EPSG:4991 - Lao 1993

Attributes

Unit

degree

Scope

Geodesy.

Remarks

None

Area of use

Laos.

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

Datum: Lao 1993

Coordinate System: ellipsoidal

Projection: Undefined

Geodetic CRS: Undefined

Export

GEOGCRS["Lao 1993",
    DATUM["Lao 1993",
        ELLIPSOID["Krassowsky 1940",6378245,298.3,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Greenwich",0,
        ANGLEUNIT["degree",0.0174532925199433]],
    CS[ellipsoidal,3],
        AXIS["geodetic latitude (Lat)",north,
            ORDER[1],
            ANGLEUNIT["degree",0.0174532925199433]],
        AXIS["geodetic longitude (Lon)",east,
            ORDER[2],
            ANGLEUNIT["degree",0.0174532925199433]],
        AXIS["ellipsoidal height (h)",up,
            ORDER[3],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Geodesy."],
        AREA["Laos."],
        BBOX[13.92,100.09,22.5,107.64]],
    ID["EPSG",4991]]
{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "GeographicCRS",
  "name": "Lao 1993",
  "datum": {
    "type": "GeodeticReferenceFrame",
    "name": "Lao 1993",
    "ellipsoid": {
      "name": "Krassowsky 1940",
      "semi_major_axis": 6378245,
      "inverse_flattening": 298.3
    }
  },
  "coordinate_system": {
    "subtype": "ellipsoidal",
    "axis": [
      {
        "name": "Geodetic latitude",
        "abbreviation": "Lat",
        "direction": "north",
        "unit": "degree"
      },
      {
        "name": "Geodetic longitude",
        "abbreviation": "Lon",
        "direction": "east",
        "unit": "degree"
      },
      {
        "name": "Ellipsoidal height",
        "abbreviation": "h",
        "direction": "up",
        "unit": "metre"
      }
    ]
  },
  "scope": "Geodesy.",
  "area": "Laos.",
  "bbox": {
    "south_latitude": 13.92,
    "west_longitude": 100.09,
    "north_latitude": 22.5,
    "east_longitude": 107.64
  },
  "id": {
    "authority": "EPSG",
    "code": 4991
  }
}
{'crs_wkt': 'GEOGCRS["Lao 1993",DATUM["Lao 1993",ELLIPSOID["Krassowsky '
            '1940",6378245,298.3,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,3],AXIS["geodetic '
            'latitude '
            '(Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic '
            'longitude '
            '(Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],AXIS["ellipsoidal '
            'height '
            '(h)",up,ORDER[3],LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy."],AREA["Laos."],BBOX[13.92,100.09,22.5,107.64]],ID["EPSG",4991]]',
 'geographic_crs_name': 'Lao 1993',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'Lao 1993',
 'inverse_flattening': 298.3,
 'longitude_of_prime_meridian': 0.0,
 'prime_meridian_name': 'Greenwich',
 'reference_ellipsoid_name': 'Krassowsky 1940',
 'semi_major_axis': 6378245.0,
 'semi_minor_axis': 6356863.018773047}