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

🇨🇦 C-GZQR - Embraer EMB-195 E2 - Porter Airlines POE770 - 4.6 mi away @ 39400 ft, heading NE at 645 mph. Spotted for first time! [12:47:41 AM CST] #C0885E #C_GZQR #E295 #PORTER_AIR #POE770 #autopilot #ADSB #ADSBbot