{
    "cdp_num": "7840",
    "comment": "Located in grounds of Herstmonceux Castle a\r\nfew meters from the UK SLR Facility",
    "conditions": [],
    "country": "United Kingdom of Great Britain and Northern Ireland",
    "country_code_ISO": "GBR",
    "date_from": "1991-09-01 00:00:00",
    "date_to": null,
    "description": null,
    "geological": {
        "bedrock": {
            "condition": null,
            "type": null
        },
        "characteristic": null,
        "distance_to_fault": null,
        "fault_zone": null,
        "fracture_spacing": null
    },
    "iers_domes": "13212M007",
    "instrument_collocation": [
        {
            "comment": "",
            "date_from": "1984-09-01 00:00:00",
            "date_to": null,
            "status": "PERMANENT",
            "type": "SLR"
        },
        {
            "comment": "IGLOS site name HERT",
            "date_from": "1999-12-01 00:00:00",
            "date_to": null,
            "status": "PERMANENT",
            "type": "GPS\/GLONASS"
        }
    ],
    "local_ties": [
        {
            "accuracy": 2,
            "comment": "site survey conducted by IGN june 2008",
            "cpd_num": "7840",
            "date_at": "2008-06-23 00:00:00",
            "dx": -6.4992,
            "dy": -10.2707,
            "dz": 3.9401,
            "iers_domes": "13212S001",
            "name": "SLR intersection",
            "survey_method": "GPS CAMPAIGN\/TRIANGULATION",
            "usage": "SLR"
        },
        {
            "accuracy": 2,
            "comment": "site survey conducted by IGN june 2008",
            "cpd_num": null,
            "date_at": "2008-06-23 00:00:00",
            "dx": -9.1855,
            "dy": -135.0916,
            "dz": 16.9475,
            "iers_domes": "13212M010",
            "name": "HERT",
            "survey_method": "GPS CAMPAIGN\/TRIANGULATION",
            "usage": "GNSS"
        }
    ],
    "location": {
        "city": "Hailsham",
        "coordinates": {
            "X": 4033471.33,
            "Y": 23667.86,
            "Z": 4924300.35,
            "altitude": 76.5,
            "lat": 50.867300006224525,
            "lon": 0.33619996611141223
        },
        "country": "United Kingdom of Great Britain and Northern Ireland",
        "country_iso_code": "GBR",
        "description": "",
        "state": "East Sussex",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
    "logs": {
        "contact": "SGF Herstmonceux GNSS team (gnss@sgf.rgo.ac.uk)",
        "date": "2025-03-25 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "HERS00GBR.xml"
    },
    "marker": "HERS",
    "monument": {
        "description": "STEEL MAST",
        "foundation": "CONCRETE BLOCK",
        "foundation_depth": 5,
        "height": 8,
        "monument_inscription": null
    },
    "monument_num": 0,
    "name": "Herstmonceux",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "NSGF",
                    "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                    "infos": "",
                    "name": "NERC Space Geodesy Facility",
                    "www": ""
                },
                "comment": "",
                "email": "gnss@sgf.rgo.ac.uk",
                "name": "SGF Herstmonceux GNSS team",
                "phone": "",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "NSGF",
                    "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                    "infos": "",
                    "name": "NERC Space Geodesy Facility",
                    "www": ""
                },
                "comment": "",
                "email": "gnss@sgf.rgo.ac.uk",
                "name": "SGF Herstmonceux GNSS team",
                "phone": "",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": "SNR-8A receiver from 1991-09-01 to 1992-03-24\r\nFV from 1993-02-01",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1992-03-24 00:00:00",
                "date_to": "1998-01-01 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1992-03-24 00:00:00",
                        "date_to": "1998-01-01 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ROGUE SNR-8C"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1992-03-24 00:00:00",
                        "date_to": "1998-01-01 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "CR325"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1992-03-24 00:00:00",
                        "date_to": "1998-01-01 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1992-03-24 00:00:00",
                        "date_to": "1998-01-01 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "Conan 4.2 (Meenix 7.3)"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1992-03-24 00:00:00",
                        "date_to": "1998-01-01 00:00:00",
                        "value_date": null,
                        "value_numeric": 5,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1992-03-24 00:00:00",
                        "date_to": "1998-01-01 00:00:00",
                        "value_date": null,
                        "value_numeric": 2,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "Temporary installation pending purchase of\r\npermanent (Ashtech) receiver (see sect 3.3)",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1998-02-18 00:00:00",
                "date_to": "1998-06-29 14:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1998-02-18 00:00:00",
                        "date_to": "1998-06-29 14:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ASHTECH Z-XII3"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1998-02-18 00:00:00",
                        "date_to": "1998-06-29 14:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LP01573"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1998-02-18 00:00:00",
                        "date_to": "1998-06-29 14:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1998-02-18 00:00:00",
                        "date_to": "1998-06-29 14:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1F50 (nav); 1D02*50 (channel)"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1998-02-18 00:00:00",
