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

🇺🇸 N88346 - Embraer EMB-175 LR - United Express ASH3234/YV3234 - 4.5 mi away @ 36850 ft, heading NNE at 522 mph. Spotted 9x before! [10:33:04 AM CDT] #AC2BFD #N88346 #E75L #AIR_SHUTTLE #ASH3234 #YV3234 #autopilot #ADSB #ADSBbot