GEOGCS["RGF93_v2b_(lon-lat)_3D",DATUM["Reseau_Geodesique_Francais_1993_v2b",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],LINUNIT["Meter",1.0]]