EPSG:3989 - Katanga 1955 / Katanga Gauss zone D

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "Katanga 1955 / Katanga Gauss zone D",
  "base_crs": {
    "name": "Katanga 1955",
    "datum": {
      "type": "GeodeticReferenceFrame",
      "name": "Katanga 1955",
      "ellipsoid": {
        "name": "Clarke 1866",
        "semi_major_axis": 6378206.4,
        "semi_minor_axis": 6356583.8
      }
    },
    "coordinate_system": {
      "subtype": "ellipsoidal",
      "axis": [
        {
          "name": "Geodetic latitude",
          "abbreviation": "Lat",
          "direction": "north",
          "unit": "degree"
        },
        {
          "name": "Geodetic longitude",
          "abbreviation": "Lon",
          "direction": "east",
          "unit": "degree"
        }
      ]
    },
    "id": {
      "authority": "EPSG",
      "code": 4695
    }
  },
  "conversion": {
    "name": "Katanga Gauss zone D",
    "method": {
      "name": "Transverse Mercator",
      "id": {
        "authority": "EPSG",
        "code": 9807
      }
    },
    "parameters": [
      {
        "name": "Latitude of natural origin",
        "value": -9,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8801
        }
      },
      {
        "name": "Longitude of natural origin",
        "value": 24,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8802
        }
      },
      {
        "name": "Scale factor at natural origin",
        "value": 1,
        "unit": "unity",
        "id": {
          "authority": "EPSG",
          "code": 8805
        }
      },
      {
        "name": "False easting",
        "value": 200000,
        "unit": "metre",
        "id": {
          "authority": "EPSG",
          "code": 8806
        }
      },
      {
        "name": "False northing",
        "value": 500000,
        "unit": "metre",
        "id": {
          "authority": "EPSG",
          "code": 8807
        }
      }
    ]
  },
  "coordinate_system": {
    "subtype": "Cartesian",
    "axis": [
      {
        "name": "Easting",
        "abbreviation": "X",
        "direction": "east",
        "unit": "metre"
      },
      {
        "name": "Northing",
        "abbreviation": "Y",
        "direction": "north",
        "unit": "metre"
      }
    ]
  },
  "scope": "Cadastre, engineering survey.",
  "area": "The Democratic Republic of the Congo (Zaire) - Katanga west of 25°30'E.",
  "bbox": {
    "south_latitude": -11.72,
    "west_longitude": 21.74,
    "north_latitude": -6.32,
    "east_longitude": 25.51
  },
  "id": {
    "authority": "EPSG",
    "code": 3989
  }
}

{'crs_wkt': 'PROJCRS["Katanga 1955 / Katanga Gauss zone '
            'D",BASEGEOGCRS["Katanga 1955",DATUM["Katanga '
            '1955",ELLIPSOID["Clarke '
            '1866",6378206.4,294.978698213898,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4695]],CONVERSION["Katanga '
            'Gauss zone D",METHOD["Transverse '
            'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
            'origin",-9,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
            'of natural '
            'origin",24,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
            'factor at natural '
            'origin",1,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
            'easting",200000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False '
            'northing",500000,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["easting '
            '(X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing '
            '(Y)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Cadastre, '
            'engineering survey."],AREA["The Democratic Republic of the Congo '
            '(Zaire) - Katanga west of '
            '25°30\'E."],BBOX[-11.72,21.74,-6.32,25.51]],ID["EPSG",3989]]',
 'false_easting': 200000.0,
 'false_northing': 500000.0,
 'geographic_crs_name': 'Katanga 1955',
 'grid_mapping_name': 'transverse_mercator',
 'horizontal_datum_name': 'Katanga 1955',
 'inverse_flattening': 294.9786982138982,
 'latitude_of_projection_origin': -9.0,
 'longitude_of_central_meridian': 24.0,
 'longitude_of_prime_meridian': 0.0,
 'prime_meridian_name': 'Greenwich',
 'projected_crs_name': 'Katanga 1955 / Katanga Gauss zone D',
 'reference_ellipsoid_name': 'Clarke 1866',
 'scale_factor_at_central_meridian': 1.0,
 'semi_major_axis': 6378206.4,
 'semi_minor_axis': 6356583.8}