EPSG systems

EPSG:20927 GSK-2011 / Gauss-Kruger zone 27

Projected system (Transverse Mercator) in use: Russia - 156°E to 162°E onshore. The full definition below, and conversion in one click.

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System record
Code	EPSG:20927
Name	GSK-2011 / Gauss-Kruger zone 27
Type	Projected system — Transverse Mercator
Area of use	Russia - 156°E to 162°E onshore Russian Federation - onshore between 156°E and 162°E.
Bounds	W 156,00° · S 50,27° · E 162,00° · N 77,20°
Countries	Russia
Datum	Geodezicheskaya Sistema Koordinat 2011
Ellipsoid	GSK-2011 a = 6378136.5 m · 1/f = 298.2564151
Base geographic system	EPSG:7683 — GSK-2011
Unit	metre (X north, Y east)
Transformation to WGS 84	GSK-2011 to WGS 84 (1) (EPSG:9773) — accuracy 1 m
Scope	Topographic mapping (medium scale).

Projection parameters

Parameter	Value	Unit
Latitude of natural origin	0	degree
Longitude of natural origin	159	degree
Scale factor at natural origin	1	unity
False easting	27500000	metre
False northing	0	metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=159 +k=1 +x_0=27500000 +y_0=0 +a=6378136.5 +rf=298.2564151 +units=m +towgs84=0,0,0 +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:20927.

WKT (ESRI format, the .prj content)

PROJCS["GSK-2011_Gauss-Kruger_zone_27",GEOGCS["GCS_GSK-2011",DATUM["Geodezicheskaya_Sistema_Koordinat_2011",SPHEROID["GSK-2011",6378136.5,298.2564151]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",27500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",159.0],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