This table lists the predefined ellipsoids that can be used in coordinate system and datum definitions. Note that each coordinate system definition must specify either a datum or ellipsoid.
Recently added entries appear with a grey background.
Ellipsoid Name |
Description |
APL4-5 |
A.P.L./4.5 |
AIRY30 |
Airy 1830 |
AIRY49 |
Airy 1848 |
AIRY-MOD |
Airy Modified |
ANS66 |
Australian National Spheroid of 1966 |
AT77 |
Average Terrestrial System 1977 Canada |
ATS77 |
Average Terrestrial System 1977 Canada (same as AT77) |
AUSSIE52 |
Australian AIG 1952 |
AUSSIE |
Australian 1965 |
AUSTRALIAN165 |
Australian 165 (1962) |
BESL-MOD |
Bessel Modified |
BESL-NMB |
Bessel Namibia |
BeslNmb-GLM |
Bessel Namibia (GLM), EPSG, V6.3, 7046 [ISO Project Team 19127] |
BESL-TRI |
Bessel Triangulation Sweden |
BESSEL |
Bessel 1841 |
BESSEL-NORWAY |
Norwegian National Ellipsoid (NGO) |
BORNEO |
Borneo, 4 mm larger than EVRST-TM |
BPCNC |
Sphere having volume equal to International ellipsoid |
Clarke1866/IntnlFt |
Clarke 1880 (international foot), EPSG 6.11.2 |
Clarke66AuthalicSphere |
Clarke 1866 Authalic Sphere, ESPG 6.11.2 |
CLRK22 |
Clark3 1922 IGN |
CLRK58 |
Clarke 1858 |
CLRK66 |
Clarke 1866 |
CLRK80 |
Clarke 1880 |
Clrk80-Strasser |
Clarke 1880, EPSG, V6.3, 7034 |
CLRK85 |
Clarke 1885 |
CLRK-ARC |
Clark ARC |
CLRK-IGN |
Institut Geographique National (France), Clarke 1880 |
CLRK-PAl |
Clarke Palestine |
CLRK-RGS |
Clarke 1880 RGS |
CLRKS |
Clarke 1866, Spherical |
DANEMARK |
Danemark |
DELA1810 |
Delambre 1810 |
DELA-MOD |
Delambre Modified Hydro |
DELAMBRE1800 |
Delambre 1800 |
Everest1969/RSO |
Everest 1830 (RSO 1969), EPSG 6.11.2 |
Everest1830 |
Everest (1830 Definition), EPSG, V6.3, 7042 |
Everest1830/67 |
Everest 1830 (1967 Definition), ESPG 6.11.2 |
Everest1830Def62 |
Everest 1830 (1962 Definition), EPSG, V6.3, 7044 |
Everest1830Def75 |
Everest 1830 (1975 Definition), EPSG, V6.3, 7045 |
EVEREST |
Everest Indian 1830 |
EVERESTPAKISTAN |
Ellipsoid for Everest Pakistan |
EVRST-IM |
Everest Imperial 1830 |
EVRST_MD |
Everest Modified |
EVRST-TM |
Everest Timbalai (same as Everest Imperial) |
FSHR1960 |
Fischer 1960 (Mercury) |
FSHR60MOD |
Modified Fischer 1960 (South Asia) |
FSHR1968 |
Fischer 1968 |
GEM-10C |
GEM 10C, EPSG, V6.3, 7031 |
Ghana-WO |
Ghana Labelled War Office, given in feet, assumed IFOOT |
GRS1967 |
Geodetic Reference System 1967 |
GRS1980 |
Geodetic Reference System of 1980 |
GRS80SphereAuthalic |
GRS 1980 Authalic Sphere, EPSG, V6.3, 7048 |
HAYFORD |
Hayford 1924 (a.k.a. 1909), same as International 1924 |
HAYFORD1906 |
Hayford 1906 |
HEIS-29 |
Heiskanen 1929 |
HEISKANEN1926 |
Heiskanen 1926 |
HELMERT1907 |
Helmert 1907 |
HLMRT06 |
Helmert 1906 (a.k.a. 1907) |
HOLLAND |
Holland |
HOUGH |
Hough |
IndonesianNtl |
Indonesian National Spheroid, EPSG, V6.3, 7021 |
INTNL |
International 1924 |
IUGG-67 |
IUGG Reference Ellipsoid, 1967 |
JEFF-48 |
Jeffreys 1948 |
KAULA1964 |
Kaula 1964 |
KRASOV |
Krassovsky 1940/1948 |
KRASOVSKY1936 |
Krasovsky 1936 |
LEDERSTEGER1951 |
Ledersteger 1951 |
MICHIGAN |
Michigan based on Clarke 1866 + 800 feet |
NWL-9D |
NWL-9D |
NZGD49 |
New Zealand Geodetic Datum of 1949 (also known as International 1924) |
OSU86F |
OSU86F, EPSG, V6.3, 7032 |
OSU91A |
OSU91A, EPSG, V6.3, 7033 |
PLESSIS |
Plessis 1817 |
PZ-90 |
PZ-90, EPSG 6.11.2 |
PRATT1863 |
Pratt 1863 |
SA1969 |
South American 1969 |
SPHERE |
Sphere of radius 6370997 |
SPHERE-1 |
Sphere of radius 6371000.0 |
STRU1860 |
Struve, 1860 |
SVANBERG |
Svanberg |
UNITE |
Unit ellipsoid, testing only. Eccentricity same as Clarke 66 |
UNITS |
Unit sphere, testing only |
UNIT3 |
3.0 Unit sphere, testing only |
T-BPCNC |
Sphere for testing Bipolar Oblique Conformal Conic |
VEIS1964 |
Veis (1964) |
WALB |
Walbeck |
WAR-OFC |
War Office, McCaw |
WarOffice |
War Office, EPSG, V6.3, 7029 |
WGS60 |
World Geodetic System of 1960 |
WGS66 |
World Geodetic System of 1966 / NWL 8D |
WGS67 |
World Geodetic System of 1967, Lucerne |
WGS72 |
World Geodetic System of 1972 |
WGS84 |
World Geodetic System of 1984 |
Xian1980 |
Xian 1980, EPSG, V6.3, 7049 |