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

🇺🇸 N8951S - BOEING 737 MAX 8 - SOUTHWEST AIRLINES CO SWA2810/WN2810, Gerald R Ford (GRR) to Denver (DEN) - 4.8 mi away @ 38050 ft, heading SW at 528 mph. Spotted 12x before! [08:28:48 AM CDT] #AC5A73 #N8951S #B38M #SWA2810 #WN2810 #ADSB #ADSBbot