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

🇺🇸 N36444 - Boeing 737NG 924ER/W - United Airlines UAL210/UA210, Chicago O'Hare (ORD) to Austin-Bergstrom (AUS) - 4.4 mi away @ 36625 ft, heading SW at 446 mph. Spotted 11x before! [09:50:20 AM CST] #A41E29 #N36444 #B739 #UNITED #UAL210 #UA210 #ADSB #ADSBbot