EPSG:4810 Tananarive (Paris)
Geographic system in latitude and longitude, in use: Madagascar - onshore. 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.
| Code | EPSG:4810 |
|---|---|
| Name | Tananarive (Paris) |
| Type | Geographic system |
| Area of use | Madagascar - onshore |
| Bounds | W 43,18° · S -25,64° · E 50,56° · N -11,89° |
| Countries | Madagascar |
| Datum | Tananarive 1925 (Paris) |
| Ellipsoid | International 1924 a = 6378388 m · 1/f = 297 |
| Prime meridian | Paris 2.5969213 grad |
| Unit | grad (Lat north, Lon east) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Geodesy. |
proj4 definition
+proj=longlat +ellps=intl +pm=paris +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:4810.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Tananarive_1925_Paris",DATUM["Tananarive_1925_(Paris)",SPHEROID["International_1924",6378388.0,297.0]],PRIMEM["Paris",2.33722917],UNIT["Grad",0.0157079632679489]]
Other systems — Madagascar
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.