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

🇺🇸 N1806U - Boeing 737MAX 8 - Southwest Airlines SWA5926/WN5926 - 4.7 mi away @ 38425 ft, heading E at 534 mph. Spotted 44x before! [03:07:56 AM CDT] #A143E9 #N1806U #B38M #SOUTHWEST #SWA5926 #WN5926 #ADSB #ADSBbot