EPSG:21423

Beijing 1954 / Gauss-Kruger zone 23

Transform Get position on a map

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

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Provided by BGP to TOTAL in June 2006.

Information source: BGP

Revision date: 2020-03-14

Attributes

Unit: metre

Geodetic CRS: Beijing 1954

Datum: Beijing 1954

Ellipsoid: Krassowsky 1940

Prime meridian: Greenwich

Data source: EPSG

Revision date: 2002-06-22

Scope: Topographic mapping (medium scale).

Remarks: Also found with truncated false easting - see Beijing 1954 / Gauss-Kruger CM 135E (code 24163). Replaced by Xian 1980 / Gauss-Kruger zone 23 (code 2337).

Area of use: China - east of 132°E.

Coordinate system: Cartesian 2D CS. Axes: northing, easting (X,Y). Orientations: north, east. UoM: m.

Covered area powered by MapTiler MapTiler logo
SimpleMap

Center coordinates
21120167.67 4441881.79

Projected bounds:
20911036.79 4174250.75
21322341.43 4711662.24

WGS84 bounds:
107.0 35.0
110.01 39.0

China - Ordos basin.
MapTiler banner

Definition: OGC Well Known Text

PROJCS["Beijing 1954 / Gauss-Kruger zone 23",
    GEOGCS["Beijing 1954",
        DATUM["Beijing_1954",
            SPHEROID["Krassowsky 1940",6378245,298.3],
            TOWGS84[12.646,-155.176,-80.863,0,0,0,0]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4214"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",135],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",23500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","21423"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["Beijing 1954 / Gauss-Kruger zone 23",
    BASEGEOGCRS["Beijing 1954",
        DATUM["Beijing 1954",
            ELLIPSOID["Krassowsky 1940",6378245,298.3,
                LENGTHUNIT["metre",1]]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4214]],
    CONVERSION["6-degree Gauss-Kruger zone 23",
        METHOD["Transverse Mercator",
            ID["EPSG",9807]],
        PARAMETER["Latitude of natural origin",0,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",135,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",1,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",23500000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8806]],
        PARAMETER["False northing",0,
            LENGTHUNIT["metre",1],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["northing (X)",north,
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["easting (Y)",east,
            ORDER[2],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Topographic mapping (medium scale)."],
        AREA["China - east of 132°E."],
        BBOX[45.02,132,48.4,134.77]],
    ID["EPSG",21423]]

Definition: ESRI Well Known Text

PROJCS["Beijing_1954_GK_Zone_23",
    GEOGCS["GCS_Beijing_1954",
        DATUM["D_Beijing_1954",
            SPHEROID["Krasovsky_1940",6378245.0,298.3]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Gauss_Kruger"],
    PARAMETER["False_Easting",23500000.0],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",135.0],
    PARAMETER["Scale_Factor",1.0],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=135 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +towgs84=12.646,-155.176,-80.863,0,0,0,0 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:21423","+proj=tmerc +lat_0=0 +lon_0=135 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +towgs84=12.646,-155.176,-80.863,0,0,0,0 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "Beijing 1954 / Gauss-Kruger zone 23",
    "base_crs": {
        "name": "Beijing 1954",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Beijing 1954",
            "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"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4214
        }
    },
    "conversion": {
        "name": "6-degree Gauss-Kruger zone 23",
        "method": {
            "name": "Transverse Mercator",
            "id": {
                "authority": "EPSG",
                "code": 9807
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 0,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": 135,
                "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": 23500000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 0,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8807
                }
            }
        ]
    },
    "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
            {
                "name": "Northing",
                "abbreviation": "X",
                "direction": "north",
                "unit": "metre"
            },
            {
                "name": "Easting",
                "abbreviation": "Y",
                "direction": "east",
                "unit": "metre"
            }
        ]
    },
    "scope": "Topographic mapping (medium scale).",
    "area": "China - east of 132°E.",
    "bbox": {
        "south_latitude": 45.02,
        "west_longitude": 132,
        "north_latitude": 48.4,
        "east_longitude": 134.77
    },
    "id": {
        "authority": "EPSG",
        "code": 21423
    }
}

Definition: GeoServer

21423=PROJCS["Beijing 1954 / Gauss-Kruger zone 23",GEOGCS["Beijing 1954",DATUM["Beijing_1954",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[12.646,-155.176,-80.863,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4214"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",135],PARAMETER["scale_factor",1],PARAMETER["false_easting",23500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","21423"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=135"
	"k=1"
	"x_0=23500000"
	"y_0=0"
	"ellps=krass"
	"towgs84=12.646,-155.176,-80.863,0,0,0,0"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=0 +lon_0=135 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +towgs84=12.646,-155.176,-80.863,0,0,0,0 +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=0 +lon_0=135 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +towgs84=12.646,-155.176,-80.863,0,0,0,0 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 21423, 'EPSG', 21423, '+proj=tmerc +lat_0=0 +lon_0=135 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +towgs84=12.646,-155.176,-80.863,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["Beijing 1954 / Gauss-Kruger zone 23",GEOGCS["Beijing 1954",DATUM["Beijing_1954",SPHEROID["Krassowsky 1940",6378245,298.3],TOWGS84[12.646,-155.176,-80.863,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4214"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",135],PARAMETER["scale_factor",1],PARAMETER["false_easting",23500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","21423"]]');