will you later implement a zoom function so we can actually see over which cities they are? 
Also can you select a satelite and get some information like it's name, purpose and nationality? 
Those features would be really nice.
awesome project idea 
Well, implementing zoom-in would be pretty hard, as I just use the image as graph background.
Currently, the program supports tracking only one satellite, but I might consider adding the ability to use multiple data sets ^_^