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

🇺🇸 N19136 - Boeing 757 224/W - United Airlines UAL1960/UA1960, Newark Liberty (EWR) to San Francisco (SFO) - 6.3 mi away @ 29675 ft, heading W at 534 mph. Spotted once before! [08:28:57 AM CDT] #A16EC2 #N19136 #B752 #UNITED #UAL1960 #UA1960 #ADSB #ADSBbot