Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: National Center for Geodesy and Spatial Information, https://qazgeodesy.kz/ and decree number 17-1-03/675 of .2025-06-25.
Revision date: 2025-07-10
Scope: Geodesy.
Area of use: Kazakhstan - onshore and offshore, including Caspian Sea.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Kazakhstan Terrestrial Reference Frame 2023", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "scope": "Geodesy.", "area": "Kazakhstan - onshore and offshore, including Caspian Sea.", "bbox": { "south_latitude": 40.59, "west_longitude": 46.49, "north_latitude": 55.45, "east_longitude": 87.35 }, "id": { "authority": "EPSG", "code": 1417 } }