EPSG systems

EPSG:4579 New Beijing / Gauss-Kruger CM 75E

Projected system (Transverse Mercator) in use: China - west of 78°E. The full definition below, and conversion in one click.

EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.

Convert coordinates Open in Carte Download the .prj

System record
Code	EPSG:4579
Name	New Beijing / Gauss-Kruger CM 75E
Type	Projected system — Transverse Mercator
Area of use	China - west of 78°E
Bounds	W 73,62° · S 35,42° · E 78,01° · N 41,07°
Countries	China
Datum	New Beijing
Ellipsoid	Krassowsky 1940 a = 6378245 m · 1/f = 298.3
Base geographic system	EPSG:4555 — New Beijing
Unit	metre (X north, Y east)
Transformation to WGS 84	No simple transformation published (ellipsoid alone)
Scope	Topographic mapping (medium scale).

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	75	degree
Scale factor at natural origin	1	unity
False easting	500000	metre
False northing	0	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=75 +k=1 +x_0=500000 +y_0=0 +ellps=krass +units=m +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:4579.

WKT (ESRI format, the .prj content)

PROJCS["New_Beijing_Gauss_Kruger_CM_75E",GEOGCS["GCS_New_Beijing",DATUM["D_New_Beijing",SPHEROID["Krasovsky_1940",6378245.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",75.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — China

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.

Projection parameters

proj4 definition

WKT (ESRI format, the .prj content)

Other systems — China