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

🇺🇸 N751AB - EMBRAER ERJ 170-100 SE - WILMINGTON TRUST CO TRUSTEE ENY3633/MQ3633 (ORD-BHM-ORD) - 4.1 mi away @ 33700 ft, heading NNE at 527 mph. Spotted 23x before! [11:36:04 AM CDT] #AA1DC2 #N751AB #E170 #ENY3633 #MQ3633 #autopilot #ADSB #ADSBbot