In fact , all the known MISC@1 asteroids taken together account for only about NUMBER@1 % of the ejected volume , with the rest presumably either in small fragments , ejected by approaching the NUMBER@2 Kirkwood gap , or perturbed away by the Yarkovsky effect or radiation pressure .

In fact , all the known MISC@1 asteroids taken together account for only about NUMBER@1 % of the ejected volume , with the rest presumably either in small fragments , ejected by approaching the NUMBER@2 Kirkwood gap , or perturbed away by radiation pressure .
