EPSG:4206 Agadez
Geographic system in latitude and longitude, in use: Niger. 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:4206 |
|---|---|
| Name | Agadez |
| Type | Geographic system |
| Area of use | Niger |
| Bounds | W 0,16° · S 11,69° · E 16,00° · N 23,53° |
| Countries | Niger |
| Datum | Agadez |
| Ellipsoid | Clarke 1880 (IGN) a = 6378249.2 m · 1/f = 293.466021294 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Geodesy. |
proj4 definition
+proj=longlat +ellps=clrk80ign +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:4206.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Agadez",DATUM["D_Agadez",SPHEROID["Clarke_1880_IGN",6378249.2,293.466021293627]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — Niger
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.