CF-18 Is a Canadian jet that tracks Santa like the many other jets. It tracks him as Santa goes to his many stops around the globe.
"(F-16s, F-15s, F-22s and CF-18s) have intercepted Santa many, many times. When the jets intercepts Santa, they tip their wings to say, “Hello Santa! – NORAD is tracking you again this year!” Santa always waves. He loves to see the pilots!" - NORAD