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

🇺🇸 N143SY - Embraer EMB-175 LR - United Express SKW5194/OO5194 - 6.9 mi away @ 36700 ft, heading SW at 481 mph. Spotted 25x before! [09:17:17 AM CDT] #A0AF7C #N143SY #E75L #SKYWEST #SKW5194 #OO5194 #autopilot #ADSB #ADSBbot