{
    "cdp_num": null,
    "comment": "Height of pillar above roof is 4.4\r\nHeight of point above groud is 11.6",
    "conditions": [
        {
            "comments": "2019-02-06\/2019-03-29 reduction obstructions\r\nin elevation angles between 5 and 15 degrees\r\n",
            "date_from": "2011-12-21 00:00:00",
            "date_to": "2019-03-29 00:00:00",
            "type": "signal_obstructions: TREES"
        }
    ],
    "country": "Czechia",
    "country_code_ISO": "CZE",
    "date_from": "2006-07-04 00:00:00",
    "date_to": null,
    "description": "CENTER OF HOLE OF STEEL FORCED CENTERING",
    "geological": {
        "bedrock": {
            "condition": "WEATHERED",
            "type": "METAMORPHIC"
        },
        "characteristic": "BEDROCK",
        "distance_to_fault": null,
        "fault_zone": "NO",
        "fracture_spacing": "51-200"
    },
    "iers_domes": "11502M006",
    "instrument_collocation": [
        {
            "comment": "Circumzenithal VUGTK 100\/1000\r\nExact date in 1970 not known",
            "date_from": "1970-01-01 00:00:00",
            "date_to": null,
            "status": "PERMANENT",
            "type": "VISUAL ASTROMETRY"
        },
        {
            "comment": "Askania GS15 (No.228)\r\nTidal station ICET No. 0930 Pecny",
            "date_from": "1976-04-22 00:00:00",
            "date_to": "2007-02-13 00:00:00",
            "status": "PERMANENT",
            "type": "EARTH TIDAL GRAVIMETER"
        },
        {
            "comment": "Epoch measurements in 1978, 1983, 1986, 1992,\r\n1993, 2x 1995, 1996, 1997, 2x 1998, 2000,\r\nperiodically from 2001 (own FG5 No. 215 and\r\nFG5-X No. 251)",
            "date_from": "1978-10-04 00:00:00",
            "date_to": null,
            "status": "PERMANENT",
            "type": "ABSOLUTE GRAVIMETER"
        },
        {
            "comment": "IGS station GOPE",
            "date_from": "1995-05-13 00:00:00",
            "date_to": null,
            "status": "PERMANENT",
            "type": "GNSS"
        },
        {
            "comment": "GWR OSG-050\r\nGGP station PE\r\n2017: moved to new lab",
            "date_from": "2007-02-14 00:00:00",
            "date_to": null,
            "status": "PERMANENT",
            "type": "SUPERCONDUCTING GRAVIMETER"
        },
        {
            "comment": "Very-broad-band seismometer Guralp CMG-3TD\r\ninstaled in 60 m depth borehole\r\nSeismic station GOPC\r\nnow broken and removed from borehole",
            "date_from": "2009-05-14 00:00:00",
            "date_to": null,
            "status": "PERMANENT",
            "type": "SEISMOMETER"
        }
    ],
    "local_ties": [
        {
            "accuracy": 1,
            "comment": "The vector is referred to the reference point\r\nof GOP6 (mark on the top of the concrete\r\npillar) i.e. dx = x (0209) - x (GOP6).",
            "cpd_num": null,
            "date_at": "1994-04-01 00:00:00",
            "dx": -69.1816,
            "dy": 84.9915,
            "dz": 35.7126,
            "iers_domes": "11502M001",
            "name": "EUREF 0209",
            "survey_method": "GPS CAMPAIGN",
            "usage": "TRIANGULATION STATION"
        },
        {
            "accuracy": 1,
            "comment": "The vector is referred to the reference point\r\nof GOP6 (mark on the top of the concrete\r\npillar) i.e. dx = x (GOPE) - x (GOP6).\r\nDate measured is mean epoch - results are\r\naverage form 36 days of measurement.",
            "cpd_num": null,
            "date_at": "2008-02-24 00:00:00",
            "dx": -3.2001,
            "dy": 0.3343,
            "dz": 2.5319,
            "iers_domes": "11502M002",
            "name": "GOPE",
            "survey_method": "GPS CAMPAIGN",
            "usage": "MAIN PILLAR"
        },
        {
            "accuracy": 1,
            "comment": "The vector is referred to the reference point\r\nof GOP6 (mark on the top of the concrete\r\npillar) i.e. dx = x (GOP3) - x (GOP6).\r\nDate measured is mean epoch - results are\r\naverage form 24 days of measurement.",
            "cpd_num": null,
            "date_at": "2008-03-01 00:00:00",
            "dx": -1.1536,
            "dy": 2.9189,
            "dz": 0.3322,
            "iers_domes": "11502M003",
            "name": "GOP3",
            "survey_method": "GPS CAMPAIGN",
            "usage": "EXCENTRIC PILLAR"
        },
        {
            "accuracy": 1,
            "comment": "The vector is referred to the reference point\r\nof GOP6 (mark on the top of the concrete\r\npillar) i.e. dx = x (GOP5) - x (GOP6).\r\nDate measured is mean epoch - results are\r\naverage form 26 days of measurement.",
            "cpd_num": null,
            "date_at": "2008-03-02 00:00:00",
            "dx": -0.3805,
            "dy": 0.958,
            "dz": 0.1145,
            "iers_domes": "11502M005",
            "name": "GOP5",
            "survey_method": "GPS CAMPAIGN",
            "usage": "EXCENTRIC PILLAR"
        },
        {
            "accuracy": 1,
            "comment": "The vector is referred to the reference point\r\nof GOP6 (mark on the top of the concrete\r\npillar) i.e. dx = x (GOP4) - x (GOP6).\r\nDate measured is mean epoch - results are\r\naverage form 44 days of measurement.",
