Quote:
Originally Posted by mithrandir
Do you need the full version of SOLEX or will the Lite version work?
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From memory the Lite version will work fine. The full version is postcard ware and includes alot more stars and asteroids.
Solex is a very accurate numerical intergrator, comparable to the jpl one.
The documentation give a large number of graphs showing the errors between solex and jpl's DE421 and DE406 over 10000+ years.
I've attached a histogram generated from 1256 monty carlo generated fits to the observations. I didn't remove any outliers. I have since worked out how in EXORB to find and remove the 4 you mentioned. It didn't make much of a difference to the best fit. So I doubt the histogram will be very different either.
http://moozoo.dyndns.org/misc/MINDIST.jpg
I also posted this at
http://cosmoquest.org/forum/showthre...ith-Mars/page5