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

🇺🇸 N784DP - Embraer EMB-170 SU - American Eagle ENY3859/MQ3859, Chicago O'Hare (ORD) to Springfield-Branson Ntl (SGF) - 4.2 mi away @ 36225 ft, heading SW at 451 mph. Spotted 37x before. [09:14:28 AM CDT] #AA9FBB #N784DP #E170 #ENVOY #ENY3859 #MQ3859 #autopilot #ADSB #ADSBbot