EPSG systems

EPSG:20023 Pulkovo 1995 / Gauss-Kruger zone 23

Projected system (Transverse Mercator) in use: Russia - 132°E to 138°E onshore. The full definition below, and conversion in one click.

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System record
Code	EPSG:20023
Name	Pulkovo 1995 / Gauss-Kruger zone 23
Type	Projected system — Transverse Mercator
Area of use	Russia - 132°E to 138°E onshore Russian Federation - onshore between 132°E and 138°E.
Bounds	W 132,00° · S 42,63° · E 138,00° · N 76,15°
Countries	Russia
Datum	Pulkovo 1995
Ellipsoid	Krassowsky 1940 a = 6378245 m · 1/f = 298.3
Base geographic system	EPSG:4200 — Pulkovo 1995
Unit	metre (X north, Y east)
Transformation to WGS 84	Pulkovo 1995 to WGS 84 (2) (EPSG:5043) — accuracy 1 m
Scope	Topographic mapping (medium scale).

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	135	degree
Scale factor at natural origin	1	unity
False easting	23500000	metre
False northing	0	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=135 +k=1 +x_0=23500000 +y_0=0 +ellps=krass +units=m +towgs84=24.47,-130.89,-81.56,0,0,0.13,-0.22 +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:20023.

WKT (ESRI format, the .prj content)

PROJCS["Pulkovo_1995_GK_Zone_23",GEOGCS["GCS_Pulkovo_1995",DATUM["D_Pulkovo_1995",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]]

All systems — Russia

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 — Russia