EPSG:4199 Egypt 1930
Geographic system in latitude and longitude, in use: Egypt - onshore. Datum, ellipsoid and transformation to WGS 84 below.
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:4199 |
|---|---|
| Name | Egypt 1930 |
| Type | Geographic system |
| Area of use | Egypt - onshore |
| Bounds | W 24,70° · S 21,97° · E 36,95° · N 31,68° |
| Countries | Egypt |
| Datum | Egypt 1930 |
| Ellipsoid | International 1924 a = 6378388 m · 1/f = 297 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Geodesy. |
proj4 definition
+proj=longlat +ellps=intl +no_defs
Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:4199.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Egypt_1930",DATUM["D_Egypt_1930",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
Other systems — Egypt
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.