Geodesy, cadastre, engineering survey, topographic mapping.
Replaces RT38 adjustment (datum code 6308)
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "Rikets koordinatsystem 1990", "ellipsoid": { "name": "Bessel 1841", "semi_major_axis": 6377397.155, "inverse_flattening": 299.1528128 }, "scope": "Geodesy, cadastre, engineering survey, topographic mapping.", "area": "Sweden - onshore and offshore.", "bbox": { "south_latitude": 54.96, "west_longitude": 10.03, "north_latitude": 69.07, "east_longitude": 24.17 }, "id": { "authority": "EPSG", "code": 6124 } }