EPSG:5684 DB_REF / 3-degree Gauss-Kruger zone 4 (E-N)
Projected system (Transverse Mercator) in use: Germany - onshore 10.5°E to 13.5°E. The full definition below, and conversion in one click.
EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.
| Code | EPSG:5684 |
|---|---|
| Name | DB_REF / 3-degree Gauss-Kruger zone 4 (E-N) |
| Type | Projected system — Transverse Mercator |
| Area of use |
Germany - onshore 10.5°E to 13.5°E Germany - onshore between 10°30'E and 13°30'E. |
| Bounds | W 10,50° · S 47,39° · E 13,51° · N 54,74° |
| Countries | Germany |
| Datum | Deutsche Bahn Reference System |
| Ellipsoid | Bessel 1841 a = 6377397.155 m · 1/f = 299.1528128 |
| Base geographic system | EPSG:5681 — DB_REF |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Engineering survey and topographic mapping for railway applications. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | 12 | degree |
| Scale factor at natural origin | 1 | unity |
| False easting | 4500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=tmerc +lat_0=0 +lon_0=12 +k=1 +x_0=4500000 +y_0=0 +ellps=bessel +units=m +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:5684.
WKT (ESRI format, the .prj content)
PROJCS["DB_REF_3-Degree_GK_Zone_4_(E-N)",GEOGCS["GCS_DB_REF",DATUM["D_Deutsche_Bahn_Reference_System",SPHEROID["Bessel_1841",6377397.155,299.1528128]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",4500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",12.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — Germany
- EPSG:5666PD/83 / 3-degree Gauss-Kruger zone 3 (E-N)
- EPSG:5667PD/83 / 3-degree Gauss-Kruger zone 4 (E-N)
- EPSG:5668RD/83 / 3-degree Gauss-Kruger zone 4 (E-N)
- EPSG:5669RD/83 / 3-degree Gauss-Kruger zone 5 (E-N)
- EPSG:5670Pulkovo 1942(58) / 3-degree Gauss-Kruger zone 3 (E-N)
- EPSG:5671Pulkovo 1942(58) / 3-degree Gauss-Kruger zone 4 (E-N)
- EPSG:5673Pulkovo 1942(83) / 3-degree Gauss-Kruger zone 3 (E-N)
- EPSG:5674Pulkovo 1942(83) / 3-degree Gauss-Kruger zone 4 (E-N)
- EPSG:5675Pulkovo 1942(83) / 3-degree Gauss-Kruger zone 5 (E-N)
- EPSG:5676DHDN / 3-degree Gauss-Kruger zone 2 (E-N)
- EPSG:5677DHDN / 3-degree Gauss-Kruger zone 3 (E-N)
- EPSG:5678DHDN / 3-degree Gauss-Kruger zone 4 (E-N)
- EPSG:5679DHDN / 3-degree Gauss-Kruger zone 5 (E-N)
- EPSG:5680DHDN / 3-degree Gauss-Kruger zone 1 (E-N)
- EPSG:5681DB_REF
- EPSG:5682DB_REF / 3-degree Gauss-Kruger zone 2 (E-N)
- EPSG:5683DB_REF / 3-degree Gauss-Kruger zone 3 (E-N)
- EPSG:5685DB_REF / 3-degree Gauss-Kruger zone 5 (E-N)
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.