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

🇺🇸 N854UA - Airbus A319 131 - United Airlines UAL1577/UA1577, San Francisco (SFO) to Detroit Metro Wayne County (DTW) - 4.5 mi away @ 37525 ft, heading ENE at 581 mph. Spotted 34x before! [02:55:06 AM CDT] #ABB7F7 #N854UA #A319 #UNITED #UAL1577 #UA1577 #ADSB #ADSBbot