{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"GCS_Tristan_1968","datum":{"type":"GeodeticReferenceFrame","name":"D_Tristan_1968","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":"St Helena, Ascension and Tristan da Cunha - Tristan da Cunha island group including Tristan, Inaccessible, Nightingale, Middle and Stoltenhoff Islands.","bbox":{"south_latitude":-40.42,"west_longitude":-12.76,"north_latitude":-37,"east_longitude":-9.8},"id":{"authority":"ESRI","code":37251}}