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

🇺🇸 N27304 - Boeing 737MAX 8 - United Airlines UAL690/UA690 (RDU-DEN-SEA) - 4.5 mi away @ 36975 ft, heading W at 512 mph. Spotted 10x before! [07:48:39 AM CDT] #A2B416 #N27304 #B38M #UNITED #UAL690 #UA690 #ADSB #ADSBbot