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

🇺🇸 N235NN - Embraer EMB-175 LR - American Eagle ENY4135/MQ4135, Rapid City Regional (RAP) to Charlotte/Douglas (CLT) - 4.6 mi away @ 36675 ft, heading ESE at 542 mph. Spotted 26x before! [02:46:28 PM CDT] #A21C4C #N235NN #E75L #ENVOY #ENY4135 #MQ4135 #autopilot #ADSB #ADSBbot