MC-12S Liberty EMARRS electronic surveillance spy plane orbiting JB McGuire-Dix-Lakehurst.
Callsign SPYDR.
SPY DR? Spy doctor?
Flying a nice precise pattern.
Probably just carrying this equipment tho.
A variant of the MC-12S carries a synthetic aperture radar with Moving Target Indicator capability known as the AN/ZPY-5 VADER, or Vehicle And Dismount Exploitation Radar. Basically, it’s a radar sensitive enough to track individuals on foot.