Figures of the Earth

Ellipsoid Name Semi Major Semi Minor Flattening Inverse Flattening
Applied Physics Lab. (APL) 6378144.000 6356761.643 0.006693645 298.2900285
Bouguer-Maupertius 1738 6397300.000 6367792.158 0.009203817 216.7999922
Clarke 1858 6378293.645 6356617.939 0.006785161 294.2600249
Delambre 6375653.000 6356564.218 0.005979060 333.9999913
Everest 1967 6377298.565 6356097.558 0.006637847 300.8016832
Fisher 1 (Mercury 1960) 6378166.000 6356784.282 0.006693422 298.2999832
Fisher 2 (Mercury) 6378150.000 6356768.336 0.006693422 298.2999832
Hayford 1906 6378283.000 6356864.991 0.006704641 297.7999928
Heiskanen 1926 6378397.000 6356920.916 0.006722670 297.0000010
Helmert 1907 6378200.000 6356818.168 0.006693422 298.2999832
Hough 1956 6378270.000 6356784.376 0.006725785 296.8622152
Jeffreys 1948 6378099.000 6356631.148 0.006720411 297.1000033
Kaula 1964 6378160.000 6356774.719 0.006694542 298.2499935
Krasovsky 1936 6378210.000 6356849.619 0.006686708 298.6000044
Krasovsky 1942 6378245.000 6356863.018 0.006693422 298.2999832
Ledersteger 1951 6378298.000 6356822.249 0.006722670 297.0000010
Mod. Bessel (Norge) 6377492.018 6356173.509 0.006674372 299.1528232
Pratt 1863 6378245.000 6356645.795 0.006761306 295.2999928
Ref. Ellipsoid 1967 6378160.000 6356774.719 0.006694542 298.2499935
Spheroid for NWL8D&NWL10D 6378145.000 6356759.769 0.006694542 298.2499935
Spheroid for NWL9D Datum 6378145.000 6356759.769 0.006694542 298.2499935
Spheroid for SAO SEIII 6378140.400 6356755.616 0.006694407 298.2560182
Spheroid for SAO-C5 6378165.000 6356779.702 0.006694542 298.2499935
Spheroid for SAO-C6 6378155.000 6356769.735 0.006694542 298.2499935
Spheroid for SAO-C7 6378142.000 6356757.137 0.006694430 298.2549917
Spheroid for WGS72 Datum 6378135.000 6356750.519 0.006694318 298.2599901
Struve 6378298.300 6356657.145 0.006774359 294.7300349
Veis 1964 6378169.000 6356783.689 0.006694542 298.2499935
Walbeck 1819 6376896.000 6355834.847 0.006594548 302.7800043
WD Spheriod 6378300.000 6356751.690 0.006745343 296.0000139