        "date_to": "2011-06-08 09:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.81"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-05-17 00:15:00",
                        "date_to": "2011-06-08 09:05:00",
                        "value_date": null,
                        "value_numeric": 5,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-05-17 00:15:00",
                        "date_to": "2011-06-08 09:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "ME firmware v4.005",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2011-06-08 09:40:00",
                "date_to": "2012-08-16 08:19:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2011-06-08 09:40:00",
                        "date_to": "2012-08-16 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2011-06-08 09:40:00",
                        "date_to": "2012-08-16 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "356400"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2011-06-08 09:40:00",
                        "date_to": "2012-08-16 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2011-06-08 09:40:00",
                        "date_to": "2012-08-16 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.81"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2011-06-08 09:40:00",
                        "date_to": "2012-08-16 08:19:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2011-06-08 09:40:00",
                        "date_to": "2012-08-16 08:19:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "ME firmware v4.007",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-08-16 08:40:00",
                "date_to": "2015-06-10 12:04:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2012-08-16 08:40:00",
                        "date_to": "2015-06-10 12:04:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-08-16 08:40:00",
                        "date_to": "2015-06-10 12:04:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "356400"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2012-08-16 08:40:00",
                        "date_to": "2015-06-10 12:04:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2012-08-16 08:40:00",
                        "date_to": "2015-06-10 12:04:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.20"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2012-08-16 08:40:00",
                        "date_to": "2015-06-10 12:04:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2012-08-16 08:40:00",
                        "date_to": "2015-06-10 12:04:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "ME firmware v6.112",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2015-06-10 12:28:00",
                "date_to": "2018-07-11 09:20:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2015-06-10 12:28:00",
                        "date_to": "2018-07-11 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2015-06-10 12:28:00",
                        "date_to": "2018-07-11 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "356400"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2015-06-10 12:28:00",
                        "date_to": "2018-07-11 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2015-06-10 12:28:00",
                        "date_to": "2018-07-11 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "9.20"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2015-06-10 12:28:00",
                        "date_to": "2018-07-11 09:20:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2015-06-10 12:28:00",
                        "date_to": "2018-07-11 09:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-07-11 10:05:00",
                "date_to": "2018-10-24 09:10:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-07-11 10:05:00",
                        "date_to": "2018-10-24 09:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-07-11 10:05:00",
                        "date_to": "2018-10-24 09:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-07-11 10:05:00",
                        "date_to": "2018-10-24 09:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-07-11 10:05:00",
                        "date_to": "2018-10-24 09:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5.33"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-07-11 10:05:00",
                        "date_to": "2018-10-24 09:10:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-07-11 10:05:00",
                        "date_to": "2018-10-24 09:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-10-24 09:15:00",
                "date_to": "2019-10-03 08:15:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-10-24 09:15:00",
                        "date_to": "2019-10-03 08:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-10-24 09:15:00",
                        "date_to": "2019-10-03 08:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-10-24 09:15:00",
                        "date_to": "2019-10-03 08:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-10-24 09:15:00",
                        "date_to": "2019-10-03 08:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5.37"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-10-24 09:15:00",
                        "date_to": "2019-10-03 08:15:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-10-24 09:15:00",
                        "date_to": "2019-10-03 08:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2019-10-03 08:25:00",
                "date_to": "2020-02-28 14:40:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2019-10-03 08:25:00",
                        "date_to": "2020-02-28 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2019-10-03 08:25:00",
                        "date_to": "2020-02-28 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2019-10-03 08:25:00",
                        "date_to": "2020-02-28 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2019-10-03 08:25:00",
                        "date_to": "2020-02-28 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5.42"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2019-10-03 08:25:00",
                        "date_to": "2020-02-28 14:40:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2019-10-03 08:25:00",
                        "date_to": "2020-02-28 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2020-02-28 14:50:00",
                "date_to": "2020-05-15 10:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2020-02-28 14:50:00",
                        "date_to": "2020-05-15 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2020-02-28 14:50:00",
                        "date_to": "2020-05-15 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2020-02-28 14:50:00",
                        "date_to": "2020-05-15 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2020-02-28 14:50:00",
                        "date_to": "2020-05-15 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5.44"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2020-02-28 14:50:00",
                        "date_to": "2020-05-15 10:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2020-02-28 14:50:00",
                        "date_to": "2020-05-15 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2020-05-15 10:10:00",
                "date_to": "2020-10-07 14:40:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2020-05-15 10:10:00",
                        "date_to": "2020-10-07 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2020-05-15 10:10:00",
                        "date_to": "2020-10-07 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2020-05-15 10:10:00",
                        "date_to": "2020-10-07 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2020-05-15 10:10:00",
                        "date_to": "2020-10-07 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5.45"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2020-05-15 10:10:00",
                        "date_to": "2020-10-07 14:40:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2020-05-15 10:10:00",
                        "date_to": "2020-10-07 14:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2020-10-07 14:50:00",
                "date_to": "2021-11-09 11:20:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2020-10-07 14:50:00",
                        "date_to": "2021-11-09 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2020-10-07 14:50:00",
                        "date_to": "2021-11-09 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2020-10-07 14:50:00",
                        "date_to": "2021-11-09 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2020-10-07 14:50:00",
                        "date_to": "2021-11-09 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.08"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2020-10-07 14:50:00",
