EPSG systems

EPSG:22230 RGSH2020 / UTM zone 30N

Projected system (Transverse Mercator) in use: Algeria - 6°W to 0°W. The full definition below, and conversion in one click.

System record
CodeEPSG:22230
NameRGSH2020 / UTM zone 30N
TypeProjected system — Transverse Mercator
Area of use Algeria - 6°W to 0°W
Algeria - between 6°W and 0°W (of Greenwich), onshore and offshore.
Bounds W -6,00° · S 21,82° · E 0,00° · N 37,01°
Countries Algeria
DatumSonatrach Reference Frame 2020
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system EPSG:10299 — RGSH2020
Unit metre (E east, N north)
Transformation to WGS 84 RGSH2020 to WGS 84 (1) (EPSG:10264) — accuracy 1 m
ScopeOil and gas exploration and production.

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin-3degree
Scale factor at natural origin0.9996unity
False easting500000metre
False northing0metre

proj4 definition

+proj=utm +zone=30 +ellps=GRS80 +units=m +towgs84=0,0,0 +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:22230.

WKT (ESRI format, the .prj content)

PROJCS["RGSH2020_UTM_zone_30N",GEOGCS["GCS_RGSH2020",DATUM["Sonatrach_Reference_Frame_2020",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-3.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Algeria

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