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

🇨🇳 B-LJN - Boeing 747 867F - Cathay Pacific Airways CPA2082/CX2082 (HKG-ANC-ORD-DFW) - 5.2 mi away @ 42775 ft, heading SW at 529 mph. Spotted 2x before! [12:17:30 PM CST] #780AA8 #B_LJN #B748 #CATHAY #CPA2082 #CX2082 #ADSB #ADSBbot