Deluo TRISTAR25 User Manual
Page 39
Deluo Electronics http://www.deluo.com
39
ELLIPSOID DESCRIPTION TABLE
Ellipsoid
Semi-major axis (a)
Inverse flattening (1/f)
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 (Malay. & 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
297
Indonesian 1974
6378160
298.247
International 1924
6378388
297
Krassovsky 1940
6378245
298.3
GRS 80
6378137
298.257222101
South American 1969
6378160
298.25
WGS 72
6378135
298.26
WGS 84
6378137
298.257223563