EPSG:4712 - Ascension Island 1958

Attributes

Unit

degree

Scope

Military survey.

Remarks

None

Area of use

St Helena, Ascension and Tristan da Cunha - Ascension Island - onshore.

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

Datum: Ascension Island 1958

Coordinate System: ellipsoidal

Projection: Undefined

Geodetic CRS: Undefined

Export

GEOGCRS["Ascension Island 1958",
    DATUM["Ascension Island 1958",
        ELLIPSOID["International 1924",6378388,297,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Greenwich",0,
        ANGLEUNIT["degree",0.0174532925199433]],
    CS[ellipsoidal,2],
        AXIS["geodetic latitude (Lat)",north,
            ORDER[1],
            ANGLEUNIT["degree",0.0174532925199433]],
        AXIS["geodetic longitude (Lon)",east,
            ORDER[2],
            ANGLEUNIT["degree",0.0174532925199433]],
    USAGE[
        SCOPE["Military survey."],
        AREA["St Helena, Ascension and Tristan da Cunha - Ascension Island - onshore."],
        BBOX[-8.03,-14.46,-7.83,-14.24]],
    ID["EPSG",4712]]
{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "GeographicCRS",
  "name": "Ascension Island 1958",
  "datum": {
    "type": "GeodeticReferenceFrame",
    "name": "Ascension Island 1958",
    "ellipsoid": {
      "name": "International 1924",
      "semi_major_axis": 6378388,
      "inverse_flattening": 297
    }
  },
  "coordinate_system": {
    "subtype": "ellipsoidal",
    "axis": [
      {
        "name": "Geodetic latitude",
        "abbreviation": "Lat",
        "direction": "north",
        "unit": "degree"
      },
      {
        "name": "Geodetic longitude",
        "abbreviation": "Lon",
        "direction": "east",
        "unit": "degree"
      }
    ]
  },
  "scope": "Military survey.",
  "area": "St Helena, Ascension and Tristan da Cunha - Ascension Island - onshore.",
  "bbox": {
    "south_latitude": -8.03,
    "west_longitude": -14.46,
    "north_latitude": -7.83,
    "east_longitude": -14.24
  },
  "id": {
    "authority": "EPSG",
    "code": 4712
  }
}
{'crs_wkt': 'GEOGCRS["Ascension Island 1958",DATUM["Ascension Island '
            '1958",ELLIPSOID["International '
            '1924",6378388,297,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic '
            'latitude '
            '(Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic '
            'longitude '
            '(Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],USAGE[SCOPE["Military '
            'survey."],AREA["St Helena, Ascension and Tristan da Cunha - '
            'Ascension Island - '
            'onshore."],BBOX[-8.03,-14.46,-7.83,-14.24]],ID["EPSG",4712]]',
 'geographic_crs_name': 'Ascension Island 1958',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'Ascension Island 1958',
 'inverse_flattening': 297.0,
 'longitude_of_prime_meridian': 0.0,
 'prime_meridian_name': 'Greenwich',
 'reference_ellipsoid_name': 'International 1924',
 'semi_major_axis': 6378388.0,
 'semi_minor_axis': 6356911.9461279465}