PROJCS["UTM_Zone_51_Northern_Hemisphere",
    GEOGCS["GCS_Clarke 1866",
        DATUM["D_unknown",
            SPHEROID["clrk66",6378206.4,294.9786982]],
        PRIMEM["Greenwich",0],
        UNIT["Degree",0.017453292519943295]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",123],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["Meter",1]]