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

🇺🇸 N54HA - Bombardier Challenger 300 - Clay Lacy Aviation Inc N54HA - 4.5 mi away @ 40675 ft, heading SSE at 639 mph. Spotted for first time! [03:31:03 PM CST] #A6D643 #N54HA #CL30 #CLAY_LACY #N54HA #ADSB #ADSBbot