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

🇺🇸 N13716 - Boeing 737NG 724/W - United Airlines UAL590C/UA590C (BWI-ORD-DFW) - 4.5 mi away @ 40100 ft, heading WSW at 474 mph. Spotted 26x before! [10:15:49 PM CDT] #A097CC #N13716 #B737 #UNITED #UAL590C #UA590C #ADSB #ADSBbot