I experiment around with tracking airplanes ,satellites, and UFO's (not to many ufo's) using Dahua ptz cameras. It is an interesting hobby. There is this fellow on YouTube who has a very neat tracking system at las Vegas International Airport. He is very secretive about his system but I believe he uses some ip cameras. If you care to look I have a link to view his channel. This is a clip showing the detection (green boxes) around the aircraft. I know he has several cameras including one that had a mirror lens on it. I am interested in hearing what you think.