https://en.wikipedia.org/wiki/99942_Apophis
99942 Apophis is a near-Earth asteroid and a potentially hazardous object with a diameter of 370 metres (1,210 feet)......
The rock that made the Meteor Crater was between 100 and 160 feet in diameter.
https://meteorcrater.com/learn/the-barringer-crater/
The Shoemaker-Levy 9 comet had a pre-discovery interaction with Jupiter which broke it into pieces, and when discovered was on a terminal trajectory. The opportunity to observe and/or record such large impacts (without having them hit the Earth anyway) got most fired up — yet, even a short time before the impacts began, Nature published a paper that basically denigrated the overall, uh, impact of the impacts.
The author could barely have been more wrong. I wonder what his FR nick is?
https://www.nature.com/articles/370094a0
https://search.brave.com/search?q=%22The+big+fizzle+is+coming%22