EPSG:4255 — Karbala 1979
Karbala 1979 (EPSG:4255) — a Geographic (degrees) system on the intl datum, used in Iraq. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free converter to WGS84 and UTM.
At a glance
- EPSG
- 4255
- Name
- Karbala 1979
- Kind
- Geographic (degrees)
- Family
- Geographic (longitude/latitude)
- Ellipsoid
- intl
- Accuracy
- ±0.1 m (vs PROJ)
- Countries
- Iraq
Area of use
| West | 60.50° |
| South | 29.40° |
| East | 74.92° |
| North | 38.48° |
Projection parameters
| Projection | longlat |
| Ellipsoid | intl |
| Helmert shift to WGS84 | -333,-222,114,0,0,0,0 |
+proj=longlat +ellps=intl +no_defs +towgs84=-333,-222,114,0,0,0,0
GEOGCS["GCS_Karbala 1979",DATUM["D_International_1924",SPHEROID["International_1924",6378388,297],TOWGS84[-333,-222,114,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG","4255"]]
Sample conversion
Centre of the area of use: WGS84 67.71000, 33.94000 → EPSG:4255 67.7075781, 33.9382398
Values are within ±0.1 m at the test point.
About the Geographic (longitude/latitude) family
Karbala 1979 is a geographic coordinate system: positions are longitude and latitude in degrees on its reference ellipsoid, not metres on a plane. It is the datum layer that projected grids (UTM, national belts) are built upon.
Because it is unprojected, distances and areas cannot be measured directly from its degrees — convert to a metric projected system (or use a geodesic calculation) first. This page's converter does exactly that.
Related systems
- EPSG:3391 — Karbala 1979 / UTM zone 37N
- EPSG:3392 — Karbala 1979 / UTM zone 38N
- EPSG:3393 — Karbala 1979 / UTM zone 39N
- EPSG:3394 — Nahrwan 1934 / Iraq zone (LCC)
- EPSG:3889 — IGRS
- EPSG:3890 — IGRS / UTM zone 37N
- EPSG:32637 — WGS 84 / UTM zone 37N
- EPSG:32638 — WGS 84 / UTM zone 38N
- EPSG:32639 — WGS 84 / UTM zone 39N
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