total descendants::1 total children::1 1 ❤️ |
"The official Earth Gravitational Model EGM2008 has been publicly released by the National Geospatial-Intelligence Agency (NGA) EGM Development Team. This gravitational model is complete to spherical harmonic degree and order 2159, and contains additional coefficients extending to degree 2190 and order 2159." http://en.wikipedia.org/wiki/EGM96 |
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