Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N458UP - Boeing 757 24APF - United Parcel Service UPS766/5X766, Chicago/Rockford (RFD) to George Bush Intcntl/Houston (IAH) - 3.4 mi away @ 30275 ft, heading SSW at 489 mph. Spotted 2x before. [02:20:52 AM CST] #A591A4 #N458UP #B752 #UPS #UPS766 #5X766 #ADSB #ADSBbot