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

🇺🇸 N17317 - Boeing 737MAX 8 - United Airlines UAL1992/UA1992 (AUS-EWR-IAD) - 4.4 mi away @ 39250 ft, heading NE at 653 mph. Spotted 11x before! [09:18:02 AM CST] #A126ED #N17317 #B38M #UNITED #UAL1992 #UA1992 #ADSB #ADSBbot