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

🇺🇸 N8773Q - Boeing 737MAX 8 - Southwest Airlines SWA8842/WN8842, William P Hobby (HOU) to Chicago Midway (MDW) - 4.9 mi away @ 39500 ft, heading NNE at 556 mph. Spotted 58x before! [07:46:39 PM CST] #AC1327 #N8773Q #B38M #SOUTHWEST #SWA8842 #WN8842 #ADSB #ADSBbot