POSC Specifications
Version 2.2.2		 Epicentre Standard Values
ellipsoid

ellipsoid

Changes Document
Standard Instance Values

Alias values exist. Go to ellipsoid_alias.

identifier ref _naming _system semimajor _axis semiminor _axis inverse _flattening source _reference source version status
  ref _naming _system .kind       ref _source _reference .ref _source .name ref _source .name ref _epicentre _version .name  
Airy 1830 EPSG preferred name 6377563.396 m   299.32496 EPSG POSC 2.1 current
Airy Modified 1849 EPSG preferred name 6377340.189 m   299.32496 EPSG POSC 2.1 current
Australian National Spheroid EPSG preferred name 6378135 m   298.257 EPSG POSC 2.1 current
Average Terrestrial System 1977 EPSG preferred name 6377397.155 m   299.15281 EPSG POSC 2.1 current
Bessel 1841 EPSG preferred name 6377397.155 m   299.15281 EPSG POSC 2.1 current
Bessel Modified EPSG preferred name 6377492.018 m   299.15281 EPSG POSC 2.1 current
Bessel Namibia EPSG preferred name 6377483.865 m   299.15281 EPSG POSC 2.1 current
Clarke 1858 EPSG preferred name 20926348 ftCla 20855233 ftCla   EPSG POSC 2.1 current
Clarke 1866 EPSG preferred name 6378206.4 m 6356583.8 m   EPSG POSC 2.1 current
Clarke 1866 Michigan EPSG preferred name 20926631.53 ftMA 20855688.67 ftMA   EPSG POSC 2.1 current
Clarke 1880 EPSG preferred name 20926202 ftCla 20854895 ftCla   EPSG POSC 2.1 current
Clarke 1880 (Arc) EPSG preferred name 6378249.145 m   293.46631 EPSG POSC 2.1 current
Clarke 1880 (Benoit) EPSG preferred name 6378300.79 m 6356566.43 m   EPSG POSC 2.1 current
Clarke 1880 (IGN) EPSG preferred name 6378249.2 m 6356515 m   EPSG POSC 2.2.2 current
Clarke 1880 (RGS) EPSG preferred name 6378249.145 m   293.465 EPSG POSC 2.1 current
Clarke 1880 (SGA 1922) EPSG preferred name 6378249.2 m   293.46598 EPSG POSC 2.1 current
Everest 1830 (1937 Adjustment) EPSG preferred name 6377276.345 m   300.8017 EPSG POSC 2.1 current
Everest 1830 (1967 Definition) EPSG preferred name 6377298.556 m   300.8017 EPSG POSC 2.1 current

ellipsoid

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identifier ref _naming _system semimajor _axis semiminor _axis inverse _flattening source _reference source version status
Everest 1830 (1975 Definition) EPSG preferred name 6377301.243 m 6356100.231 m   EPSG POSC 2.1 current
Everest 1830 Modified EPSG preferred name 6377304.063 m   300.8017 EPSG POSC 2.1 current
GEM 10C EPSG preferred name 6378137 m   298.257223563 EPSG POSC 2.1 current
GRS67 EPSG preferred name 6378160 m   298.247167427 EPSG POSC 2.2 current
GRS 1980 EPSG preferred name 6378137 m   298.257222101 EPSG POSC 2.1 current
Helmert 1906 EPSG preferred name 6378200 m   298.3 EPSG POSC 2.1 current
Indonesian National Spheroid EPSG preferred name 6378160 m   298.247 EPSG POSC 2.1 current
International 1924 EPSG preferred name 6378388 m   297 EPSG POSC 2.1 current
International 1967 EPSG preferred name 6378160 m   298.25 EPSG POSC 2.2 deprecated
Krassowsky 1940 EPSG preferred name 6378245 m   298.3 EPSG POSC 2.1 current
NWL 10D EPSG preferred name 6378135 m   298.26 EPSG POSC 2.1 current
NWL 9D EPSG preferred name 6378145 m   298.25 EPSG POSC 2.1 current
OSU86F EPSG preferred name 6378136.2 m   298.257223563 EPSG POSC 2.1 current
OSU91A EPSG preferred name 6378136.3 m   298.257223563 EPSG POSC 2.1 current
Plessis 1817 EPSG preferred name 6376523 m   308.64 EPSG POSC 2.1 current
Sphere EPSG preferred name 6371000 m 6371000 m   EPSG POSC 2.1 current
Struve 1860 EPSG preferred name 6378297 m   294.73 EPSG POSC 2.1 current
War Office EPSG preferred name 6378300.583 m   296 EPSG POSC 2.1 current
WGS 84 EPSG preferred name 6378137 m   298.257223563 EPSG POSC 2.1 current

ellipsoid

identifier ref _naming _system source version status
  ref _naming _system .kind ref _source .name ref _epicentre _version .name  
Unknown EPSG preferred name POSC 2.1 current

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