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

🇺🇸 N776MS - Embraer EMB-170 SE - American Eagle ENY3481/MQ3481, Memphis (MEM) to Chicago O'Hare (ORD) - 4.1 mi away @ 31100 ft, heading N at 420 mph. Spotted 41x before! [09:02:48 AM CDT] #AA8075 #N776MS #E170 #ENVOY #ENY3481 #MQ3481 #autopilot #ADSB #ADSBbot