Bug in OrbitFrame:
<p>
OrbitFrames with "Sol" as their Centers incorrectly place xyz trajectories at
exactly the same positions as do OrbitFrames with "SSB" as their Centers.
<p>
The trajectories should be far apart from one another.
<p>
The trajectory path is drawn relative to the parent specified 
in the object's "path". 
The xyz trajectory should be relative to the object named
as the OrbitFrame's Center.

<p>
This addon contains a single xyz trajectory.
The SSC referencing it defines two orbits. Both have "Sol" as their paths.
<ul>
<li>"Orbit_to_Mars" has "Sol" as its OrbitFrame's Center.
<li>"SSB_Orbit_to_Mars" 
has "SSB" as its OrbitFrame's Center.
</ul>
Both orbit paths exactly overlay one another. They should not.
<p>
If the "path" of the object "SSB_Orbit_to_Mars" is changed to "SSB" then
its orbit is as intended.
<p>
This problem is seen when using Celestia as built from cvs on November 21, 2007.
<p>
<ul>
<li>
<a href="
cel://Follow/Earth/1975-09-11T12:00:11.01688?x=AHW65BK3VJwP&y=nFZS/60cSRg&z=gGxwO7PMJy0D&ow=0.508337&ox=0.420587&oy=-0.684979&oz=-0.309037&select=Orbit_to_Mars&fov=33.395470&ts=0.000000&ltd=0&rf=2463671&lm=512&ver=2
">Earth departure Orbit</a>
 You should see two separate spacecraft orbit paths, one red and one grey.
At a distance, only the grey path is visible, overlaying the red path.

<li>
<a href="
cel://Follow/Orion_to_Mars/1976-02-18T10:50:33.67285?x=gGfUBzKEy3L1/////////w&y=EM8S70Hyc8g&z=4BauqJmfiqjo/////////w&ow=0.618023&ox=0.057038&oy=-0.745297&oz=-0.243568&select=Orbit_to_Mars&fov=31.407394&ts=0.000000&ltd=0&rf=2463671&lm=514&ver=2
">orbits near mars</a>
</ul>