PROJCS["UTM Zone 21, Southern Hemisphere",GEOGCS["Geographic Coordinate System",DATUM["SOUTH_AMERICAN_1969",SPHEROID["South America 1969",6378160.0,298.2499972761588]],PRIMEM["Greenwich",0.0],UNIT["degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["false_easting",500000.0],PARAMETER["false_northing",10000000.0],PARAMETER["central_meridian",-57.0],PARAMETER["scale_factor",0.9996],PARAMETER["latitude_of_origin",0.0],UNIT["Meter",1.0]]