Re: [math-fun] Size of the Cherbakul Lake Meteorite Fragment

meekerdb:

I've observed that even projectiles that hit the earth obliquely tend to make circular craters.

To whet our mathematical appetites, Stefan Geens has done an admirable job of estimating a final approach trajectory: http://ogleearth.com/2013/02/reconstructing-the-chelyabinsk-meteors-path-wit...