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Old 28-02-2013, 02:35 PM
carl37 (Carl)
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Join Date: Jul 2011
Location: Melbourne
Posts: 51
Quote:
Originally Posted by mithrandir View Post
I tried generating a 3D plot with gnuplot from JPL ephemeris for the two. This is the closest they appear to get. They cross at close to 90° - Mars moving in RA, C/2013 A1 moving in Dec.
That's a very cool graphic Andrew - I like it!

That looks about right using the MPC/JPL ephemeris, but my link a few posts ago is to a blog post by Leonid Elenin in which he states he has made new calculations including a further 6 days of observation arc.

These have not been published at the MPC yet, which is where the JPL data comes from.

Carl
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