IGNF:RRAFG.GUAD88SM - RRAF geographiques (dms) et IGN 1988 SM (GUADELOUPE / SAINT-MARTIN)

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "CompoundCRS",
  "name": "RRAF geographiques (dms) et IGN 1988 SM (GUADELOUPE / SAINT-MARTIN)",
  "components": [
    {
      "type": "GeographicCRS",
      "name": "RRAF geographiques (dms)",
      "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Reseau de Reference des Antilles Francaises 1991",
        "ellipsoid": {
          "name": "WGS 84",
          "semi_major_axis": 6378137,
          "inverse_flattening": 298.257223563
        }
      },
      "coordinate_system": {
        "subtype": "ellipsoidal",
        "axis": [
          {
            "name": "Geodetic longitude",
            "abbreviation": "Lon",
            "direction": "east",
            "unit": "degree"
          },
          {
            "name": "Geodetic latitude",
            "abbreviation": "Lat",
            "direction": "north",
            "unit": "degree"
          }
        ]
      }
    },
    {
      "type": "VerticalCRS",
      "name": "IGN 1988 SM (GUADELOUPE / SAINT-MARTIN)",
      "datum": {
        "type": "VerticalReferenceFrame",
        "name": "IGN 1988 SM (GUADELOUPE / SAINT-MARTIN)"
      },
      "coordinate_system": {
        "subtype": "vertical",
        "axis": [
          {
            "name": "Gravity-related height",
            "abbreviation": "H",
            "direction": "up",
            "unit": "metre"
          }
        ]
      }
    }
  ],
  "scope": "LOCALE A CARACTERE LEGAL",
  "area": "ILE DE SAINT-MARTIN (GUADELOUPE)",
  "bbox": {
    "south_latitude": 18,
    "west_longitude": -63.2,
    "north_latitude": 18.2,
    "east_longitude": -62.5
  },
  "id": {
    "authority": "IGNF",
    "code": "RRAFG.GUAD88SM"
  }
}

{'crs_wkt': 'COMPOUNDCRS["RRAF geographiques (dms) et IGN 1988 SM (GUADELOUPE '
            '/ SAINT-MARTIN)",GEOGCRS["RRAF geographiques (dms)",DATUM["Reseau '
            'de Reference des Antilles Francaises 1991",ELLIPSOID["WGS '
            '84",6378137,298.257223563,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic '
            'longitude '
            '(Lon)",east,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic '
            'latitude '
            '(Lat)",north,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]]],VERTCRS["IGN '
            '1988 SM (GUADELOUPE / SAINT-MARTIN)",VDATUM["IGN 1988 SM '
            '(GUADELOUPE / '
            'SAINT-MARTIN)"],CS[vertical,1],AXIS["gravity-related height '
            '(H)",up,LENGTHUNIT["metre",1]]],USAGE[SCOPE["LOCALE A CARACTERE '
            'LEGAL"],AREA["ILE DE SAINT-MARTIN '
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 'geographic_crs_name': 'RRAF geographiques (dms)',
 'geopotential_datum_name': 'IGN 1988 SM (GUADELOUPE / SAINT-MARTIN)',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'Reseau de Reference des Antilles Francaises 1991',
 'inverse_flattening': 298.257223563,
 'longitude_of_prime_meridian': 0.0,
 'prime_meridian_name': 'Greenwich',
 'reference_ellipsoid_name': 'WGS 84',
 'semi_major_axis': 6378137.0,
 'semi_minor_axis': 6356752.314245179}