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

🇺🇸 N528FE - McDonnell Douglas MD-11 F - FedEx Express FDX309/FX309 - 4.5 mi away @ 35850 ft, heading NNE at 510 mph. Spotted 3x before! [05:42:16 PM CDT] #A6A728 #N528FE #MD11 #FEDEX #FDX309 #FX309 #ADSB #ADSBbot