Map of the St. Louis area showing the position and track of the aircraft described in the post.
πΊπΈ N121SY - Embraer EMB-175 LR - United Express SKW5759/OO5759, Memphis (MEM) to Chicago O'Hare (ORD) - 4.0 mi away @ 32475 ft, heading NNE at 519 mph. Spotted 30x before. [08:13:28 AM CST] #A05910 #N121SY #E75L #SKYWEST #SKW5759 #OO5759 #autopilot #ADSB #ADSBbot