EPSG systems

EPSG:4178 Pulkovo 1942(83)

Geographic system in latitude and longitude, in use: Europe - onshore - eastern - S-42(83). Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4178
NamePulkovo 1942(83)
TypeGeographic system
Area of use Europe - onshore - eastern - S-42(83)
Onshore Bulgaria, Czechia, Germany (former DDR), Hungary and Slovakia.
Bounds W 9,92° · S 41,24° · E 28,68° · N 54,74°
Also covers Bulgaria, Slovakia, Czechia, Germany, Hungary
DatumPulkovo 1942(83)
Ellipsoid Krassowsky 1940 a = 6378245 m · 1/f = 298.3
Unit degree (Lat north, Lon east)
Transformation to WGS 84 Pulkovo 1942(83) to WGS 84 (5) (EPSG:15998) — accuracy 5 m
ScopeGeodesy.

proj4 definition

+proj=longlat +ellps=krass +towgs84=26,-121,-78 +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:4178.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Pulkovo_1942_Adj_1983",DATUM["D_Pulkovo_1942_Adj_1983",SPHEROID["Krasovsky_1940",6378245.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Bulgaria

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