{
    "cdp_num": null,
    "comment": null,
    "conditions": [],
    "country": "Czechia",
    "country_code_ISO": "CZE",
    "date_from": "2005-09-07 00:00:00",
    "date_to": null,
    "description": "Center of hole in steel plate",
    "geological": {
        "bedrock": {
            "condition": null,
            "type": null
        },
        "characteristic": null,
        "distance_to_fault": null,
        "fault_zone": null,
        "fracture_spacing": null
    },
    "iers_domes": "11558M001",
    "instrument_collocation": [],
    "local_ties": [],
    "location": {
        "city": "Sumperk",
        "coordinates": {
            "X": 3931871.958,
            "Y": 1200665.082,
            "Z": 4860558.938,
            "altitude": 378.4,
            "lat": 49.964769276931435,
            "lon": 16.980957023435767
        },
        "country": "Czechia",
        "country_iso_code": "CZE",
        "description": "",
        "state": "Olomouc region",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
    "logs": {
        "contact": "czepos@cuzk.cz",
        "date": "2025-02-18 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "CSUM00CZE.xml"
    },
    "marker": "CSUM",
    "monument": {
        "description": "Steel pole",
        "foundation": "Roof of the building",
        "foundation_depth": null,
        "height": null,
        "monument_inscription": null
    },
    "monument_num": 0,
    "name": "Sumperk",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "ZU",
                    "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                    "infos": "",
                    "name": "Land Survey Office",
                    "www": ""
                },
                "comment": "",
                "email": "czepos@cuzk.cz",
                "name": "Operational centre ZU (Land Survey Office)",
                "phone": "",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "ZU",
                    "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                    "infos": "",
                    "name": "Land Survey Office",
                    "www": ""
                },
                "comment": "",
                "email": "czepos@cuzk.cz",
                "name": "Operational centre ZU (Land Survey Office)",
                "phone": "",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-09-07 00:00:00",
                "date_to": "2005-12-12 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2005-12-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2005-12-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "457132"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2005-12-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2005-12-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "2.12\/2.121"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2005-12-12 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2005-12-12 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-12-12 00:00:00",
                "date_to": "2006-06-05 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2005-12-12 00:00:00",
                        "date_to": "2006-06-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-12-12 00:00:00",
                        "date_to": "2006-06-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "457132"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2005-12-12 00:00:00",
                        "date_to": "2006-06-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2005-12-12 00:00:00",
                        "date_to": "2006-06-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "3.00"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2005-12-12 00:00:00",
                        "date_to": "2006-06-05 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2005-12-12 00:00:00",
                        "date_to": "2006-06-05 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2006-06-05 00:00:00",
                "date_to": "2007-07-31 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2006-06-05 00:00:00",
                        "date_to": "2007-07-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2006-06-05 00:00:00",
                        "date_to": "2007-07-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "457132"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2006-06-05 00:00:00",
                        "date_to": "2007-07-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2006-06-05 00:00:00",
                        "date_to": "2007-07-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.00"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2006-06-05 00:00:00",
                        "date_to": "2007-07-31 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2006-06-05 00:00:00",
                        "date_to": "2007-07-31 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2007-07-31 00:00:00",
                "date_to": "2008-02-06 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2007-07-31 00:00:00",
                        "date_to": "2008-02-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2007-07-31 00:00:00",
                        "date_to": "2008-02-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "457132"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2007-07-31 00:00:00",
                        "date_to": "2008-02-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2007-07-31 00:00:00",
                        "date_to": "2008-02-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5.50"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2007-07-31 00:00:00",
                        "date_to": "2008-02-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2007-07-31 00:00:00",
                        "date_to": "2008-02-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2008-02-06 00:00:00",
                "date_to": "2009-09-04 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2008-02-06 00:00:00",
                        "date_to": "2009-09-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2008-02-06 00:00:00",
                        "date_to": "2009-09-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "457132"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2008-02-06 00:00:00",
                        "date_to": "2009-09-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2008-02-06 00:00:00",
                        "date_to": "2009-09-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "5.62"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2008-02-06 00:00:00",
                        "date_to": "2009-09-04 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2008-02-06 00:00:00",
                        "date_to": "2009-09-04 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2009-09-04 00:00:00",
                "date_to": "2010-06-14 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2009-09-04 00:00:00",
                        "date_to": "2010-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2009-09-04 00:00:00",
                        "date_to": "2010-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "457132"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2009-09-04 00:00:00",
                        "date_to": "2010-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2009-09-04 00:00:00",
                        "date_to": "2010-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.53"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2009-09-04 00:00:00",
                        "date_to": "2010-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2009-09-04 00:00:00",
                        "date_to": "2010-06-14 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2010-06-14 00:00:00",
                "date_to": "2012-03-27 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2010-06-14 00:00:00",
                        "date_to": "2012-03-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200PRO"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2010-06-14 00:00:00",
                        "date_to": "2012-03-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "457132"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2010-06-14 00:00:00",
                        "date_to": "2012-03-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2010-06-14 00:00:00",
                        "date_to": "2012-03-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "7.80"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2010-06-14 00:00:00",
                        "date_to": "2012-03-27 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2010-06-14 00:00:00",
                        "date_to": "2012-03-27 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-03-27 00:00:00",
                "date_to": "2015-01-15 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2012-03-27 00:00:00",
                        "date_to": "2015-01-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-03-27 00:00:00",
                        "date_to": "2015-01-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "460030"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2012-03-27 00:00:00",
                        "date_to": "2015-01-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2012-03-27 00:00:00",
                        "date_to": "2015-01-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.51\/6.110"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2012-03-27 00:00:00",
                        "date_to": "2015-01-15 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2012-03-27 00:00:00",
                        "date_to": "2015-01-15 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2015-01-15 00:00:00",
                "date_to": "2018-01-06 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2015-01-15 00:00:00",
                        "date_to": "2018-01-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2015-01-15 00:00:00",
                        "date_to": "2018-01-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "460030"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2015-01-15 00:00:00",
