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

🇹🇷 TC-LJN - Boeing 777 F - Turkish Airlines THY6303/TK6303 (IST-ORD-IAH) - 5.2 mi away @ 42100 ft, heading SW at 552 mph. Spotted 3x before! [04:34:02 PM CDT] #4BB14E #TC_LJN #B77L #TURKISH #THY6303 #TK6303 #ADSB #ADSBbot