EPSG:4147

Hanoi 1972

Transform Get position on a map

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

  • Vietnam - onshore Vung Tau area. , accuracy 5.0 m, code 1544 (default) [3]

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Derived in Vung Tau area.

Information source: BP Amoco

Revision date: 2020-03-14

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Hanoi 1972

Datum: Hanoi 1972

Ellipsoid: Krassowsky 1940

Prime meridian: Greenwich

Data source: EPSG

Revision date: 2006-09-13

Scope: Geodesy.

Remarks: Replaces use of Indian 1960. Replaced by VN-2000 (CRS code 4756).

Area of use: Vietnam - onshore.

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

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SimpleMap

Center coordinates
106.53 10.04

WGS84 bounds:
105.49 9.03
107.58 11.04

Vietnam - onshore Vung Tau area.
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Definition: OGC Well Known Text

GEOGCS["Hanoi 1972",
    DATUM["Hanoi_1972",
        SPHEROID["Krassowsky 1940",6378245,298.3],
        TOWGS84[-17.51,-108.32,-62.39,0,0,0,0]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4147"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["Hanoi 1972",
    DATUM["Hanoi 1972",
        ELLIPSOID["Krassowsky 1940",6378245,298.3,
            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["Geodesy."],
        AREA["Vietnam - onshore."],
        BBOX[8.33,102.14,23.4,109.53]],
    ID["EPSG",4147]]

Definition: ESRI Well Known Text

GEOGCS["GCS_Hanoi_1972",
    DATUM["D_Hanoi_1972",
        SPHEROID["Krasovsky_1940",6378245.0,298.3]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=krass +towgs84=-17.51,-108.32,-62.39,0,0,0,0 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:4147","+proj=longlat +ellps=krass +towgs84=-17.51,-108.32,-62.39,0,0,0,0 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "Hanoi 1972",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "Hanoi 1972",
        "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"
            }
        ]
    },
    "scope": "Geodesy.",
    "area": "Vietnam - onshore.",
    "bbox": {
        "south_latitude": 8.33,
        "west_longitude": 102.14,
        "north_latitude": 23.4,
        "east_longitude": 109.53
    },
    "id": {
        "authority": "EPSG",
        "code": 4147
    }
}

Definition: GeoServer

4147=GEOGCS["Hanoi 1972",DATUM["Hanoi_1972",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[-17.51,-108.32,-62.39,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4147"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=krass"
	"towgs84=-17.51,-108.32,-62.39,0,0,0,0"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=krass +towgs84=-17.51,-108.32,-62.39,0,0,0,0 +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=krass +towgs84=-17.51,-108.32,-62.39,0,0,0,0 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 4147, 'EPSG', 4147, '+proj=longlat +ellps=krass +towgs84=-17.51,-108.32,-62.39,0,0,0,0 +no_defs +type=crs', 'GEOGCS["Hanoi 1972",DATUM["Hanoi_1972",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[-17.51,-108.32,-62.39,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4147"]]');