Studying under Dr. Collins for my masters. The stuff they are finding is flat out amazing. Specifically, they are now looking at several craters scattered throughout Jordan as the possible remains of a bolide catalyst for the airburst over Tall el-Hammam.
Have you seen the TV documentary about the theory it was an air-burst from a asteroid that was tracked by an ancient astronomer and recorded on a clay astrological chart found in the region now known as Iraq?
They also connect the asteroid to one that sheared off the top of a mountain in Austria on its trajectory south toward the Levant.
Very cool info in that documentary. Speculative, but with some physical clues that support it.