EPSG systems

EPSG:4285 Qatar 1974

Geographic system in latitude and longitude, in use: Qatar. Datum, ellipsoid and transformation to WGS 84 below.

System record
CodeEPSG:4285
NameQatar 1974
TypeGeographic system
Area of use Qatar
Qatar - onshore and offshore.
Bounds W 50,55° · S 24,55° · E 53,04° · N 27,05°
Countries Qatar
DatumQatar 1974
Ellipsoid International 1924 a = 6378388 m · 1/f = 297
Unit degree (Lat north, Lon east)
Transformation to WGS 84 Qatar 1974 to WGS 84 (2) (EPSG:1562) — accuracy 1 m
ScopeGeodesy.

proj4 definition

+proj=longlat +ellps=intl +towgs84=-128.16,-282.42,21.93 +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:4285.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Qatar_1974",DATUM["D_Qatar",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Qatar

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.