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

🇺🇸 N764JD - Embraer EMB-170 STD - American Eagle ENY4001/MQ4001 (ORD-BNA-ORD) - 3.5 mi away @ 27500 ft, heading NNE at 572 mph. Spotted 68x before! [11:55:25 AM CST] #AA5130 #N764JD #E170 #ENVOY #ENY4001 #MQ4001 #autopilot #ADSB #ADSBbot