On Sat, Feb 20, 2016 at 09:32:07PM -0800, xxxxxx@shadowgard.com wrote:
> And even if you are plotting it relative to the planet, you have to
> do so with regards to where it will be at some point in time.

Of course.  You plot an exit trajectory that most closely matches the
planet's trajectory.  Most likely it is a geodesic very similar to
that which the planet itself follows, and so time variability would
contribute almost nothing to positioning error.

Pretty much any other reasonable model runs afoul of canonical
information.

- Tim