IGNF:RGM04GEODD - RGM04 geographiques (dd)

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "GeographicCRS",
  "name": "RGM04 geographiques (dd)",
  "datum": {
    "type": "GeodeticReferenceFrame",
    "name": "Reseau Geodesique de Mayotte 2004",
    "ellipsoid": {
      "name": "GRS 1980",
      "semi_major_axis": 6378137,
      "inverse_flattening": 298.257222101
    }
  },
  "coordinate_system": {
    "subtype": "ellipsoidal",
    "axis": [
      {
        "name": "Geodetic longitude",
        "abbreviation": "Lon",
        "direction": "east",
        "unit": "degree"
      },
      {
        "name": "Geodetic latitude",
        "abbreviation": "Lat",
        "direction": "north",
        "unit": "degree"
      },
      {
        "name": "Ellipsoidal height",
        "abbreviation": "h",
        "direction": "up",
        "unit": "metre"
      }
    ]
  },
  "scope": "NATIONALE A CARACTERE LEGAL",
  "area": "ILE DE MAYOTTE",
  "bbox": {
    "south_latitude": -13.05,
    "west_longitude": 44.95,
    "north_latitude": -12.5,
    "east_longitude": 45.4
  },
  "id": {
    "authority": "IGNF",
    "code": "RGM04GEODD"
  }
}

{'crs_wkt': 'GEOGCRS["RGM04 geographiques (dd)",DATUM["Reseau Geodesique de '
            'Mayotte 2004",ELLIPSOID["GRS '
            '1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,3],AXIS["geodetic '
            'longitude '
            '(Lon)",east,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic '
            'latitude '
            '(Lat)",north,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],AXIS["ellipsoidal '
            'height '
            '(h)",up,ORDER[3],LENGTHUNIT["metre",1]],USAGE[SCOPE["NATIONALE A '
            'CARACTERE LEGAL"],AREA["ILE DE '
            'MAYOTTE"],BBOX[-13.05,44.95,-12.5,45.4]],ID["IGNF","RGM04GEODD"]]',
 'geographic_crs_name': 'RGM04 geographiques (dd)',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'Reseau Geodesique de Mayotte 2004',
 'inverse_flattening': 298.257222101,
 'longitude_of_prime_meridian': 0.0,
 'prime_meridian_name': 'Greenwich',
 'reference_ellipsoid_name': 'GRS 1980',
 'semi_major_axis': 6378137.0,
 'semi_minor_axis': 6356752.314140356}