{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"RGAF09","datum":{"type":"GeodeticReferenceFrame","name":"Reseau Geodesique des Antilles Francaises 2009","ellipsoid":{"name":"GRS 1980","semi_major_axis":6378137,"inverse_flattening":298.257222101}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"},{"name":"Ellipsoidal height","abbreviation":"h","direction":"up","unit":"metre"}]},"scope":"Geodesy; air, land and sea navigation and safety of life purposes.","area":"French Antilles onshore and offshore - Guadeloupe (including Grande Terre, Basse Terre, Marie Galante, Les Saintes, Iles de la Petite Terre, La Desirade); Martinique; St Barthélemy; St Martin.","bbox":{"south_latitude":14.08,"west_longitude":-63.66,"north_latitude":18.54,"east_longitude":-57.52},"id":{"authority":"EPSG","code":5488},"remarks":"Replaces RRAF 1991 (CRS code 4557). See CRS code 7085 for alternate system with horizontal axes reversed used by IGN for GIS purposes."}