Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 84-0075 - Gates C-21A - United States Air Force SPAR815 - 3.4 mi away @ 25775 ft, heading WNW at 367 mph. Spotted 17x before! [07:22:18 AM CDT] #AE016D #reg_840075 #LJ35 #SIERRA_PACIFIC #SPAR815 #military #ADSB #ADSBbot