{
    "cdp_num": null,
    "comment": "Pillar is connected to the brick wall with two\r\nbolted plates.\r\nAntenna is aprox. 16 meters above the ground.",
    "conditions": [],
    "country": "Estonia",
    "country_code_ISO": "EST",
    "date_from": "2009-12-14 13:00:00",
    "date_to": null,
    "description": "ARP",
    "geological": {
        "bedrock": {
            "condition": "JOINTED",
            "type": "SEDIMENTARY"
        },
        "characteristic": "bedrock",
        "distance_to_fault": null,
        "fault_zone": "no",
        "fracture_spacing": null
    },
    "iers_domes": "10633M002",
    "instrument_collocation": [],
    "local_ties": [],
    "location": {
        "city": "V\u00f5ru",
        "coordinates": {
            "X": 3032206.28,
            "Y": 1545164.94,
            "Z": 5376375.79,
            "altitude": 109.7,
            "lat": 57.84016127676635,
            "lon": 27.002680231746965
        },
        "country": "Estonia",
        "country_iso_code": "EST",
        "description": "",
        "state": "V\u00f5rumaa",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
    "logs": {
        "contact": "ESTPOS GNSS team (estpos@maaamet.ee)",
        "date": "2025-06-17 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "VOR200EST.xml"
    },
    "marker": "VOR2",
    "monument": {
        "description": "Steel pillar",
        "foundation": "Brick wall",
        "foundation_depth": null,
        "height": 3,
        "monument_inscription": null
    },
    "monument_num": 0,
    "name": "V\u00f5ru",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "ELB",
                    "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                    "infos": "",
                    "name": "Estonian Land Board",
                    "www": ""
                },
                "comment": "",
                "email": "estpos@maaamet.ee",
                "name": "ESTPOS GNSS team",
                "phone": "",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "ELB",
                    "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                    "infos": "",
                    "name": "Estonian Land Board",
                    "www": ""
                },
                "comment": "",
                "email": "estpos@maaamet.ee",
                "name": "ESTPOS GNSS team",
                "phone": "",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-12-14 13:00:00",
                "date_to": "2014-10-24 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA SR520"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "22070"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "-"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-24 12:00:00",
                "date_to": "2018-11-08 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": "2018-11-08 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": "2018-11-08 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": "2018-11-08 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": "2018-11-08 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "-"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": "2018-11-08 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": "2018-11-08 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-11-08 12:00:00",
                "date_to": "2019-09-30 10:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-11-08 12:00:00",
                        "date_to": "2019-09-30 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-11-08 12:00:00",
                        "date_to": "2019-09-30 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-11-08 12:00:00",
                        "date_to": "2019-09-30 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-11-08 12:00:00",
                        "date_to": "2019-09-30 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.30\/6.525"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-11-08 12:00:00",
                        "date_to": "2019-09-30 10:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-11-08 12:00:00",
                        "date_to": "2019-09-30 10:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2019-09-30 10:00:00",
                "date_to": "2020-04-01 15:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2019-09-30 10:00:00",
                        "date_to": "2020-04-01 15:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2019-09-30 10:00:00",
                        "date_to": "2020-04-01 15:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2019-09-30 10:00:00",
                        "date_to": "2020-04-01 15:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2019-09-30 10:00:00",
                        "date_to": "2020-04-01 15:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.31\/6.712"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2019-09-30 10:00:00",
                        "date_to": "2020-04-01 15:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2019-09-30 10:00:00",
                        "date_to": "2020-04-01 15:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2020-04-01 15:00:00",
                "date_to": "2021-10-28 12:20:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2020-04-01 15:00:00",
                        "date_to": "2021-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2020-04-01 15:00:00",
                        "date_to": "2021-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2020-04-01 15:00:00",
                        "date_to": "2021-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2020-04-01 15:00:00",
                        "date_to": "2021-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.31\/6.713"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2020-04-01 15:00:00",
                        "date_to": "2021-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2020-04-01 15:00:00",
                        "date_to": "2021-10-28 12:20:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2021-10-28 12:20:00",
                "date_to": "2022-01-31 09:55:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2021-10-28 12:20:00",
                        "date_to": "2022-01-31 09:55:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2021-10-28 12:20:00",
                        "date_to": "2022-01-31 09:55:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2021-10-28 12:20:00",
                        "date_to": "2022-01-31 09:55:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2021-10-28 12:20:00",
                        "date_to": "2022-01-31 09:55:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.51.489"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2021-10-28 12:20:00",
                        "date_to": "2022-01-31 09:55:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2021-10-28 12:20:00",
                        "date_to": "2022-01-31 09:55:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-01-31 09:55:00",
                "date_to": "2022-08-09 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-01-31 09:55:00",
                        "date_to": "2022-08-09 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-01-31 09:55:00",
