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

🇺🇸 N152SY - Embraer EMB-175 LR - United Express SKW5247/OO5247, Nashville (BNA) to Chicago O'Hare (ORD) - 3.7 mi away @ 29325 ft, heading NNE at 517 mph. Spotted 50x before. [11:47:02 AM CST] #A0D344 #N152SY #E75L #SKYWEST #SKW5247 #OO5247 #autopilot #ADSB #ADSBbot