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

🇺🇸 N920NN - Boeing 737NG 823/W - American Airlines AAL101G/AA101G (DFW-DTW-DFW) - 4.4 mi away @ 36050 ft, heading SW at 515 mph. Spotted 37x before! [12:45:21 PM CDT] #ACBF63 #N920NN #B738 #AMERICAN #AAL101G #AA101G #ADSB #ADSBbot