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

🇺🇸 N890D - Bombardier CRJ 900 LR NG - Dow Chemical Company N890D - 4.8 mi away @ 40500 ft, heading SW at 499 mph. Spotted for first time! [01:26:33 PM CDT] #AC459F #N890D #CRJ9 #N890D #ADSB #ADSBbot