EPSG:3366 - Hooray!

Attributes

Unit

metre

Scope

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

Remarks

None

Area of use

China - Hong Kong - onshore and offshore.

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

Datum: Hong Kong 1963

Coordinate System: cartesian

Projection: Hong Kong 1963 Grid

Geodetic CRS: Hong Kong 1963

Export

PROJCRS["Hong Kong 1963 Grid System",
    BASEGEOGCRS["Hong Kong 1963",
        DATUM["Hong Kong 1963",
            ELLIPSOID["Clarke 1858",20926348,294.260676369261,
                LENGTHUNIT["Clarke's foot",0.3047972654]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4738]],
    CONVERSION["Hong Kong 1963 Grid",
        METHOD["Cassini-Soldner",
            ID["EPSG",9806]],
        PARAMETER["Latitude of natural origin",22.3121333333333,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",114.178555555556,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["False easting",132033.92,
            LENGTHUNIT["Clarke's foot",0.3047972654],
            ID["EPSG",8806]],
        PARAMETER["False northing",62565.96,
            LENGTHUNIT["Clarke's foot",0.3047972654],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["northing (N)",north,
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["easting (E)",east,
            ORDER[2],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Cadastre, engineering survey, topographic mapping (large scale)."],
        AREA["China - Hong Kong - onshore and offshore."],
        BBOX[22.13,113.76,22.58,114.51]],
    ID["EPSG",3366]]

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "Hong Kong 1963 Grid System",
  "base_crs": {
    "name": "Hong Kong 1963",
    "datum": {
      "type": "GeodeticReferenceFrame",
      "name": "Hong Kong 1963",
      "ellipsoid": {
        "name": "Clarke 1858",
        "semi_major_axis": {
          "value": 20926348,
          "unit": {
            "type": "LinearUnit",
            "name": "Clarke's foot",
            "conversion_factor": 0.3047972654
          }
        },
        "semi_minor_axis": {
          "value": 20855233,
          "unit": {
            "type": "LinearUnit",
            "name": "Clarke's foot",
            "conversion_factor": 0.3047972654
          }
        }
      }
    },
    "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": 4738
    }
  },
  "conversion": {
    "name": "Hong Kong 1963 Grid",
    "method": {
      "name": "Cassini-Soldner",
      "id": {
        "authority": "EPSG",
        "code": 9806
      }
    },
    "parameters": [
      {
        "name": "Latitude of natural origin",
        "value": 22.3121333333333,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8801
        }
      },
      {
        "name": "Longitude of natural origin",
        "value": 114.178555555556,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8802
        }
      },
      {
        "name": "False easting",
        "value": 132033.92,
        "unit": {
          "type": "LinearUnit",
          "name": "Clarke's foot",
          "conversion_factor": 0.3047972654
        },
        "id": {
          "authority": "EPSG",
          "code": 8806
        }
      },
      {
        "name": "False northing",
        "value": 62565.96,
        "unit": {
          "type": "LinearUnit",
          "name": "Clarke's foot",
          "conversion_factor": 0.3047972654
        },
        "id": {
          "authority": "EPSG",
          "code": 8807
        }
      }
    ]
  },
  "coordinate_system": {
    "subtype": "Cartesian",
    "axis": [
      {
        "name": "Northing",
        "abbreviation": "N",
        "direction": "north",
        "unit": "metre"
      },
      {
        "name": "Easting",
        "abbreviation": "E",
        "direction": "east",
        "unit": "metre"
      }
    ]
  },
  "scope": "Cadastre, engineering survey, topographic mapping (large scale).",
  "area": "China - Hong Kong - onshore and offshore.",
  "bbox": {
    "south_latitude": 22.13,
    "west_longitude": 113.76,
    "north_latitude": 22.58,
    "east_longitude": 114.51
  },
  "id": {
    "authority": "EPSG",
    "code": 3366
  }
}