EPSG systems

EPSG:4697 IGC 1962 6th Parallel South

Geographic system in latitude and longitude, in use: Congo DR (Zaire) - 6th parallel south. 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.

Convert coordinates Open in Carte Download the .prj

System record
Code	EPSG:4697
Name	IGC 1962 6th Parallel South
Type	Geographic system
Area of use	Congo DR (Zaire) - 6th parallel south The Democratic Republic of the Congo (Zaire) - adjacent to 6th parallel south traverse.
Bounds	W 12,17° · S -7,36° · E 29,64° · N -3,29°
Countries	Congo - Kinshasa
Datum	IGC 1962 Arc of the 6th Parallel South
Ellipsoid	Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465
Unit	degree (Lat north, Lon east)
Transformation to WGS 84	No simple transformation published (ellipsoid alone)
Scope	Geodesy.

proj4 definition

+proj=longlat +a=6378249.145 +rf=293.465 +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:4697.

WKT (ESRI format, the .prj content)

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]]

All systems — Congo - Kinshasa

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

proj4 definition

WKT (ESRI format, the .prj content)

Other systems — Congo - Kinshasa