A while back I was observing Uranus with my 6" dob and a moving object tracked across my field of view. I was at about 90x at the time, and the object was pretty bright but slow moving. I dropped down to about 40x and it was still visible, if faint, which allowed better tracking. I followed it for a good 5 minutes until I lost it after a chair bumped my scope. It was clearly moving in the plane of the ecliptic and in the right direction.
If that were to happen to me again, what do I need to have to get a reasonable track on it? Is it just a time plot vs. background stars and my exact location, or is there something more I need?