GDA94 / MGA zone 55 28355 GDA94 4283 ellipsoidal 6402 Geodetic latitude 9901 Lat north Geodetic longitude 9902 Lon east Geocentric_Datum_of_Australia_1994 6283 Greenwich 8901 0 GRS 1980 7019 6378137 298.257222101 0 147 0.9996 500000 10000000 Cartesian 4400 Easting 9906 E east Northing 9907 N north