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

🇺🇸 N475LS - Bombardier Learjet 75 - Northern Jet Management Inc NJM475, Dupage (DPA) to Austin-Bergstrom (AUS) - 5.4 mi away @ 43800 ft, heading SW at 433 mph. Spotted 2x before. [02:46:00 PM CDT] #A5D4B8 #N475LS #LJ75 #NORTHERN_JET #NJM475 #ADSB #ADSBbot