{ "cdp_num": null, "comment": "Height of pillar above roof is 4.4 m.\r\nHeight of point above ground is 11.6 m.", "conditions": [ { "comments": "2001-10-25\/2001-12-17 reduction obstructions\r\nin elevation angles between 10 and 25 degrees", "date_from": "1995-05-13 00:00:00", "date_to": "2001-12-17 00:00:00", "type": "signal_obstructions: TREES" }, { "comments": "2019-02-06\/2019-03-29 reduction obstructions \r\nin elevation angles between 5 and 15 degrees", "date_from": "2001-12-17 00:00:00", "date_to": "2019-03-29 00:00:00", "type": "signal_obstructions: TREES" } ], "country": "Czechia", "country_code_ISO": "CZE", "date_from": "1992-06-13 00:00:00", "date_to": null, "description": "CENTER OF HOLE IN STEEL PLATE", "geological": { "bedrock": { "condition": "WEATHERED", "type": "METAMORPHIC" }, "characteristic": "BEDROCK", "distance_to_fault": null, "fault_zone": "NO", "fracture_spacing": "51-200" }, "iers_domes": "11502M002", "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": "GWR OSG-050\r\nGGP station PE", "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", "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 GOPE (mark on the top of the concrete\r\npillar) i.e. dx = x (0209) - x (GOPE).", "cpd_num": null, "date_at": "1994-04-01 00:00:00", "dx": -65.9815, "dy": 84.6572, "dz": 33.1807, "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 GOPE (mark on the top of the concrete\r\npillar) i.e. dx = x (GOP6) - x (GOPE).\r\nDate measured is mean epoch - results are\r\naverage form 36 days of measurement.", "cpd_num": "GOP3", "date_at": "2008-02-24 00:00:00", "dx": 3.2001, "dy": -0.3343, "dz": -2.5319, "iers_domes": "11502M006", "name": "GOP6", "survey_method": "GPS CAMPAIGN", "usage": "EXCENTRIC PILLAR" }, { "accuracy": 1, "comment": "The vector is referred to the reference point\r\nof GOPE (mark on the top of the concrete\r\npillar) i.e. dx = x (GOP3) - x (GOPE).\r\nDate measured is mean epoch - results are\r\naverage form 24 days of measurement.", "cpd_num": "GOP4", "date_at": "2008-03-01 00:00:00", "dx": 2.0465, "dy": 2.5846, "dz": -2.1997, "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 GOPE (mark on the top of the concrete\r\npillar) i.e. dx = x (GOP5) - x (GOPE).\r\nDate measured is mean epoch - results are\r\naverage form 26 days of measurement.", "cpd_num": "GOP5", "date_at": "2008-03-02 00:00:00", "dx": 2.8196, "dy": 0.6237, "dz": -2.4174, "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 GOPE (mark on the top of the concrete\r\npillar) i.e. dx = x (GOP4) - x (GOPE).\r\nDate measured is mean epoch - results are\r\naverage form 44 days of measurement.", "cpd_num": "GOP6", "date_at": "2008-03-03 00:00:00", "dx": 2.4312, "dy": 1.6166, "dz": -2.3066, "iers_domes": "11502M004", "name": "GOP4", "survey_method": "GPS CAMPAIGN", "usage": "EXCENTRIC PILLAR for GNSS TIME receiver" } ], "location": { "city": "Ondrejov", "coordinates": { "X": 3979316.134, "Y": 1050312.478, "Z": 4857067.108, "altitude": 592.6, "lat": 49.91370466236822, "lon": 14.785622340225261 }, "country": "Czechia", "country_iso_code": "CZE", "description": "ITRF2005, epoch 001\/2005", "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": "GOPE00CZE.xml" }, "marker": "GOPE", "monument": { "description": "PILLAR ABOVE THE ROOF", "foundation": "ROOF OF BUILDING", "foundation_depth": 3.6, "height": 11.6, "monument_inscription": null }, 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