Key Technology Development of the Sampling Device for the Primitive Body Exploration Program of Japan

Abstract

In the Primitive Body Exploration Program of Japan, we are aiming for sample return missions, by following the Hayabusa's heritage, from surfaces and potentially sub-surfaces of C-type asteroids and CAT objects or D-type asteroids within the next decade. Thus we are currently developing new sampling systems suitable for such targets. In particular, the impact sampling system with corer projectiles and a microgravity tether retraction system as well as tape tether mechanism are evaluated in the microgravity condition. This study summarizes results of those endeavors and future prospects of this challenge.