EPSG:4739

Hong Kong 1963(67)

Transform Get position on a map

Available transformations
to EPSG:4326
No other targets exist for this CRS

  • China - Hong Kong - onshore and offshore. , accuracy 1.0 m, code 15842 (default) [3]

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Derived at 2 satellite stations. Accuracy +/- 1m. Care: does not use Hong Kong 1963 (code 4838) as the source CRS.

Information source: UK Hydrographic office and DMA / NIMA / NGA TR8350.2 (3rd edition, Amendment 1, 3 January 2000)

Revision date: 2020-03-14

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Hong Kong 1963(67)

Datum: Hong Kong 1963(67)

Ellipsoid: International 1924

Prime meridian: Greenwich

Data source: EPSG

Information source: UK Hydrographic Office.

Revision date: 2006-02-03

Scope: Military survey.

Remarks: For military purposes only, replaces Hong Kong 1963. Replaced by Hong Kong 1980 (CRS code 4611).

Area of use: China - Hong Kong - onshore and offshore.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

Covered area powered by MapTiler MapTiler logo
SimpleMap

Center coordinates
114.13 22.36

WGS84 bounds:
113.76 22.13
114.51 22.58

China - Hong Kong - onshore and offshore.
MapTiler banner

Definition: OGC Well Known Text

GEOGCS["Hong Kong 1963(67)",
    DATUM["Hong_Kong_1963_67",
        SPHEROID["International 1924",6378388,297],
        TOWGS84[-156,-271,-189,0,0,0,0]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4739"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["Hong Kong 1963(67)",
    DATUM["Hong Kong 1963(67)",
        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["China - Hong Kong - onshore and offshore."],
        BBOX[22.13,113.76,22.58,114.51]],
    ID["EPSG",4739]]

Definition: ESRI Well Known Text

GEOGCS["GCS_Hong_Kong_1963_67",
    DATUM["D_Hong_Kong_1963_67",
        SPHEROID["International_1924",6378388.0,297.0]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=intl +towgs84=-156,-271,-189,0,0,0,0 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4739","+proj=longlat +ellps=intl +towgs84=-156,-271,-189,0,0,0,0 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "Hong Kong 1963(67)",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Hong Kong 1963(67)",
        "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": "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": 4739
    }
}

Definition: GeoServer

4739=GEOGCS["Hong Kong 1963(67)",DATUM["Hong_Kong_1963_67",SPHEROID["International 1924",6378388,297],TOWGS84[-156,-271,-189,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4739"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=intl"
	"towgs84=-156,-271,-189,0,0,0,0"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=intl +towgs84=-156,-271,-189,0,0,0,0 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=intl +towgs84=-156,-271,-189,0,0,0,0 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4739, 'EPSG', 4739, '+proj=longlat +ellps=intl +towgs84=-156,-271,-189,0,0,0,0 +no_defs +type=crs', 'GEOGCS["Hong Kong 1963(67)",DATUM["Hong_Kong_1963_67",SPHEROID["International 1924",6378388,297],TOWGS84[-156,-271,-189,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4739"]]');