EPSG:4230 — ED50
ED50 (EPSG:4230) — a Geographic (degrees) system on the intl datum, used in Jordan, Syria, Lebanon and more. Parameters, proj4, WKT, accuracy ±1.9 m, plus a free convert…
At a glance
- EPSG
- 4230
- Name
- ED50
- Kind
- Geographic (degrees)
- Family
- Geographic (longitude/latitude)
- Ellipsoid
- intl
- Accuracy
- ±1.9 m (vs PROJ)
- Countries
- Jordan، Syria، Lebanon، Palestine
Area of use
| West | -16.10° |
| South | 25.71° |
| East | 48.61° |
| North | 84.73° |
Projection parameters
| Projection | longlat |
| Ellipsoid | intl |
| Helmert shift to WGS84 | -87,-98,-121,0,0,0,0 |
+proj=longlat +ellps=intl +no_defs +towgs84=-87,-98,-121,0,0,0,0
GEOGCS["GCS_ED50",DATUM["D_International_1924",SPHEROID["International_1924",6378388,297],TOWGS84[-87,-98,-121,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG","4230"]]
Sample conversion
Jordan capital: WGS84 35.92840, 31.95390 → EPSG:4230 35.9286994, 31.9549541
Values are within ±1.9 m at the test point.
About the Geographic (longitude/latitude) family
ED50 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
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