PROJCS["UTM_Zone_21_Southern_Hemisphere",GEOGCS["GCS_Geographic Coordinate System",DATUM["D_SAD69_BR",SPHEROID["South_America_1969",6378160,298.2499972761588]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-57],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",10000000],UNIT["Meter",1]]