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

🇺🇸 N8772M - Boeing 737MAX 8 - Southwest Airlines SWA2371/WN2371, John Glenn Columbus (CMH) to St Louis Lambert (STL) - 3.6 mi away @ 4050 ft, heading N at 270 mph. Spotted 48x before! [08:56:12 AM CDT] #AC1301 #N8772M #B38M #SOUTHWEST #SWA2371 #WN2371 #Landing #Arrival #ADSB #ADSBbot