EPSG:29381 - Hooray!

Attributes

Unit

German legal metre

Scope

Cadastre, engineering survey, topographic mapping (large and medium scale).

Remarks

None

Area of use

Namibia - between 20°E and 22°E.

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

Datum: Schwarzeck

Coordinate System: cartesian

Projection: South West African Survey Grid zone 21

Geodetic CRS: Schwarzeck

Export

PROJCRS["Schwarzeck / Lo22/21",
    BASEGEOGCRS["Schwarzeck",
        DATUM["Schwarzeck",
            ELLIPSOID["Bessel Namibia (GLM)",6377397.155,299.1528128,
                LENGTHUNIT["German legal metre",1.0000135965]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4293]],
    CONVERSION["South West African Survey Grid zone 21",
        METHOD["Transverse Mercator (South Orientated)",
            ID["EPSG",9808]],
        PARAMETER["Latitude of natural origin",-22,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",21,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",1,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",0,
            LENGTHUNIT["German legal metre",1.0000135965],
            ID["EPSG",8806]],
        PARAMETER["False northing",0,
            LENGTHUNIT["German legal metre",1.0000135965],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["westing (Y)",west,
            ORDER[1],
            LENGTHUNIT["German legal metre",1.0000135965]],
        AXIS["southing (X)",south,
            ORDER[2],
            LENGTHUNIT["German legal metre",1.0000135965]],
    USAGE[
        SCOPE["Cadastre, engineering survey, topographic mapping (large and medium scale)."],
        AREA["Namibia - between 20°E and 22°E."],
        BBOX[-22.01,19.99,-17.85,22]],
    ID["EPSG",29381]]

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "Schwarzeck / Lo22/21",
  "base_crs": {
    "name": "Schwarzeck",
    "datum": {
      "type": "GeodeticReferenceFrame",
      "name": "Schwarzeck",
      "ellipsoid": {
        "name": "Bessel Namibia (GLM)",
        "semi_major_axis": {
          "value": 6377397.155,
          "unit": {
            "type": "LinearUnit",
            "name": "German legal metre",
            "conversion_factor": 1.0000135965
          }
        },
        "inverse_flattening": 299.1528128
      }
    },
    "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": 4293
    }
  },
  "conversion": {
    "name": "South West African Survey Grid zone 21",
    "method": {
      "name": "Transverse Mercator (South Orientated)",
      "id": {
        "authority": "EPSG",
        "code": 9808
      }
    },
    "parameters": [
      {
        "name": "Latitude of natural origin",
        "value": -22,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8801
        }
      },
      {
        "name": "Longitude of natural origin",
        "value": 21,
        "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": 0,
        "unit": {
          "type": "LinearUnit",
          "name": "German legal metre",
          "conversion_factor": 1.0000135965
        },
        "id": {
          "authority": "EPSG",
          "code": 8806
        }
      },
      {
        "name": "False northing",
        "value": 0,
        "unit": {
          "type": "LinearUnit",
          "name": "German legal metre",
          "conversion_factor": 1.0000135965
        },
        "id": {
          "authority": "EPSG",
          "code": 8807
        }
      }
    ]
  },
  "coordinate_system": {
    "subtype": "Cartesian",
    "axis": [
      {
        "name": "Westing",
        "abbreviation": "Y",
        "direction": "west",
        "unit": {
          "type": "LinearUnit",
          "name": "German legal metre",
          "conversion_factor": 1.0000135965
        }
      },
      {
        "name": "Southing",
        "abbreviation": "X",
        "direction": "south",
        "unit": {
          "type": "LinearUnit",
          "name": "German legal metre",
          "conversion_factor": 1.0000135965
        }
      }
    ]
  },
  "scope": "Cadastre, engineering survey, topographic mapping (large and medium scale).",
  "area": "Namibia - between 20°E and 22°E.",
  "bbox": {
    "south_latitude": -22.01,
    "west_longitude": 19.99,
    "north_latitude": -17.85,
    "east_longitude": 22
  },
  "id": {
    "authority": "EPSG",
    "code": 29381
  }
}