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

🇺🇸 N778RH - Embraer EMB-170 SE - American Eagle ENY3869/MQ3869, Birmingham-Shuttlesworth (BHM) to Chicago O'Hare (ORD) - 4.7 mi away @ 38150 ft, heading NNE at 541 mph. Spotted 47x before! [05:54:40 PM CDT] #AA883E #N778RH #E170 #ENVOY #ENY3869 #MQ3869 #autopilot #ADSB #ADSBbot