The physics package contained within the B83 has been studied for use in asteroid impact avoidance strategies against any seriously threatening near earth asteroids. Six such warheads, configured for the maximum 1.2 Mt yield, would be deployed by maneuvering space vehicles to "knock" an asteroid off course, should it pose a risk to the Earth.
I am thinking that if it is of a size that we can impact its tragectory AT ALL with todays technology, its gonna be small enough to burn up in the atmospjere. (?)
This one is around 30 meters across. How big does one have to be to make it thru to even impact earth, let alone do damage?