EPSG:3889 — IGRS
IGRS (EPSG:3889) — a Geographic (degrees) system on the GRS80 datum, used in Iraq. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free converter to WGS84 and UTM.
At a glance
- EPSG
- 3889
- Name
- IGRS
- Kind
- Geographic (degrees)
- Family
- Geographic (longitude/latitude)
- Ellipsoid
- GRS80
- Accuracy
- ±0.1 m (vs PROJ)
- Countries
- Iraq
Area of use
| West | 38.79° |
| South | 29.06° |
| East | 48.75° |
| North | 37.39° |
Projection parameters
| Projection | longlat |
| Ellipsoid | GRS80 |
+proj=longlat +ellps=GRS80 +no_defs
GEOGCS["GCS_IGRS",DATUM["D_GRS_1980",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG","3889"]]
Sample conversion
Iraq capital: WGS84 44.36610, 33.31520 → EPSG:3889 44.3661000, 33.3152000
Values are within ±0.1 m at the test point.
About the Geographic (longitude/latitude) family
IGRS 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:3890 — IGRS / UTM zone 37N
- EPSG:3891 — IGRS / UTM zone 38N
- EPSG:32637 — WGS 84 / UTM zone 37N
- EPSG:32638 — WGS 84 / UTM zone 38N
- EPSG:32639 — WGS 84 / UTM zone 39N
Useful links: Converter · Batch converter · File converter · Country page
Request technical support
FAQ
You may also need: Arab-world coordinate converter · Surveying file format converter · Batch coordinate file converter