Cadastre.
Replaces Kertau 1968 for cadastral purposes from August 2004.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "SVY21", "ellipsoid": { "name": "WGS 84", "semi_major_axis": 6378137, "inverse_flattening": 298.257223563 }, "scope": "Cadastre.", "area": "Singapore - onshore and offshore.", "bbox": { "south_latitude": 1.13, "west_longitude": 103.59, "north_latitude": 1.47, "east_longitude": 104.07 }, "id": { "authority": "EPSG", "code": 6757 } }