Ellipsoid: GSK-2011
Prime meridian: Greenwich
Data source: EPSG
Information source: Parametry Zemli 1990 Reference Document, Military Topgraphic Department (VTU) of the General Staff of Armed Forces of the Russian Federation.
Revision date: 2016-01-25
Scope: Geodesy.
Area of use: Russian Federation - onshore and offshore.
Definition: OGC Well Known Text
DATUM["Geodezicheskaya_Sistema_Koordinat_2011", SPHEROID["GSK-2011",6378136.5,298.2564151, AUTHORITY["EPSG","1025"]], AUTHORITY["EPSG","1159"]]
Definition: OGC Well Known Text 2 (2019)
DATUM["Geodezicheskaya Sistema Koordinat 2011", ELLIPSOID["GSK-2011",6378136.5,298.2564151, LENGTHUNIT["metre",1]], ID["EPSG",1159]]
Definition: ESRI Well Known Text
DATUM["Geodezicheskaya_Sistema_Koordinat_2011", SPHEROID["GSK-2011",6378136.5,298.2564151]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Geodezicheskaya Sistema Koordinat 2011", "ellipsoid": { "name": "GSK-2011", "semi_major_axis": 6378136.5, "inverse_flattening": 298.2564151 }, "scope": "Geodesy.", "area": "Russian Federation - onshore and offshore.", "bbox": { "south_latitude": 39.87, "west_longitude": 18.92, "north_latitude": 85.19, "east_longitude": -168.97 }, "id": { "authority": "EPSG", "code": 1159 } }