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

🇺🇸 N494UA - Airbus A320 232 - United Airlines UAL487/UA487, San Francisco (SFO) to Indianapolis (IND) - 4.4 mi away @ 35825 ft, heading E at 579 mph. Spotted 51x before. [04:11:06 PM CDT] #A620B7 #N494UA #A320 #UNITED #UAL487 #UA487 #ADSB #ADSBbot