            "cpd_num": null,
            "date_at": "2008-03-03 00:00:00",
            "dx": -0.7689,
            "dy": 1.9509,
            "dz": 0.2253,
            "iers_domes": "11502M004",
            "name": "GOP4",
            "survey_method": "GPS CAMPAIGN",
            "usage": "EXCENTRIC PILLAR for GNSS TIME receiver"
        }
    ],
    "location": {
        "city": "Ondrejov",
        "coordinates": {
            "X": 3979319.62,
            "Y": 1050311.94,
            "Z": 4857064.38,
            "altitude": 592.6,
            "lat": 49.91366663241546,
            "lon": 14.785602713197315
        },
        "country": "Czechia",
        "country_iso_code": "CZE",
        "description": "ETRF89",
        "state": "Bohemia",
        "tectonic": {
            "plate_name": "EURASIAN"
        }
    },
    "logs": {
        "contact": "GOP operation center (gop_oc@pecny.cz)",
        "date": "2026-03-31 00:00:00",
        "log_type": "UPDATE",
        "modified": "UNAVAILABLE",
        "previous": "UNAVAILABLE",
        "title": "GOP600CZE.xml"
    },
    "marker": "GOP6",
    "monument": {
        "description": "CONCRETE PILLAR ON THE ROOF",
        "foundation": "ROOF OF BUILDING",
        "foundation_depth": 3.6,
        "height": 11.6,
        "monument_inscription": null
    },
    "monument_num": 0,
    "name": "Pecny, Ondrejov \/ CZ",
    "receiver_num": 0,
    "station_contacts": [
        {
            "contact": {
                "agency": {
                    "abbreviation": "RIGTC GOP",
                    "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                    "infos": "",
                    "name": "Research Institute of Geodesy, Topography and Cartography",
                    "www": ""
                },
                "comment": "",
                "email": "gop_oc@pecny.cz",
                "name": "GOP operation center",
                "phone": "",
                "role": "site_owner",
                "title": ""
            }
        },
        {
            "contact": {
                "agency": {
                    "abbreviation": "RIGTC GOP",
                    "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                    "infos": "",
                    "name": "Research Institute of Geodesy, Topography and Cartography",
                    "www": ""
                },
                "comment": "",
                "email": "gop_oc@pecny.cz",
                "name": "GOP operation center",
                "phone": "",
                "role": "metadata_custodian",
                "title": ""
            }
        }
    ],
    "station_items": [
        {
            "item": {
                "comment": "air conditioning",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
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                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
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                    "role": "site_owner",
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                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
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                    "role": "metadata_custodian",
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                },
                "date_from": "2011-12-21 00:00:00",
                "date_to": "2012-02-27 21:30:00",
                "item_attributes": [
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                        "attribute": {
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                        "date_from": "2011-12-21 00:00:00",
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                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
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                        "date_from": "2011-12-21 00:00:00",
                        "date_to": "2012-02-27 21:30:00",
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                        "value_date": null,
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                        "value_varchar": "GPS+GLO+GAL+SBAS"
                    },
                    {
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                        "date_from": "2011-12-21 00:00:00",
                        "date_to": "2012-02-27 21:30:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.50\/6.110"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
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                        "date_from": "2011-12-21 00:00:00",
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                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
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                        "value_date": null,
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                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "air conditioning",
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                        "abbreviation": "RIGTC GOP",
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                        "infos": "",
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                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
