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

🇨🇦 C-GZQX - Embraer EMB-195 E2 - Porter Airlines POE772 - 4.8 mi away @ 38850 ft, heading NE at 620 mph. Spotted for first time! [08:07:57 PM CST] #C08864 #C_GZQX #E295 #PORTER_AIR #POE772 #autopilot #ADSB #ADSBbot