You might check your definition of what constitutes “orbit” and “flying”. They’re flying at around seventeen thousand miles per hour relative to Earth’s surface, which in near vacuum allows the craft to remain in orbit and not fall into the planet’s gravity well. So if they aren’t flying they’re soon going to be dying.
Actually, now that you reminded me, there is a slight amount of air at that altitude which does create a minor amount of drag, particularly when the atmosphere swells during moments of increased solar activity. In fact, they need to fire its on-board boosters in order to increase its altitude during these times. Otherwise it would be going too slow to remain in orbit at that particular altitude. However, at no point here is it ever "flying". Do you think it uses its solar panels as "wings"?
