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

🇺🇸 N423UP - Boeing 757 24APF - United Parcel Service UPS9802/5X9802 - 3.4 mi away @ 11400 ft, heading SW at 342 mph. Spotted 13x before! [08:04:39 PM CDT] #A50894 #N423UP #B752 #UPS #UPS9802 #5X9802 #TakingOff #ADSB #ADSBbot