We studied 242,000 ejecta boulders and 84,000 secondary craters of Censorinus crater.
Spatial variation of size and shape of the ejecta boulders is characterized.
Spatial variation of secondary and primary craters in the ejecta is characterized.
Oblique impact explains asymmetric distribution, size and shape of ejecta boulders.
The boulder characteristics are more complex than the theoretical spallation models.