I just got a new astronomy app for my iphone - Star Walk. It tracks satellites also. The directv satellites that it can track are: Directv 10 Directv 11 Directv 12 Directv 1R Directv 2 (DBS 2) Directv 4S Directv 5 (TEMPO 1) Directv 6 (TEMPO 2) Directv 7S Directv 8 Directv 9S I have HD (including SD) with HD locals in the San Diego area. Which satellites am I actually using? I would like to check out their locations relative to my growing trees.