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

🇱🇺 LX-MCL - Boeing 747 4HAERF - Cargolux Airlines International CLX74K/CV74K (IAH-MIA-PIK-LUX) - 4.5 mi away @ 37225 ft, heading NNE at 572 mph. Spotted for first time! [09:27:11 PM CDT] #4D012F #LX_MCL #B744 #CARGOLUX #CLX74K #CV74K #ADSB #ADSBbot