With the publication of Brown & Schaller's determination of the mass of Eris in Science of 15 June 2007, we also have an orbit (actually, a choice of two orbits) for Dysnomia, and a presumed rotation axis orientation for Eris.
I've updated outersys.ssc on the CVS tree, using Brown & Schaller's "Orbit 1", and have given Eris an orientation that matches the orbit pole, as Brown and Schaller suggest.
You can get the updated file here:
http://celestia.cvs.sourceforge.net/celestia/celestia/data/outersys.ssc
Grant
Orbit of Dysnomia defined
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Topic authorgranthutchison
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