                        "date_to": "1998-06-29 14:00:00",
                        "value_date": null,
                        "value_numeric": 4,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1998-02-18 00:00:00",
                        "date_to": "1998-06-29 14:00:00",
                        "value_date": null,
                        "value_numeric": 2,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "Permanent receiver - model 700845-10(G)",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1998-07-01 00:00:00",
                "date_to": "1999-08-20 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1998-07-01 00:00:00",
                        "date_to": "1999-08-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ASHTECH Z-XII3"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1998-07-01 00:00:00",
                        "date_to": "1999-08-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LP03373"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1998-07-01 00:00:00",
                        "date_to": "1999-08-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1998-07-01 00:00:00",
                        "date_to": "1999-08-20 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "CB00 (nav); 1D02*50 (channel)"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1998-07-01 00:00:00",
                        "date_to": "1999-08-20 00:00:00",
                        "value_date": null,
                        "value_numeric": 4,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1998-07-01 00:00:00",
                        "date_to": "1999-08-20 00:00:00",
                        "value_date": null,
                        "value_numeric": 2,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "Firmware upgrade for GPS week rollover",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "1999-08-20 01:37:00",
                "date_to": "2010-08-19 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "1999-08-20 01:37:00",
                        "date_to": "2010-08-19 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "ASHTECH Z-XII3"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "1999-08-20 01:37:00",
                        "date_to": "2010-08-19 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LP03373"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "1999-08-20 01:37:00",
                        "date_to": "2010-08-19 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "1999-08-20 01:37:00",
                        "date_to": "2010-08-19 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "CD00"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "1999-08-20 01:37:00",
                        "date_to": "2010-08-19 12:00:00",
                        "value_date": null,
                        "value_numeric": 4,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "1999-08-20 01:37:00",
                        "date_to": "2010-08-19 12:00:00",
                        "value_date": null,
                        "value_numeric": 2,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "Septentrio receiver takes a 10Mhz and 1pps input\r\nfrom\r\nH-Maser. Receiver is located in the same temp\r\ncontrolled\r\nroom as the maser.",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-08-19 12:00:00",
                "date_to": "2010-10-06 09:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-08-19 12:00:00",
                        "date_to": "2010-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX3ETR"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-08-19 12:00:00",
                        "date_to": "2010-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2001062"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-08-19 12:00:00",
                        "date_to": "2010-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-08-19 12:00:00",
                        "date_to": "2010-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1.4.0"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-08-19 12:00:00",
                        "date_to": "2010-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-08-19 12:00:00",
                        "date_to": "2010-10-06 09:00:00",
                        "value_date": null,
                        "value_numeric": 1,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "Firmware update to 2.1",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "NSGF",
                        "address": "Herstmonceux Castle\nBN27 1RN Hailsham\nUnited Kingdom of Great Britain and Northern Ireland (the)",
                        "infos": "",
                        "name": "NERC Space Geodesy Facility",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gnss@sgf.rgo.ac.uk",
                    "name": "SGF Herstmonceux GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-10-06 09:00:00",
                "date_to": "2018-08-22 09:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-10-06 09:00:00",
                        "date_to": "2018-08-22 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "SEPT POLARX3ETR"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-10-06 09:00:00",
                        "date_to": "2018-08-22 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2001062"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-10-06 09:00:00",
                        "date_to": "2018-08-22 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-10-06 09:00:00",
                        "date_to": "2018-08-22 09:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.1"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-10-06 09:00:00",
                        "date_to": "2018-08-22 09:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-10-06 09:00:00",
                        "date_to": "2018-08-22 09:00:00",
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        },
        {
            "name": "EPOS"
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            "name": "IGS"
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}