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 UAL1928/UA1928, Newark Liberty (EWR) to Austin-Bergstrom (AUS) - 4.2 mi away @ 32900 ft, heading SW at 516 mph. Spotted 13x before. [09:47:29 PM CST] #A41E29 #N36444 #B739 #UNITED #UAL1928 #UA1928 #ADSB #ADSBbot