NASA JPL Development Ephemerides (DE405)

version (51.9 MB) by Meysam Mahooti
DE405 covers 1599-12-09 to 2201-02-20. Referred to the International Celestial Reference Frame.


Updated 13 Jan 2022

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The JPL planetary ephemerides are saved as files of Chebyshev polynomials fit to the Cartesian positions and velocities of the planets, Sun, and Moon, typically in 32-day intervals. The positions are integrated in astronomical units (au), but with polynomials stored in units of kilometers.
Standish, E.M.: 1998, "JPL Planetary and Lunar Ephemerides, DE405/LE405",JPL IOM 312.F-98-048.

Cite As

Meysam Mahooti (2022). NASA JPL Development Ephemerides (DE405) (, MATLAB Central File Exchange. Retrieved .

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