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                    "role": "site_owner",
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                        "abbreviation": "RIGTC GOP",
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                        "name": "Research Institute of Geodesy, Topography and Cartography",
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                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
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                    "role": "metadata_custodian",
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                },
                "date_from": "2012-02-27 22:17:00",
                "date_to": "2012-08-07 11:51:00",
                "item_attributes": [
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                        "attribute": {
                            "name": "receiver_type"
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                        "date_from": "2012-02-27 22:17:00",
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                        "value_varchar": "LEICA GRX1200+GNSS"
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                    {
                        "attribute": {
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                        "date_to": "2012-08-07 11:51:00",
                        "value_date": null,
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                        "value_varchar": "GPS+GLO+GAL+SBAS"
                    },
                    {
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                            "name": "firmware_version"
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                        "date_to": "2012-08-07 11:51:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "8.51\/6.110"
                    },
                    {
                        "attribute": {
                            "name": "elevation_cutoff_setting"
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                        "date_from": "2012-02-27 22:17:00",
                        "date_to": "2012-08-07 11:51:00",
                        "value_date": null,
                        "value_numeric": 0,
                        "value_varchar": null
                    },
                    {
                        "attribute": {
                            "name": "temperature_stabilization"
                        },
                        "date_from": "2012-02-27 22:17:00",
                        "date_to": "2012-08-07 11:51:00",
                        "value_date": null,
                        "value_numeric": 1,
                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "air conditioning",
                "contact_as_owner": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "site_owner",
                    "title": ""
                },
                "contact_as_producer": {
                    "agency": {
                        "abbreviation": "RIGTC GOP",
                        "address": "Pecny 244\nCZ-25165 Ondrejov\nCzechia",
                        "infos": "",
                        "name": "Research Institute of Geodesy, Topography and Cartography",
                        "www": ""
                    },
                    "comment": "",
                    "email": "gop_oc@pecny.cz",
                    "name": "GOP operation center",
                    "phone": "",
                    "role": "metadata_custodian",
                    "title": ""
                },
                "date_from": "2012-08-07 11:55:00",
                "date_to": "2013-06-24 20:40:00",
                "item_attributes": [
                    {
                        "attribute": {
                            "name": "receiver_type"
                        },
                        "date_from": "2012-08-07 11:55:00",
                        "date_to": "2013-06-24 20:40:00",
                        "value_date": null,
                        "value_numeric": null,
                        "value_varchar": "LEICA GRX1200+GNSS"
                    },
                    {
                        "attribute": {
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                        "date_to": "2013-06-24 20:40:00",
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                    },
                    {
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                    },
                    {
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                    },
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                        "value_varchar": null
                    }
                ],
                "item_type": {
                    "name": "receiver"
                }
            }
        },
        {
            "item": {
                "comment": "air conditioning",
                "contact_as_owner": {
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                        "abbreviation": "RIGTC GOP",
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                    },
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        },
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