No secret, just google. I speculated the distribution may not be symmetrical, thinking there could be an excess of strikes along the ecliptic being fed by the a

No secret, just google. I speculated the distribution may not be symmetrical, thinking there could be an excess of strikes along the ecliptic being fed by the asteroid belt and guessed what terms would crop up in a paper that discussed the topic (I find that is the best way to search for something - don't ask the question, but search for what you think the answer would look like). Actually what I thought I would find is radar data showing actual counts of meteor strikes, but no joy - I suspect the military knows what they are but they are not saying. Of course there could be more recent papers hidden behind a paywall, but ADS didn't bring up any obvious abstracts.