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

🇺🇸 N345XB - Bombardier Challenger 604 - Executive Jet Management SJJ345 - 4.7 mi away @ 12025 ft, heading ENE at 368 mph. Spotted once before. [01:23:54 PM CST] #A3D1F0 #N345XB #CL60 #JET_SPEED #SJJ345 #TakingOff #ADSB #ADSBbot