[Proj] System 42/83 (S42/83)

[Oscar van Vlijmen]

> I'm trying to use coordinates in S42/83, a system often used in eastern Europe
> (e.g. Russia) and partially in East-Germany ("Deutsches Heeresgitter").

> Is there a possibility to define these parameters in cs2cs/proj4?

One might want to give the ESRI IDs 28402 ... 28492 a try.
Inspect the PROJ - esri file.
For instance:
# Pulkovo 1942 / Gauss-Kruger zone 2
<28402> +proj=tmerc +lat_0=0 +lon_0=9 +k=1.000000 +x_0=2500000 +y_0=0
+ellps=krass +units=m