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

🇲🇽 XA-VCU - McDonnell Douglas DC-9 83SF - Aeronaves TSM VTM292, Gary/Chicago (GYY) to Plan De Guadalupe (SLW) - 4.5 mi away @ 35950 ft, heading SW at 519 mph. Spotted 2x before! [04:27:34 PM CST] #0D0B72 #XA_VCU #MD83 #AERONAVES_TSM #VTM292 #ADSB #ADSBbot