                        "date_to": "2022-08-09 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-01-31 09:55:00",
                        "date_to": "2022-08-09 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-01-31 09:55:00",
                        "date_to": "2022-08-09 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.52"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-01-31 09:55:00",
                        "date_to": "2022-08-09 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-01-31 09:55:00",
                        "date_to": "2022-08-09 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-08-09 12:00:00",
                "date_to": "2023-01-05 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-08-09 12:00:00",
                        "date_to": "2023-01-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-08-09 12:00:00",
                        "date_to": "2023-01-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-08-09 12:00:00",
                        "date_to": "2023-01-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-08-09 12:00:00",
                        "date_to": "2023-01-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.60\/6.525"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-08-09 12:00:00",
                        "date_to": "2023-01-05 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-08-09 12:00:00",
                        "date_to": "2023-01-05 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2023-01-05 12:00:00",
                "date_to": "2023-07-26 08:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2023-01-05 12:00:00",
                        "date_to": "2023-07-26 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2023-01-05 12:00:00",
                        "date_to": "2023-07-26 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2023-01-05 12:00:00",
                        "date_to": "2023-07-26 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2023-01-05 12:00:00",
                        "date_to": "2023-07-26 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.61\/6.525"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2023-01-05 12:00:00",
                        "date_to": "2023-07-26 08:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2023-01-05 12:00:00",
                        "date_to": "2023-07-26 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2023-07-26 08:00:00",
                "date_to": "2024-06-04 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2023-07-26 08:00:00",
                        "date_to": "2024-06-04 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR25"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2023-07-26 08:00:00",
                        "date_to": "2024-06-04 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1831115"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2023-07-26 08:00:00",
                        "date_to": "2024-06-04 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2023-07-26 08:00:00",
                        "date_to": "2024-06-04 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.70\/6.525"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2023-07-26 08:00:00",
                        "date_to": "2024-06-04 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2023-07-26 08:00:00",
                        "date_to": "2024-06-04 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2024-06-04 12:00:00",
                "date_to": "2025-06-11 08:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2024-06-04 12:00:00",
                        "date_to": "2025-06-11 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR50"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2024-06-04 12:00:00",
                        "date_to": "2025-06-11 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2092086"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2024-06-04 12:00:00",
                        "date_to": "2025-06-11 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2024-06-04 12:00:00",
                        "date_to": "2025-06-11 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.80\/7.900"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2024-06-04 12:00:00",
                        "date_to": "2025-06-11 08:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2024-06-04 12:00:00",
                        "date_to": "2025-06-11 08:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2025-06-11 08:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2025-06-11 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR50"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2025-06-11 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2092086"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2025-06-11 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2025-06-11 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.83\/7.900"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2025-06-11 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2025-06-11 08:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-12-14 13:00:00",
                "date_to": "2014-10-24 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIAT504"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "-"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "Leica"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": 70,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-12-14 13:00:00",
                "date_to": "2014-10-24 12:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "NONE"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-12-14 13:00:00",
                        "date_to": "2014-10-24 12:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "-"
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-24 12:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIAR25.R4"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "726171"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "Leica"
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 70,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2014-10-24 12:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIT"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2014-10-24 12:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "-"
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ELB",
                        "address": "Mustam\u00e4e tee 51\n10602 Tallinn\nEstonia",
                        "infos": "",
                        "name": "Estonian Land Board",
                        "www": ""
                    },
                    "comment": "",
                    "email": "estpos@maaamet.ee",
                    "name": "ESTPOS GNSS team",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-12-14 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "2009-12-14 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "INTERNAL"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
                        },
                        "date_from": "2009-12-14 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
                }
            }
        }
    ],
    "station_networks": [
        {
            "name": "EPOS"
        },
        {
            "name": "ESTPOS"
        }
    ],
    "station_type": "GNSS Continuous"
}