“Unknown owner”. Things that make you go “Hmmmmmm…”
I can’t find anything anywhere, maybe military contractor of some type judging by all the bases the fly to. flightaware.com/live/flight/RTD51
Seeing quite a few more of these- all over. All LJ35’s. Weird.
L3 Communications Flight International is “RTD”.
They do lots of electronic warfare/countermeasures training with these aircraft. Unique airplanes; Lear 35 with hardpoints under the wings.