PROJCS["ATS_1977_UTM_Zone_20N",GEOGCS["GCS_ATS_1977",DATUM["D_ATS_1977",SPHEROID["ATS_1977",6378135.0,298.257],EXTENSION["PROJ4_GRIDS","PE7783V2.gsb"]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-63.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]