I suspect objects "in orbit" are some of the easiest objects to track. Once you have a few data points, you can pretty much calculate where it will be at any given point in time. It takes a lot of energy to meaningfully alter the course of an orbiting baseball, so much so that any attempt to do so would probably result in the operator now successfully tracking a debris cloud that used to be in the form of a baseball.
Navy guys claimed it could track a baseball in orbit.