{
    "cdp_num": null,
    "comment": "Reinforced concrete block on top municipal\r\nmorgue in Vilaflor.",
    "conditions": [],
    "country": "Spain",
    "country_code_ISO": "ESP",
    "date_from": "2008-08-22 00:00:00",
    "date_to": null,
    "description": "BRASS PLATE",
    "geological": {
        "bedrock": {
            "condition": "WEATHERED",
            "type": "IGNEOUS"
        },
        "characteristic": "CONGLOMERATE",
        "distance_to_fault": null,
        "fault_zone": "NO",
        "fracture_spacing": null
    },
    "iers_domes": "19304M001",
    "instrument_collocation": [],
    "local_ties": [],
    "location": {
        "city": "Vilaflor",
        "coordinates": {
            "X": 5393097.6,
            "Y": -1611538,
            "Z": 2992734.1,
            "altitude": 1468.2,
            "lat": 28.158892518779414,
            "lon": -16.6369300080489
        },
        "country": "Spain",
        "country_iso_code": "ESP",
        "description": "TN04 is a reference point of the Volcanic\r\nService System GNSS\r\nFiducial Network raised by the Instituto\r\nGeografico Nacional",
        "state": "Vilaflor",
        "tectonic": {
            "plate_name": "AFRICAN"
        }
    },
    "logs": {
        "contact": "ergnss@transportes.gob.es",
        "date": "2023-07-26 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "TN0400ESP.xml"
    },
    "marker": "TN04",
    "monument": {
        "description": "PILLAR",
        "foundation": "CONCRETE BLOCK",
        "foundation_depth": 0.5,
        "height": 0.5,
        "monument_inscription": "None"
    },
    "monument_num": 0,
    "name": "Vilaflor",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "IGE",
                    "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                    "infos": "",
                    "name": "Instituto Geografico Nacional de Espana",
                    "www": ""
                },
                "comment": "",
                "email": "ergnss@mitma.es",
                "name": "Geodesy Department \u2013 IGN",
                "phone": "",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "IGE",
                    "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                    "infos": "",
                    "name": "Instituto Geografico Nacional de Espana",
                    "www": ""
                },
                "comment": "",
                "email": "ergnss@transportes.gob.es",
                "name": "Geodesy Department - IGN",
                "phone": "",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-08-22 16:00:00",
                "date_to": "2008-09-15 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2008-08-22 16:00:00",
                        "date_to": "2008-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-08-22 16:00:00",
                        "date_to": "2008-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459181"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2008-08-22 16:00:00",
                        "date_to": "2008-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2008-08-22 16:00:00",
                        "date_to": "2008-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5.62"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2008-08-22 16:00:00",
                        "date_to": "2008-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2008-08-22 16:00:00",
                        "date_to": "2008-09-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-09-15 16:00:00",
                "date_to": "2008-11-12 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2008-09-15 16:00:00",
                        "date_to": "2008-11-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-09-15 16:00:00",
                        "date_to": "2008-11-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459181"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2008-09-15 16:00:00",
                        "date_to": "2008-11-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2008-09-15 16:00:00",
                        "date_to": "2008-11-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.02"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2008-09-15 16:00:00",
                        "date_to": "2008-11-12 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2008-09-15 16:00:00",
                        "date_to": "2008-11-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-11-12 16:00:00",
                "date_to": "2009-08-04 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2008-11-12 16:00:00",
                        "date_to": "2009-08-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-11-12 16:00:00",
                        "date_to": "2009-08-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459175"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2008-11-12 16:00:00",
                        "date_to": "2009-08-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2008-11-12 16:00:00",
                        "date_to": "2009-08-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "6.02"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2008-11-12 16:00:00",
                        "date_to": "2009-08-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2008-11-12 16:00:00",
                        "date_to": "2009-08-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-08-04 16:00:00",
                "date_to": "2010-02-16 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2009-08-04 16:00:00",
                        "date_to": "2010-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-08-04 16:00:00",
                        "date_to": "2010-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459175"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2009-08-04 16:00:00",
                        "date_to": "2010-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2009-08-04 16:00:00",
                        "date_to": "2010-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.52"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2009-08-04 16:00:00",
                        "date_to": "2010-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2009-08-04 16:00:00",
                        "date_to": "2010-02-16 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-02-16 16:00:00",
                "date_to": "2010-06-30 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-02-16 16:00:00",
                        "date_to": "2010-06-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-02-16 16:00:00",
                        "date_to": "2010-06-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459175"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-02-16 16:00:00",
                        "date_to": "2010-06-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-02-16 16:00:00",
                        "date_to": "2010-06-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.80"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-02-16 16:00:00",
                        "date_to": "2010-06-30 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-02-16 16:00:00",
                        "date_to": "2010-06-30 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-06-30 16:00:00",
                "date_to": "2010-07-22 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-06-30 16:00:00",
                        "date_to": "2010-07-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-06-30 16:00:00",
                        "date_to": "2010-07-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459175"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-06-30 16:00:00",
