{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"St. Helena Tritan","datum":{"type":"GeodeticReferenceFrame","name":"St. Helena Tritan","ellipsoid":{"name":"WGS 84","semi_major_axis":6378137,"inverse_flattening":298.257223563}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"scope":"Horizontal component of 3D system.","area":"St Helena, Ascension and Tristan da Cunha - St Helena Island - onshore.","bbox":{"south_latitude":-16.08,"west_longitude":-5.85,"north_latitude":-15.85,"east_longitude":-5.59},"id":{"authority":"EPSG","code":7881},"remarks":"Replaced by SHGD2015 (CRS code 7886) from 2015."}