                        "date_to": "2021-11-09 11:20:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2020-10-07 14:50:00",
                        "date_to": "2021-11-09 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2021-11-09 11:35:00",
                "date_to": "2022-06-17 09:15:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2021-11-09 11:35:00",
                        "date_to": "2022-06-17 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2021-11-09 11:35:00",
                        "date_to": "2022-06-17 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2021-11-09 11:35:00",
                        "date_to": "2022-06-17 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2021-11-09 11:35:00",
                        "date_to": "2022-06-17 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.12"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2021-11-09 11:35:00",
                        "date_to": "2022-06-17 09:15:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2021-11-09 11:35:00",
                        "date_to": "2022-06-17 09:15:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-06-17 09:25:00",
                "date_to": "2023-04-17 11:20:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-06-17 09:25:00",
                        "date_to": "2023-04-17 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-06-17 09:25:00",
                        "date_to": "2023-04-17 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-06-17 09:25:00",
                        "date_to": "2023-04-17 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-06-17 09:25:00",
                        "date_to": "2023-04-17 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.14"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-06-17 09:25:00",
                        "date_to": "2023-04-17 11:20:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-06-17 09:25:00",
                        "date_to": "2023-04-17 11:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2023-04-17 11:35:00",
                "date_to": "2023-09-08 10:05:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2023-04-17 11:35:00",
                        "date_to": "2023-09-08 10:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2023-04-17 11:35:00",
                        "date_to": "2023-09-08 10:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2023-04-17 11:35:00",
                        "date_to": "2023-09-08 10:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2023-04-17 11:35:00",
                        "date_to": "2023-09-08 10:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.20"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2023-04-17 11:35:00",
                        "date_to": "2023-09-08 10:05:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2023-04-17 11:35:00",
                        "date_to": "2023-09-08 10:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2023-09-08 10:15:00",
                "date_to": "2024-02-16 11:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2023-09-08 10:15:00",
                        "date_to": "2024-02-16 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2023-09-08 10:15:00",
                        "date_to": "2024-02-16 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2023-09-08 10:15:00",
                        "date_to": "2024-02-16 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2023-09-08 10:15:00",
                        "date_to": "2024-02-16 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.21"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2023-09-08 10:15:00",
                        "date_to": "2024-02-16 11:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2023-09-08 10:15:00",
                        "date_to": "2024-02-16 11:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2024-02-16 11:40:00",
                "date_to": "2025-05-13 09:35:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2024-02-16 11:40:00",
                        "date_to": "2025-05-13 09:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2024-02-16 11:40:00",
                        "date_to": "2025-05-13 09:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2024-02-16 11:40:00",
                        "date_to": "2025-05-13 09:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2024-02-16 11:40:00",
                        "date_to": "2025-05-13 09:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.23"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2024-02-16 11:40:00",
                        "date_to": "2025-05-13 09:35:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2024-02-16 11:40:00",
                        "date_to": "2025-05-13 09:35:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2025-05-13 09:45:00",
                "date_to": "2026-01-13 15:26:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2025-05-13 09:45:00",
                        "date_to": "2026-01-13 15:26:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2025-05-13 09:45:00",
                        "date_to": "2026-01-13 15:26:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2025-05-13 09:45:00",
                        "date_to": "2026-01-13 15:26:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2025-05-13 09:45:00",
                        "date_to": "2026-01-13 15:26:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.40"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2025-05-13 09:45:00",
                        "date_to": "2026-01-13 15:26:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2025-05-13 09:45:00",
                        "date_to": "2026-01-13 15:26:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2026-01-13 15:36:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2026-01-13 15:36:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "TRIMBLE ALLOY"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2026-01-13 15:36:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5804R40035"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2026-01-13 15:36:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2026-01-13 15:36:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.43"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2026-01-13 15:36:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2026-01-13 15:36:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NaN"
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-12-04 12:00:00",
                "date_to": "2018-09-05 08:40:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIAR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "08440026"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": 160,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "RG58"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": 10,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-12-04 12:00:00",
                "date_to": "2018-09-05 08:40:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIT"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-12-04 12:00:00",
                        "date_to": "2018-09-05 08:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-09-05 10:05:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIAR10"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "21204031"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BAM"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.05,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 160,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "RG58"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 10,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-09-05 10:05:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-09-05 10:05:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "OS",
                        "address": "Adanac Drive\nSO16 0AS Southampton\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "Ordnance Survey",
                        "www": ""
                    },
                    "comment": "",
                    "email": "geodeticenquiries@os.uk",
                    "name": "Geodesy & Positioning",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-12-04 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "2008-12-04 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "INTERNAL"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
                        },
                        "date_from": "2008-12-04 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
                }
            }
        }
    ],
    "station_networks": [
        {
            "name": "EPOS"
        },
        {
            "name": "OS Net"
        }
    ],
    "station_type": "GNSS Continuous"
}