                        "date_to": "2010-07-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-06-30 16:00:00",
                        "date_to": "2010-07-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.0\/3.019"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-06-30 16:00:00",
                        "date_to": "2010-07-22 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-06-30 16:00:00",
                        "date_to": "2010-07-22 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "Set tracking of unhealthy satellites",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-07-22 00:00:00",
                "date_to": "2011-02-10 16:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-07-22 00:00:00",
                        "date_to": "2011-02-10 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-07-22 00:00:00",
                        "date_to": "2011-02-10 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459175"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-07-22 00:00:00",
                        "date_to": "2011-02-10 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-07-22 00:00:00",
                        "date_to": "2011-02-10 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.0\/3.019"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-07-22 00:00:00",
                        "date_to": "2011-02-10 16:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-07-22 00:00:00",
                        "date_to": "2011-02-10 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2011-02-10 16:00:00",
                "date_to": "2012-12-13 16:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2011-02-10 16:00:00",
                        "date_to": "2012-12-13 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2011-02-10 16:00:00",
                        "date_to": "2012-12-13 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459175"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2011-02-10 16:00:00",
                        "date_to": "2012-12-13 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2011-02-10 16:00:00",
                        "date_to": "2012-12-13 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.01"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2011-02-10 16:00:00",
                        "date_to": "2012-12-13 16:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2011-02-10 16:00:00",
                        "date_to": "2012-12-13 16:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-12-13 16:00:00",
                "date_to": "2022-09-30 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2012-12-13 16:00:00",
                        "date_to": "2022-09-30 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-12-13 16:00:00",
                        "date_to": "2022-09-30 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "459175"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2012-12-13 16:00:00",
                        "date_to": "2022-09-30 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2012-12-13 16:00:00",
                        "date_to": "2022-09-30 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.20\/2.127"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2012-12-13 16:00:00",
                        "date_to": "2022-09-30 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2012-12-13 16:00:00",
                        "date_to": "2022-09-30 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-09-30 12:00:00",
                "date_to": "2022-11-25 07:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-09-30 12:00:00",
                        "date_to": "2022-11-25 07:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR50"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-09-30 12:00:00",
                        "date_to": "2022-11-25 07:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1871651"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-09-30 12:00:00",
                        "date_to": "2022-11-25 07:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-09-30 12:00:00",
                        "date_to": "2022-11-25 07:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.51\/7.710"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-09-30 12:00:00",
                        "date_to": "2022-11-25 07:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-09-30 12:00:00",
                        "date_to": "2022-11-25 07:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-11-25 07:00:00",
                "date_to": "2023-07-26 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-11-25 07:00:00",
                        "date_to": "2023-07-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR50"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-11-25 07:00:00",
                        "date_to": "2023-07-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1871651"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-11-25 07:00:00",
                        "date_to": "2023-07-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-11-25 07:00:00",
                        "date_to": "2023-07-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.61\/7.811"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-11-25 07:00:00",
                        "date_to": "2023-07-26 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-11-25 07:00:00",
                        "date_to": "2023-07-26 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2023-07-26 12:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2023-07-26 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR50"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2023-07-26 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1871651"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2023-07-26 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2023-07-26 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.70\/7.813"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2023-07-26 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2023-07-26 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-08-22 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIAT504"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "103026"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 30,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-08-22 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-08-22 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "103026"
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@transportes.gob.es",
                    "name": "Geodesy Department - IGN",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "IGE",
                        "address": "General Ibanez de Ibero 3\n28003 Madrid\nSpain",
                        "infos": "",
                        "name": "Instituto Geografico Nacional de Espana",
                        "www": ""
                    },
                    "comment": "",
                    "email": "ergnss@mitma.es",
                    "name": "Geodesy Department \u2013 IGN",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2001-05-17 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "2001-05-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "INTERNAL"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
                        },
                        "date_from": "2001-05-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
                }
            }
        }
    ],
    "station_networks": [],
    "station_type": "GNSS Continuous"
}