Rendezvous_with_Rama is quite an interesting story.
https://www.goodreads.com/book/show/112537.Rendezvous_with_Rama
https://www.tor.com/2021/03/18/hi-stranger-new-in-town-rendezvous-with-rama-by-arthur-c-clarke/
"After an asteroid falls in Northeast Italy on 11 September 2077, creating a major disaster, the government of Earth sets up the Spaceguard system as an early warning of arrivals from deep space..." https://en.wikipedia.org/wiki/Rendezvous_with_Rama#Plot (11/9 or 9-11)
https://skullsinthestars.com/2014/01/11/arthur-c-clarkes-rendezvous-with-rama/
https://en.wikipedia.org/wiki/Rendezvous_with_Rama#Design_and_geography_of_Rama
https://www.fantasybookreview.co.uk/Arthur-C-Clarke/Rendezvous-With-Rama.html
https://www.scmp.com/article/995133/comet-heading-straight-earth-dont-panic
https://theportalist.com/rendezvous-with-rama-movie
https://en.wikipedia.org/wiki/Rendezvous_with_Rama#Film
Rendezvous With Rama: Why Villeneuve's New Sci-Fi Film Could Be Incredible! https://www.youtube.com/watch?v=ufvqYnAA7GA
The # 911 is interwoven in literature or media and throughout history in general.