{ "cdp_num": null, "comment": "The concrete GPS pillar is anchored on the roof\r\non the building of the Military Geographic\r\nService Observatory. 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"survey_method": "TRIANGULATION", "usage": "SLR" }, { "accuracy": 1, "comment": "EUREF-BG-1992", "cpd_num": null, "date_at": "1995-09-21 00:00:00", "dx": 8.2792, "dy": -42.3829, "dz": 9.3068, "iers_domes": null, "name": "Pillar 0556A", "survey_method": "TRIANGULATION", "usage": "GPS" } ], "location": { "city": "Sofia", "coordinates": { "X": 4319372.39, "Y": 1868687.57, "Z": 4292063.8, "altitude": 1119.6, "lat": 42.5560925322051, "lon": 23.394728843671874 }, "country": "Bulgaria", "country_iso_code": "BGR", "description": "", "state": "", "tectonic": { "plate_name": "EURASIAN" } }, "logs": { "contact": "GOW Operator (gnss_wtz@bkg.bund.de)", "date": "2025-03-07 00:00:00", "log_type": "UPDATE", "modified": "UNAVAILABLE", "previous": "UNAVAILABLE", "title": "SOFI00BGR.xml" }, "marker": "SOFI", "monument": { "description": "CONCRETE PILLAR ON THE ROOF", "foundation": "CONCRETE PILLAR ANCHORED ON THE ROOF", "foundation_depth": null, "height": 0.9, "monument_inscription": null }, 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{ "attribute": { "name": "satellite_system" }, "date_from": "1997-05-19 10:00:00", "date_to": "1999-07-11 11:00:00", "value_date": null, "value_numeric": null, "value_varchar": "GPS" }, { "attribute": { "name": "firmware_version" }, "date_from": "1997-05-19 10:00:00", "date_to": "1999-07-11 11:00:00", "value_date": null, "value_numeric": null, "value_varchar": "3.2.32.4" }, { "attribute": { "name": "elevation_cutoff_setting" }, "date_from": "1997-05-19 10:00:00", "date_to": "1999-07-11 11:00:00", "value_date": null, "value_numeric": 0, "value_varchar": null }, { "attribute": { "name": "temperature_stabilization" }, "date_from": "1997-05-19 10:00:00", "date_to": "1999-07-11 11:00:00", "value_date": null, "value_numeric": null, "value_varchar": null } ], "item_type": { "name": "receiver" } } }, { "item": { "comment": null, "contact_as_owner": { "agency": { "abbreviation": "BKG", "address": "Richard-Strauss-Allee 11\nD-60598 Frankfurt a.M.\nGermany", "infos": "", "name": "Bundesamt fuer 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}, { "attribute": { "name": "satellite_system" }, "date_from": "2001-03-09 10:00:00", "date_to": "2005-06-06 12:00:00", "value_date": null, "value_numeric": null, "value_varchar": "GPS" }, { "attribute": { "name": "firmware_version" }, "date_from": "2001-03-09 10:00:00", "date_to": "2005-06-06 12:00:00", "value_date": null, "value_numeric": null, "value_varchar": "3.3.32.2" }, { "attribute": { "name": "elevation_cutoff_setting" }, "date_from": "2001-03-09 10:00:00", "date_to": "2005-06-06 12:00:00", "value_date": null, "value_numeric": 0, "value_varchar": null }, { "attribute": { "name": "temperature_stabilization" }, "date_from": "2001-03-09 10:00:00", "date_to": "2005-06-06 12:00:00", "value_date": null, "value_numeric": null, "value_varchar": null } ], "item_type": { "name": "receiver" } } }, { "item": { "comment": "Additional number LE 2130\r\non the type level.", "contact_as_owner": { "agency": { "abbreviation": "BKG", "address": "Richard-Strauss-Allee 11\nD-60598 Frankfurt a.M.\nGermany", "infos": "", "name": "Bundesamt fuer Kartographie und Geodaesie", "www": "" }, "comment": "", "email": "gnss_wtz@bkg.bund.de", "name": "GOW Operator", "phone": "+49 9941 6030", "role": "site_owner", "title": "" }, "contact_as_producer": { "agency": { "abbreviation": "BKG", "address": "Richard-Strauss-Allee 11\nD-60598 Frankfurt a.M.\nGermany", "infos": "", "name": "Bundesamt fuer Kartographie und Geodaesie", "www": "" }, "comment": "", "email": "gnss_wtz@bkg.bund.de", "name": "GOW Operator", "phone": "+49 9941 6030", "role": "metadata_custodian", "title": "" }, "date_from": "2005-06-06 12:00:00", "date_to": "2005-07-20 11:00:00", "item_attributes": [ { "attribute": { "name": "receiver_type" }, "date_from": "2005-06-06 12:00:00", "date_to": "2005-07-20 11:00:00", "value_date": null, "value_numeric": null, "value_varchar": "TPS E_GGD" }, { "attribute": { "name": "serial_number" }, "date_from": "2005-06-06 12:00:00", "date_to": "2005-07-20 11:00:00", "value_date": null, 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took\r\nplace.\r\n\/par\/lock\/notvis switched\r\nto 'on' for 'all in view'.", "contact_as_owner": { "agency": { "abbreviation": "BKG", "address": "Richard-Strauss-Allee 11\nD-60598 Frankfurt a.M.\nGermany", "infos": "", "name": "Bundesamt fuer Kartographie und Geodaesie", "www": "" }, "comment": "", "email": "gnss_wtz@bkg.bund.de", "name": "GOW Operator", "phone": "+49 9941 6030", "role": "site_owner", "title": "" }, "contact_as_producer": { "agency": { "abbreviation": "BKG", "address": "Richard-Strauss-Allee 11\nD-60598 Frankfurt a.M.\nGermany", "infos": "", "name": "Bundesamt fuer Kartographie und Geodaesie", "www": "" }, "comment": "", "email": "gnss_wtz@bkg.bund.de", "name": "GOW Operator", "phone": "+49 9941 6030", "role": "metadata_custodian", "title": "" }, "date_from": "2005-07-20 11:00:00", "date_to": "2007-11-09 08:00:00", "item_attributes": [ { "attribute": { "name": "receiver_type" }, "date_from": "2005-07-20 11:00:00", "date_to": "2007-11-09 08:00:00", "value_date": null, 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"value_varchar": null } ], "item_type": { "name": "receiver" } } }, { "item": { "comment": "Additional number LE4567\r\non the Type level.\r\n\/par\/lock\/notvis switched\r\nto 'on' for 'all in view'.", "contact_as_owner": { "agency": { "abbreviation": "BKG", "address": "Richard-Strauss-Allee 11\nD-60598 Frankfurt a.M.\nGermany", "infos": "", "name": "Bundesamt fuer Kartographie und Geodaesie", "www": "" }, "comment": "", "email": "gnss_wtz@bkg.bund.de", "name": "GOW Operator", "phone": "+49 9941 6030", "role": "site_owner", "title": "" }, "contact_as_producer": { "agency": { "abbreviation": "BKG", "address": "Richard-Strauss-Allee 11\nD-60598 Frankfurt a.M.\nGermany", "infos": "", "name": "Bundesamt fuer Kartographie und Geodaesie", "www": "" }, "comment": "", "email": "gnss_wtz@bkg.bund.de", "name": "GOW Operator", "phone": "+49 9941 6030", "role": "metadata_custodian", "title": "" }, "date_from": "2007-11-09 08:40:00", "date_to": "2008-01-17 16:14:00", "item_attributes": [ { 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