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

🇱🇺 LX-VCG - Boeing 747 8R7F - Cargolux Airlines International ICV62N (DFW-ORD-LUX) - 4.2 mi away @ 38000 ft, heading SW at 543 mph. Spotted for first time! [06:15:23 PM CDT] #4D0107 #LX_VCG #B748 #CARGOLUX #ICV62N #ADSB #ADSBbot