EPSG systems

EPSG:4128 Madzansua

Geographic system in latitude and longitude, in use: Mozambique - west - Tete province. 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.

System record
CodeEPSG:4128
NameMadzansua
TypeGeographic system
Area of use Mozambique - west - Tete province
Bounds W 30,21° · S -17,76° · E 35,37° · N -14,01°
Countries Mozambique
DatumMadzansua
Ellipsoid Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214
Unit degree (Lat north, Lon east)
Transformation to WGS 84 No simple transformation published (ellipsoid alone)
ScopeGeodesy.

proj4 definition

+proj=longlat +ellps=clrk66 +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:4128.

WKT (ESRI format, the .prj content)

GEOGCS["GCS_Madzansua",DATUM["D_Madzansua",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]

All systems — Mozambique

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