{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"ProjectedCRS","name":"Kertau 1968 / Singapore Grid","base_crs":{"type":"GeographicCRS","name":"Kertau 1968","datum":{"type":"GeodeticReferenceFrame","name":"Kertau 1968","ellipsoid":{"name":"Everest 1830 Modified","semi_major_axis":6377304.063,"inverse_flattening":300.8017}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"id":{"authority":"EPSG","code":4245},"remarks":"Not used for metrication of RSO grid - see Kertau (RSO) (CRS code 4751). Replaced by GDM2000 (CRS code 4742)."},"conversion":{"name":"Singapore Grid","method":{"name":"Cassini-Soldner","id":{"authority":"EPSG","code":9806}},"parameters":[{"name":"Latitude of natural origin","value":1.28764666666667,"unit":"degree","id":{"authority":"EPSG","code":8801}},{"name":"Longitude of natural origin","value":103.853002222222,"unit":"degree","id":{"authority":"EPSG","code":8802}},{"name":"False easting","value":30000,"unit":"metre","id":{"authority":"EPSG","code":8806}},{"name":"False northing","value":30000,"unit":"metre","id":{"authority":"EPSG","code":8807}}]},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Easting","abbreviation":"E","direction":"east","unit":"metre"},{"name":"Northing","abbreviation":"N","direction":"north","unit":"metre"}]},"scope":"Engineering survey, topographic mapping.","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":24500}}