EPSG:4171 RGF93 v1
Geographic system in latitude and longitude, in use: France. Datum, ellipsoid and transformation to WGS 84 below.
| Code | EPSG:4171 |
|---|---|
| Name | RGF93 v1 |
| Type | Geographic system |
| Area of use |
France France - onshore and offshore, mainland and Corsica (France métropolitaine including Corsica). |
| Bounds | W -9,86° · S 41,15° · E 10,38° · N 51,56° |
| Countries | France |
| Datum | Reseau Geodesique Francais 1993 v1 |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Unit | degree (Lat north, Lon east) |
| Transformation to WGS 84 | RGF93 v1 to WGS 84 (1) (EPSG:1671) — accuracy 1 m |
| Scope | Horizontal component of 3D system. |
proj4 definition
+proj=longlat +ellps=GRS80 +towgs84=0,0,0 +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:4171.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_RGF_1993",DATUM["D_RGF_1993",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]Other systems — France
- EPSG:2154RGF93 v1 / Lambert-93
- EPSG:3942RGF93 v1 / CC42
- EPSG:3943RGF93 v1 / CC43
- EPSG:3944RGF93 v1 / CC44
- EPSG:3945RGF93 v1 / CC45
- EPSG:3946RGF93 v1 / CC46
- EPSG:3947RGF93 v1 / CC47
- EPSG:3948RGF93 v1 / CC48
- EPSG:3949RGF93 v1 / CC49
- EPSG:3950RGF93 v1 / CC50
- EPSG:4275NTF
- EPSG:4807NTF (Paris)
- EPSG:4901ATF (Paris)
- EPSG:5627ED50 / TM 6 NE
- EPSG:7084RGF93 v1 (lon-lat)
- EPSG:9547LTF2004(G)
- EPSG:9549LTF2004(C)
- EPSG:9777RGF93 v2
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.