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

🇺🇸 N323NB - Airbus A319 114 - Delta Air Lines DAL1620/DL1620 (ATL-RAP-ATL) - 5.0 mi away @ 39225 ft, heading SE at 539 mph. Spotted 14x before! [03:35:19 PM CDT] #A37AA3 #N323NB #A319 #DELTA #DAL1620 #DL1620 #ADSB #ADSBbot