And how do we, stuck on the surface of the earth, "discern" the angular rate of a satellite's orbit? What are you getting at, BOAC? Wafffling a bit?
- I'm sure, as you no doubt are, that you are right, but to answer your question, most of us would notice that it appeared to take a bit longer to fly over our sky - err - well, a bit like wot Treadi said. Simples?