de422

Software Screenshot:
de422
Software Details:
Version: 2009
Upload Date: 14 Apr 15
Developer: Brandon Rhodes
Distribution Type: Freeware
Downloads: 27

Rating: nan/5 (Total Votes: 0)

de422 is the most recent long-period ephemeris published by the Jet Propulsion Laboratory. While requiring more than half a gigabyte of space, it achieves quite high accuracy.

Name: DE422 (September 2009)
Years: -3000 through 3000
Planets: Yes
Sun/Moon: Yes
Nutations: Yes
Librations: Yes
Report: Jones, Fomalont, Dhawan, Romney, Folkner, Lanyi, Border, Jacobson (2010) [PDF]
Size: 531 MB

This ephemeris incorporates ranging data from recent spacecraft missions, including the Cassini mission to Saturn, which results in an accuracy for Saturn of a few milliarcseconds for positions over the past decade. If this ephemeris is too large for your application, take a look at DE421 and DE423 as alternatives.

To compute using this ephemeris in Python, see the jplephem
package.

Requirements:

  • Python
  • jplephem

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