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

🇺🇸 N77558 - Boeing 737MAX 9 - United Airlines UAL2090/UA2090, Newark Liberty (EWR) to San Diego (SAN) - 4.2 mi away @ 35725 ft, heading WSW at 497 mph. Spotted 5x before! [11:03:25 AM CDT] #AA7EC2 #N77558 #B39M #UNITED #UAL2090 #UA2090 #ADSB #ADSBbot