{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"GCS_ISTS_073_1969","datum":{"type":"GeodeticReferenceFrame","name":"D_ISTS_073_1969","ellipsoid":{"name":"International 1924","semi_major_axis":6378388,"inverse_flattening":297}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"scope":"Not known.","area":"British Indian Ocean Territory - Chagos Archipelago - Diego Garcia.","bbox":{"south_latitude":-7.49,"west_longitude":72.3,"north_latitude":-7.18,"east_longitude":72.55},"id":{"authority":"ESRI","code":37233}}