Allow me to propose a simple solution which answers all our doubts. We find two people at two different locations, and ask them to keep time with the atomic clock(the online one). At precisely the right second, they attempt to measure the approximate angle of a satellite which is visible to both of them(we can check an online thing to find out when). Then, using the data, we calculate the approximate distance from a plane. Then, using the distance, we can calculate at what speed they are travelling, and I think we can agree that if they are travelling faster than the speed of sound, it is impossible for it to be a stratellite, and must be a satellite.