PROJCS["Callisto_Mercator_AUTO",
    GEOGCS["Callisto 2000",
        DATUM["D_Callisto_2000",
            SPHEROID["Callisto_2000_IAU_IAG",2409400.0,24094.0]],
        PRIMEM["Greenwich",0],
        UNIT["Decimal_Degree",0.0174532925199433]],
    PROJECTION["Mercator"],
    PARAMETER["False_Easting",0],
    PARAMETER["False_Northing",0],
    PARAMETER["Central_Meridian",0],
    PARAMETER["Standard_Parallel_1",0],
    UNIT["Meter",1]]