Celestia Forums

Do you think that you could give an example of what you'd like to see plotted for Mars Express? Do you want to see every orbit over the whole time range of the SPICE kernel? Or just a few orbits around the current time? I would prefer a single orbit centered on the current time, but anything approx...

The problems with track are now fixed in CVS. Are you building from the CVS tree or using a prebuilt version of Celestia? What great service! Thanks! I've been using the prebuilt Windows binary. I've got the source on my Linux machine at work but haven't had the chance to sort through all the packa...

OK, I changed the orbit frame to EclipticJ2000 and it appears to work fine. (The orbit display looks better if you explicitly define Period.) However, as I simulate along in sync orbit of MRO tracking MGS, at about 11/20/2006 16:00, it appears to go nuts and ends up 5543.1 Mpc (2630858023250000000 k...

Well, there seem to be some problems with how Celestia displays spice orbits, but it isn't with the MRO itself. It's a result of Celestia seriously undersampling the orbit. I need to figure out how to make Celestia choose the number of points to use to draw an orbit. Making a nice rendering of a lo...

I don't know what would be causing that . . . If you post your ssc file, I'll try and figure out what's going on. I'm using this: "spice_mgs" "Sol/Mars" { Radius 0.01 Color [ 1 1 0] Beginning "2006 11 02 00:00" Ending "2006 12 01 00:00:00" OrbitFrame { EquatorJ2000 { Center "Sol/Mars" } } SpiceOrbi...

Did you specify the correct reference plane? I forgot it, so Celestia assumed Mars Equatorial, which is wrong. Presumably it should be Ecliptic. Spice files are usually (always?) in EME2000. It looks more or less right if I say OrbitFrame { EquatorJ2000 { Center "Sol/Mars" } } However, when I try t...