Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Latvijas Republikas Valsts zemes dienests (State Land Service of the Republic of Latvia) via EuroGeographics. http://crs.bkg.bund.de/crs-eu/
Revision date: 2016-09-16
Scope: Geodesy, topographic mapping.
Remarks: Densification of ETRS89 during the 1992 Baltic campaign.
Area of use: Latvia - onshore and offshore.
Definition: OGC Well Known Text
DATUM["Latvia_1992", SPHEROID["GRS 1980",6378137,298.257222101, AUTHORITY["EPSG","7019"]], AUTHORITY["EPSG","6661"]]
Definition: OGC Well Known Text 2 (2019)
DATUM["Latvia 1992", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ID["EPSG",6661]]
Definition: ESRI Well Known Text
DATUM["D_Latvia_1992", SPHEROID["GRS_1980",6378137.0,298.257222101]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Latvia 1992", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "scope": "Geodesy, topographic mapping.", "area": "Latvia - onshore and offshore.", "bbox": { "south_latitude": 55.67, "west_longitude": 19.06, "north_latitude": 58.09, "east_longitude": 28.24 }, "id": { "authority": "EPSG", "code": 6661 } }