When travelling between [planet=nauvis] and [planet=vulcanus] and with 300% bonus productivity, it generates roughly 2350 [item=iron-ore,quality=legendary]/min, 150[item=carbon,quality=legendary]/min, 60[item=sulfur,quality=legendary]/min and 60[item=calcite,quality=legendary]/min. Does not require any research in asteroid processing productivity, but it is of course recommended.