What a surprise,,,
Is it just wishful thinking on my part, or is there just the slightest of chances that one day you'll actually post a relevant, adult comment that, as well as not being off-topic, actually adds something meaningful to the debate?
Your puerile one-liners are nothing more than a waste of my download bandwidth. Which, not surprisingly, costs me money—whereas I'm guessing your mommy pays for yours.
So... for once in your young life... could you please address the OP's question as to how it is that we can predict the path of—and track—man-made satellites so precisely using round earth astrophysics? Or do you deny the existence of these satellites altogether?