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

🇺🇸 N371UP - Boeing 767 300F - United Parcel Service UPS5923/5X5923, Ontario (ONT) to Louisville Muhammad Ali (SDF) - 4.9 mi away @ 39250 ft, heading ESE at 544 mph. Spotted 34x before! [10:14:19 AM CDT] #A43952 #N371UP #B763 #UPS #UPS5923 #5X5923 #ADSB #ADSBbot