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

🇺🇸 N204TW - Dassault Falcon 20 DC - Ameristar AJI545/7Z545, Laredo (LRD) to Central Il Regional/Bloomington-Normal (BMI) - 3.4 mi away @ 27075 ft, heading NE at 435 mph. Spotted once before. [11:54:42 PM CST] #A1A29D #N204TW #FA20 #AMERISTAR #AJI545 #7Z545 #ADSB #ADSBbot