Petrels 1972 / Terre Adelie Polar Stereographic Petrels 1972 ellipsoidal 6402 Geodetic latitude 9901 Lat north Geodetic longitude 9902 Lon east Petrels 1972 Greenwich 0 International 1924 6378388.0 297.0 Cartesian 4400 Easting 9906 E east Northing 9907 N north