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

🇺🇸 N121CZ - Embraer EMB-120 ER - Air Charter Express FRG649, Del Rio (DRT) to Willow Run (YIP) - 3.6 mi away @ 26825 ft, heading NE at 470 mph. Spotted 2x before! [05:13:43 PM CST] #A057B3 #N121CZ #E120 #FRG649 #ADSB #ADSBbot