EPSG:4315 Conakry 1905
Geographic system in latitude and longitude, in use: Guinea - onshore. Datum, ellipsoid and transformation to WGS 84 below.
| Code | EPSG:4315 |
|---|---|
| Name | Conakry 1905 |
| Type | Geographic system |
| Area of use | Guinea - onshore |
| Bounds | W -15,13° · S 7,19° · E -7,65° · N 12,68° |
| Countries | Guinea |
| Datum | Conakry 1905 |
| Ellipsoid | Clarke 1880 (IGN) a = 6378249.2 m · 1/f = 293.466021294 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | Conakry 1905 to WGS 84 (1) (EPSG:1517) — accuracy 30 m |
| Scope | Geodesy. |
proj4 definition
+proj=longlat +ellps=clrk80ign +towgs84=-23,259,-9 +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:4315.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Conakry_1905",DATUM["D_Conakry_1905",SPHEROID["Clarke_1880_IGN",6378249.2,293.466021293627]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
Other systems — Guinea
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.