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

🇨🇦 C-GZQB - Embraer EMB-195 E2 - Porter Airlines POE771 - 4.2 mi away @ 35150 ft, heading SW at 498 mph. Spotted for first time! [11:54:04 AM CST] #C0884E #C_GZQB #E295 #PORTER_AIR #POE771 #autopilot #ADSB #ADSBbot