4043 Unknown datum based upon the WGS 72 ellipsoid 6043 Not specified (based on WGS 72 ellipsoid) 6043 9122 7043 8901 0 0 6422 0 44 4044 Unknown datum based upon the Everest 1830 (1962 Definition) ellipsoid 6044 Not specified (based on Everest 1830 (1962 Definition) ellipsoid) 6...