                        "date_to": "2018-01-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2015-01-15 00:00:00",
                        "date_to": "2018-01-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "9.20\/6.404"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2015-01-15 00:00:00",
                        "date_to": "2018-01-06 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2015-01-15 00:00:00",
                        "date_to": "2018-01-06 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-01-06 00:00:00",
                "date_to": "2018-01-18 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-01-06 00:00:00",
                        "date_to": "2018-01-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-01-06 00:00:00",
                        "date_to": "2018-01-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "460030"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-01-06 00:00:00",
                        "date_to": "2018-01-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+SBAS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-01-06 00:00:00",
                        "date_to": "2018-01-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "9.20\/6.405"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-01-06 00:00:00",
                        "date_to": "2018-01-18 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-01-06 00:00:00",
                        "date_to": "2018-01-18 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2018-01-19 00:00:00",
                "date_to": "2019-04-02 14:05:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2018-01-19 00:00:00",
                        "date_to": "2019-04-02 14:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2018-01-19 00:00:00",
                        "date_to": "2019-04-02 14:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "460030"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2018-01-19 00:00:00",
                        "date_to": "2019-04-02 14:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2018-01-19 00:00:00",
                        "date_to": "2019-04-02 14:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "9.20\/6.405"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2018-01-19 00:00:00",
                        "date_to": "2019-04-02 14:05:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2018-01-19 00:00:00",
                        "date_to": "2019-04-02 14:05:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2019-04-02 14:15:00",
                "date_to": "2022-02-17 22:30:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2019-04-02 14:15:00",
                        "date_to": "2022-02-17 22:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2019-04-02 14:15:00",
                        "date_to": "2022-02-17 22:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1706535"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2019-04-02 14:15:00",
                        "date_to": "2022-02-17 22:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS+QZSS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2019-04-02 14:15:00",
                        "date_to": "2022-02-17 22:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.31\/7.403"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2019-04-02 14:15:00",
                        "date_to": "2022-02-17 22:30:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2019-04-02 14:15:00",
                        "date_to": "2022-02-17 22:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-02-17 22:45:00",
                "date_to": "2022-08-17 09:34:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-02-17 22:45:00",
                        "date_to": "2022-08-17 09:34:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-02-17 22:45:00",
                        "date_to": "2022-08-17 09:34:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1706535"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-02-17 22:45:00",
                        "date_to": "2022-08-17 09:34:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS+QZSS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-02-17 22:45:00",
                        "date_to": "2022-08-17 09:34:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.52\/7.711"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-02-17 22:45:00",
                        "date_to": "2022-08-17 09:34:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-02-17 22:45:00",
                        "date_to": "2022-08-17 09:34:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2022-08-17 09:39:00",
                "date_to": "2025-02-17 19:10:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2022-08-17 09:39:00",
                        "date_to": "2025-02-17 19:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2022-08-17 09:39:00",
                        "date_to": "2025-02-17 19:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1706535"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2022-08-17 09:39:00",
                        "date_to": "2025-02-17 19:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS+QZSS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2022-08-17 09:39:00",
                        "date_to": "2025-02-17 19:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.60\/7.811"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2022-08-17 09:39:00",
                        "date_to": "2025-02-17 19:10:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2022-08-17 09:39:00",
                        "date_to": "2025-02-17 19:10:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2025-02-17 19:10:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2025-02-17 19:10:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GR30"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2025-02-17 19:10:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "1706535"
                    },
                    {
                        "attribute": {
                            "name": "satellite_system"
                        },
                        "date_from": "2025-02-17 19:10:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "GPS+GLO+GAL+BDS+QZSS+SBAS"
                    },
                    {
                        "attribute": {
                            "name": "firmware_version"
                        },
                        "date_from": "2025-02-17 19:10:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "4.82\/7.900"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
                        },
                        "date_from": "2025-02-17 19:10:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2025-02-17 19:10:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-09-07 00:00:00",
                "date_to": "2012-04-17 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIAT504"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "102941"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": 0.0665,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-09-07 00:00:00",
                "date_to": "2012-04-17 00:00:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIS"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": "2012-04-17 00:00:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-04-17 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "antenna_type"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIAR25.R4"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "725336"
                    },
                    {
                        "attribute": {
                            "name": "antenna_reference_point"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "BPA"
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_up_ecc"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0.0677,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_north_ecc"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "marker_arp_east_ecc"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "alignment_from_true_n"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_type"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "antenna_cable_length"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "antenna"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-04-17 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "radome_type"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEIT"
                    },
                    {
                        "attribute": {
                            "name": "serial_number"
                        },
                        "date_from": "2012-04-17 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "radome"
                }
            }
        },
        {
            "item": {
                "comment": null,
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "ZU",
                        "address": "Pod Sidlistem 9\nPraha 8 - Kobylisy\nCzechia",
                        "infos": "",
                        "name": "Land Survey Office",
                        "www": ""
                    },
                    "comment": "",
                    "email": "czepos@cuzk.cz",
                    "name": "Operational centre ZU (Land Survey Office)",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2005-09-07 00:00:00",
                "date_to": null,
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "standard_type"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "INTERNAL"
                    },
                    {
                        "attribute": {
                            "name": "input_frequency"
                        },
                        "date_from": "2005-09-07 00:00:00",
                        "date_to": null,
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "frequency_standard"
                }
            }
        }
    ],
    "station_networks": [
        {
            "name": "CZEPOS"
        }
    ],
    "station_type": "GNSS Continuous"
}