Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Estonian National Land Board via EuroGeographics; http://crs.bkg.bund.de/crs-eu/
Revision date: 2016-09-16
Scope: Geodesy, cadastre, engineering survey, topographic mapping.
Remarks: Replaces Estonia 1992 adjustment (code 6133).
Area of use: Estonia - onshore and offshore.
Definition: OGC Well Known Text
DATUM["Estonia_1997", SPHEROID["GRS 1980",6378137,298.257222101, AUTHORITY["EPSG","7019"]], AUTHORITY["EPSG","6180"]]
Definition: OGC Well Known Text 2 (2019)
DATUM["Estonia 1997", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ID["EPSG",6180]]
Definition: ESRI Well Known Text
DATUM["D_Estonia_1997", SPHEROID["GRS_1980",6378137.0,298.257222101]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Estonia 1997", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "scope": "Geodesy, cadastre, engineering survey, topographic mapping.", "area": "Estonia - onshore and offshore.", "bbox": { "south_latitude": 57.52, "west_longitude": 20.37, "north_latitude": 60, "east_longitude": 28.2 }, "id": { "authority": "EPSG", "code": 6180 } }