EPSG systems

EPSG:3342 IGCB 1955 / UTM zone 33S

Projected system (Transverse Mercator) in use: Congo DR (Zaire) - Bas Congo. The full definition below, and conversion in one click.

System record
CodeEPSG:3342
NameIGCB 1955 / UTM zone 33S
TypeProjected system — Transverse Mercator
Area of use Congo DR (Zaire) - Bas Congo
The Democratic Republic of the Congo (Zaire) - Lower Congo (Bas Congo)
Bounds W 12,17° · S -6,04° · E 16,28° · N -4,28°
Countries Congo - Kinshasa
DatumInstitut Geographique du Congo Belge 1955
Ellipsoid Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465
Base geographic system EPSG:4701 — IGCB 1955
Unit metre (E east, N north)
Transformation to WGS 84 IGCB 1955 to WGS 84 (1) (EPSG:15787) — accuracy 5 m
ScopeOil and gas exploration and production.

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin15degree
Scale factor at natural origin0.9996unity
False easting500000metre
False northing10000000metre

proj4 definition

+proj=utm +zone=33 +south +a=6378249.145 +rf=293.465 +units=m +towgs84=-79.9,-158,-168.9 +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:3342.

WKT (ESRI format, the .prj content)

PROJCS["IGCB_1955_UTM_Zone_33S",GEOGCS["GCS_IGCB_1955",DATUM["D_Institut_Geographique_du_Congo_Belge_1955",SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",10000000.0],PARAMETER["Central_Meridian",15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Congo - Kinshasa

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