EPSG:1073

DATUM["Reseau_Geodesique_des_Antilles_Francaises_2009",
    SPHEROID["GRS 1980",6378137,298.257222101,
        AUTHORITY["EPSG","7019"]],
    AUTHORITY["EPSG","1073"]]

DATUM["Reseau Geodesique des Antilles Francaises 2009",
    ELLIPSOID["GRS 1980",6378137,298.257222101,
        LENGTHUNIT["metre",1]],
    ID["EPSG",1073]]

DATUM["Reseau_Geodesique_des_Antilles_Francaises_2009",
    SPHEROID["GRS_1980",6378137.0,298.257222101]]

{
    "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "Reseau Geodesique des Antilles Francaises 2009",
    "ellipsoid": {
        "name": "GRS 1980",
        "semi_major_axis": 6378137,
        "inverse_flattening": 298.257222101
    },
    "scope": "Geodesy, cadastre, engineering survey, topographic mapping.",
    "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": 18.53,
        "east_longitude": -57.52
    },
    "id": {
        "authority": "EPSG",
        "code": 1073
    }
}