If you are just a science tourist, try not to belittle the scientific knowledge of the real geeks by asking for a quick answer to something they have prepared themselves to understand with years of hard work.
If you are really interested in the science of satellites, and have kept up with your mathematics, then you should read this book:
http://books.google.com/books?id=UtJK8cetqGkC&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false
You can’t say a blasted thing without pissing someone off.
How did I insult “geeks”? Did I say I am smarter?
I admire them for their hard work and tenacity, which is something I should learn.