GEOGCS["GCS_RGM23",DATUM["Mayotte_Geodetic_Reference_Frame_2023",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],VERTCS["IGN_2023_Mayotte_height",VDATUM["IGN_2023_Mayotte"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0]]