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

🇺🇸 N114YV - Aeronautical Radio XAA4916, Cincinnati Municipal/Lunken Field (LUK) to Sacramento Mather (MHR) - 4.9 mi away @ 39950 ft, heading W at 423 mph. Spotted for first time! [12:17:26 PM CST] #A03D49 #N114YV #ROCKFISH #XAA4916 #autopilot #ADSB #ADSBbot