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

🇱🇺 LX-RCV - Boeing 747 4R7F - Cargolux Airlines International CLX6696/CV6696 (NLU-ORD-LUX) - 5.0 mi away @ 41875 ft, heading NNE at 525 mph. Spotted for first time! [02:13:34 AM CST] #4D0110 #LX_RCV #B744 #CARGOLUX #CLX6696 #CV6696 #ADSB #ADSBbot