🇺🇸 84-0142 - Gates C-21A - United States Air Force SPAR266 - 4.1 mi away @ 21675 ft, heading WNW at 369 mph. Spotted 12x before. [03:32:09 PM CDT] #AE017A #reg_840142 #LJ35 #SPAR266 #military #ADSB #ADSBbot