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

🇺🇸 N531GJ - Bombardier CRJ 700 702 - United Express SKW5528/OO5528, Tulsa (TUL) to Chicago O'Hare (ORD) - 4.7 mi away @ 39475 ft, heading NNE at 564 mph. Spotted 11x before! [08:52:42 PM CDT] #A6B4C3 #N531GJ #CRJ7 #LINDBERGH #SKW5528 #OO5528 #ADSB #ADSBbot