@hairysteve20@BadAstronomer I have not heard for certain, but my assumption (guess) is that the moon hit the spacecraft as the asteroid and moon are likely to be going faster than the DART. If so, the impact would have been on the side of forward motion of the moon (to the right in the first video).
@BadAstronomer I have lost count of the nights I have spent at the telescope on mountain tops when it was clear at
nearby towns but we were sitting in clouds (moving very fast) thanks to this effect.