4645=GEOGCS["RGNC 1991 (deprecated)",DATUM["Reseau_Geodesique_Nouvelle_Caledonie_1991",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6645"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4645"]]