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

🇺🇸 N434UP - Boeing 757 24APF - United Parcel Service UPS633/5X633, St Louis Lambert (STL) to Chicago/Rockford (RFD) - 3.5 mi away @ 9900 ft, heading SE at 315 mph. Spotted 9x before! [11:03:13 PM CDT] #A533CA #N434UP #B752 #UPS #UPS633 #5X633 #TakingOff #Departure #ADSB #ADSBbot