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

🇺🇸 N8771D - Boeing 737MAX 8 - Southwest Airlines SWA1962/WN1962 (BWI-STL-LIT-DAL) - 3.8 mi away @ 3725 ft, heading NE at 198 mph. Spotted 47x before! [10:17:40 AM CDT] #AC12D6 #N8771D #B38M #SOUTHWEST #SWA1962 #WN1962 #Landing #ADSB #ADSBbot