Use the program to see what was in the area. It is also a very good learning experience for students. All prediction programs need lat and long to make predictions. That should be supplied with observations. If it matches a mag 2 star, then that is the sat mag also.
Lights affect the brightness of a star just as much as the star.
It was a nice bonus to our star observations. There are other types of sats, such as weather sats, in polar orbit. Furnish some more info.