Ha ha. That was 10 years ago.
We’ve got a lot about that one. :^) I was mostly water ice and debris, so it blew more easily than a stony one of the same size probably would, and yet, it got almost all the way to the surface. And it wasn’t a metropolis where it hit, yet a number of people died, and many others crapped their pants. :^)
https://freerepublic.com/tag/chelyabinsk/index?tab=articles