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

🇺🇸 N24706 - Boeing 737NG 724/W - United Airlines UAL590T/UA590T (BWI-ORD-DFW) - 5.0 mi away @ 42175 ft, heading SW at 511 mph. Spotted 13x before! [11:33:18 PM CDT] #A24C77 #N24706 #B737 #UNITED #UAL590T #UA590T #ADSB #ADSBbot