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

🇺🇸 N8997Q - SOUTHWEST AIRLINES CO SWA2247/WN2247, General Mitchell (MKE) to Austin-Bergstrom (AUS) - 4.3 mi away @ 37175 ft, heading SSW at 478 mph. Spotted for first time! [02:24:28 PM CDT] #AC6A1F #N8997Q #B38M #SWA2247 #WN2247 #ADSB #ADSBbot