That's why the Cassini images are important...
by comparing the crater data from different bodies at different locations in our Solar System, it should allow some factoring out of asteroid versus comet impacts -
the problem is getting accurate comprehensive raw counts, and that requires computer image processing -
that's why getting the money to develop those systems was so important back in 2000, and its still important today - SWRI needs more money, and other brainpower needs to be brought in - Cornell, Carnegie Mellon, MIT, and some from places I don't know about...
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