EPSG:3318 IGC 1962 / Congo TM zone 12
Projected system (Transverse Mercator) in use: Congo DR (Zaire) - 11°E to 13°E onshore. The full definition below, and conversion in one click.
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:3318 |
|---|---|
| Name | IGC 1962 / Congo TM zone 12 |
| Type | Projected system — Transverse Mercator |
| Area of use |
Congo DR (Zaire) - 11°E to 13°E onshore The Democratic Republic of the Congo (Zaire) - onshore west of 13°E. |
| Bounds | W 12,17° · S -6,04° · E 13,01° · N -4,67° |
| Countries | Congo - Kinshasa |
| Datum | IGC 1962 Arc of the 6th Parallel South |
| Ellipsoid | Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465 |
| Base geographic system | EPSG:4697 — IGC 1962 6th Parallel South |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Cadastre, engineering survey, topographic mapping (medium scale). |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | 12 | degree |
| Scale factor at natural origin | 0.9999 | unity |
| False easting | 500000 | metre |
| False northing | 10000000 | metre |
proj4 definition
+proj=tmerc +lat_0=0 +lon_0=12 +k=0.9999 +x_0=500000 +y_0=10000000 +a=6378249.145 +rf=293.465 +units=m +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:3318.
WKT (ESRI format, the .prj content)
PROJCS["IGC_1962_Congo_TM_Zone_12",GEOGCS["GCS_IGC_1962_6th_Parallel_South",DATUM["D_IGC_1962_Arc_of_the_6th_Parallel_South",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",12.0],PARAMETER["Scale_Factor",0.9999],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — Congo - Kinshasa
- EPSG:3316Kasai 1953 / Congo TM zone 22
- EPSG:3317Kasai 1953 / Congo TM zone 24
- EPSG:3319IGC 1962 / Congo TM zone 14
- EPSG:3320IGC 1962 / Congo TM zone 16
- EPSG:3321IGC 1962 / Congo TM zone 18
- EPSG:3322IGC 1962 / Congo TM zone 20
- EPSG:3323IGC 1962 / Congo TM zone 22
- EPSG:3324IGC 1962 / Congo TM zone 24
- EPSG:3325IGC 1962 / Congo TM zone 26
- EPSG:3326IGC 1962 / Congo TM zone 28
- EPSG:3327IGC 1962 / Congo TM zone 30
- EPSG:3339IGCB 1955 / Congo TM zone 12
- EPSG:3340IGCB 1955 / Congo TM zone 14
- EPSG:3341IGCB 1955 / Congo TM zone 16
- EPSG:3342IGCB 1955 / UTM zone 33S
- EPSG:3353Mhast (onshore) / UTM zone 32S
- EPSG:3354Mhast (offshore) / UTM zone 32S
- EPSG:3986Katanga 1955 / Katanga Gauss zone A
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.