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

🇺🇸 N886MT - Gulfstream Aerospace G280 - Jet Aviation Flight Services N886MT - 5.2 mi away @ 42200 ft, heading WSW at 500 mph. Spotted for first time! [03:47:48 PM CDT] #AC3544 #N886MT #G280 #JET_SETTER #N886MT #ADSB #ADSBbot