EPSG systems

EPSG:28409 Pulkovo 1942 / Gauss-Kruger zone 9

Projected system (Transverse Mercator) in use: Asia - FSU onshore 48°E to 54°E. The full definition below, and conversion in one click.

System record
CodeEPSG:28409
NamePulkovo 1942 / Gauss-Kruger zone 9
TypeProjected system — Transverse Mercator
Area of use Asia - FSU onshore 48°E to 54°E
Azerbaijan - east of 48°E; Kazakhstan - 48°E to 54°E; Russian Federation - 48°E to 54°E; Turkmenistan - west of 54°E. Includes Caspian Sea (considered a lake rather than offshore).
Bounds W 48,00° · S 37,34° · E 54,00° · N 81,40°
Also covers Azerbaijan, Kazakhstan, Russia, Turkmenistan
DatumPulkovo 1942
Ellipsoid Krassowsky 1940 a = 6378245 m · 1/f = 298.3
Base geographic system EPSG:4284 — Pulkovo 1942
Unit metre (X north, Y east)
Transformation to WGS 84 Pulkovo 1942 to WGS 84 (16) (EPSG:15865) — accuracy 4.5 m
ScopeTopographic mapping (medium scale).

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin51degree
Scale factor at natural origin1unity
False easting9500000metre
False northing0metre

proj4 definition

+proj=tmerc +lat_0=0 +lon_0=51 +k=1 +x_0=9500000 +y_0=0 +ellps=krass +units=m +towgs84=25,-141,-78.5,0,0.35,0.736,0 +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:28409.

WKT (ESRI format, the .prj content)

PROJCS["Pulkovo_1942_GK_Zone_9",GEOGCS["GCS_Pulkovo_1942",DATUM["D_Pulkovo_1942",SPHEROID["Krasovsky_1940",6378245.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",9500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",51.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Azerbaijan

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