{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","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"}]},"scope":"Geodesy.","area":"Malaysia - West Malaysia onshore and offshore east coast; Singapore - onshore and offshore.","bbox":{"south_latitude":1.13,"west_longitude":99.59,"north_latitude":7.81,"east_longitude":105.82},"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)."}