
13
Appendix A
13.1 Reference Ellipsoids
Ellipsoid Semi-Major Axis 1/Flattening
Airy 1830 6377563.396 299.3249646
Modified Airy 6377340.189 299.3249646
Australian National 6378160 298.25
Bessel 1841 (Namibia) 6377483.865 299.1528128
Bessel 1841 6377397.155 299.1528128
Clarke 1866 6378206.4 294.9786982
Clarke 1880 6378249.145 293.465
Everest (India 1830) 6377276.345 300.8017
Everest (Sabah
Sarawak)
6377298.556 300.8017
Everest (India 1956) 6377301.243 300.8017
Everest (Malaysia 1969) 6377295.664 300.8017
Everest (Malaysia and
Sing)
6377304.063 300.8017
Everest (Pakistan) 6377309.613 300.8017
Modified Fischer 1960 6378155 298.3
Helmert 1906 6378200 298.3
Hough 1960 6378270 ...