IGNF:CSG67UTM21.GUYA77 - CSG67 UTM Nord fuseau 21 et NIVELLEMENT GENERAL DE GUYANE (NGG) 1977

Attributes


Unit

metre

Scope

LOCALE, HISTORIQUE

Remarks

None

Area of use

GUYANE FRANCAISE - UTM NORD FUSEAU 21

Data Source: EPSG v11.016 2024-08-31

Datum: Centre Spatial Guyanais 1967

Coordinate System: Undefined

Projection: Undefined

Geodetic CRS: Undefined

Export

COMPOUNDCRS["CSG67 UTM Nord fuseau 21 et NIVELLEMENT GENERAL DE GUYANE (NGG) 1977",
    PROJCRS["CSG67 UTM Nord fuseau 21",
        BASEGEOGCRS["CSG67 geographiques (dms)",
            DATUM["Centre Spatial Guyanais 1967",
                ELLIPSOID["International 1924",6378388,297,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            ID["IGNF","CSG67G"]],
        CONVERSION["UTM NORD FUSEAU 21",
            METHOD["Transverse Mercator",
                ID["EPSG",9807]],
            PARAMETER["Latitude of natural origin",0,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8801]],
            PARAMETER["Longitude of natural origin",-57,
                ANGLEUNIT["degree",0.0174532925199433],
                ID["EPSG",8802]],
            PARAMETER["Scale factor at natural origin",0.9996,
                SCALEUNIT["unity",1],
                ID["EPSG",8805]],
            PARAMETER["False easting",500000,
                LENGTHUNIT["metre",1],
                ID["EPSG",8806]],
            PARAMETER["False northing",0,
                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]]],
    VERTCRS["NIVELLEMENT GENERAL DE GUYANE (NGG) 1977",
        VDATUM["NIVELLEMENT GENERAL DE GUYANE (NGG) 1977"],
        CS[vertical,1],
            AXIS["gravity-related height (H)",up,
                LENGTHUNIT["metre",1]]],
    USAGE[
        SCOPE["LOCALE, HISTORIQUE"],
        AREA["GUYANE FRANCAISE - UTM NORD FUSEAU 21"],
        BBOX[2.05,-54.95,5.95,-54]],
    ID["IGNF","CSG67UTM21.GUYA77"]]
{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "CompoundCRS",
  "name": "CSG67 UTM Nord fuseau 21 et NIVELLEMENT GENERAL DE GUYANE (NGG) 1977",
  "components": [
    {
      "type": "ProjectedCRS",
      "name": "CSG67 UTM Nord fuseau 21",
      "base_crs": {
        "name": "CSG67 geographiques (dms)",
        "datum": {
          "type": "GeodeticReferenceFrame",
          "name": "Centre Spatial Guyanais 1967",
          "ellipsoid": {
            "name": "International 1924",
            "semi_major_axis": 6378388,
            "inverse_flattening": 297
          }
        },
        "coordinate_system": {
          "subtype": "ellipsoidal",
          "axis": [
            {
              "name": "Geodetic longitude",
              "abbreviation": "Lon",
              "direction": "east",
              "unit": "degree"
            },
            {
              "name": "Geodetic latitude",
              "abbreviation": "Lat",
              "direction": "north",
              "unit": "degree"
            }
          ]
        },
        "id": {
          "authority": "IGNF",
          "code": "CSG67G"
        }
      },
      "conversion": {
        "name": "UTM NORD FUSEAU 21",
        "method": {
          "name": "Transverse Mercator",
          "id": {
            "authority": "EPSG",
            "code": 9807
          }
        },
        "parameters": [
          {
            "name": "Latitude of natural origin",
            "value": 0,
            "unit": "degree",
            "id": {
              "authority": "EPSG",
              "code": 8801
            }
          },
          {
            "name": "Longitude of natural origin",
            "value": -57,
            "unit": "degree",
            "id": {
              "authority": "EPSG",
              "code": 8802
            }
          },
          {
            "name": "Scale factor at natural origin",
            "value": 0.9996,
            "unit": "unity",
            "id": {
              "authority": "EPSG",
              "code": 8805
            }
          },
          {
            "name": "False easting",
            "value": 500000,
            "unit": "metre",
            "id": {
              "authority": "EPSG",
              "code": 8806
            }
          },
          {
            "name": "False northing",
            "value": 0,
            "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"
          }
        ]
      }
    },
    {
      "type": "VerticalCRS",
      "name": "NIVELLEMENT GENERAL DE GUYANE (NGG) 1977",
      "datum": {
        "type": "VerticalReferenceFrame",
        "name": "NIVELLEMENT GENERAL DE GUYANE (NGG) 1977"
      },
      "coordinate_system": {
        "subtype": "vertical",
        "axis": [
          {
            "name": "Gravity-related height",
            "abbreviation": "H",
            "direction": "up",
            "unit": "metre"
          }
        ]
      }
    }
  ],
  "scope": "LOCALE, HISTORIQUE",
  "area": "GUYANE FRANCAISE - UTM NORD FUSEAU 21",
  "bbox": {
    "south_latitude": 2.05,
    "west_longitude": -54.95,
    "north_latitude": 5.95,
    "east_longitude": -54
  },
  "id": {
    "authority": "IGNF",
    "code": "CSG67UTM21.GUYA77"
  }
}
{'crs_wkt': 'COMPOUNDCRS["CSG67 UTM Nord fuseau 21 et NIVELLEMENT GENERAL DE '
            'GUYANE (NGG) 1977",PROJCRS["CSG67 UTM Nord fuseau '
            '21",BASEGEOGCRS["CSG67 geographiques (dms)",DATUM["Centre Spatial '
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            'GUYANE (NGG) 1977"],CS[vertical,1],AXIS["gravity-related height '
            '(H)",up,LENGTHUNIT["metre",1]]],USAGE[SCOPE["LOCALE, '
            'HISTORIQUE"],AREA["GUYANE FRANCAISE - UTM NORD FUSEAU '
            '21"],BBOX[2.05,-54.95,5.95,-54]],ID["IGNF","CSG67UTM21.GUYA77"]]',
 'false_easting': 500000.0,
 'false_northing': 0.0,
 'geographic_crs_name': 'CSG67 geographiques (dms)',
 'geopotential_datum_name': 'NIVELLEMENT GENERAL DE GUYANE (NGG) 1977',
 'grid_mapping_name': 'transverse_mercator',
 'horizontal_datum_name': 'Centre Spatial Guyanais 1967',
 'inverse_flattening': 297.0,
 'latitude_of_projection_origin': 0.0,
 'longitude_of_central_meridian': -57.0,
 'longitude_of_prime_meridian': 0.0,
 'prime_meridian_name': 'Greenwich',
 'projected_crs_name': 'CSG67 UTM Nord fuseau 21',
 'reference_ellipsoid_name': 'International 1924',
 'scale_factor_at_central_meridian': 0.9996,
 'semi_major_axis': 6378388.0,
 'semi_minor_axis': 6356911.9461279465}