Asteroid Ryugu Before the Hayabusa2 Encounter

摘要: Asteroid (162173) Ryugu is the target object of Hayabusa2, an asteroid exploration and sample return mission led by Japan Aerospace Exploration Agency (JAXA). Ground-based observations indicate that a C-type near-Earth with diameter less than 1 km, but knowledge its detailed properties still very limited. This paper summarizes our best understanding physical dynamical based on remote sensing theoretical modeling. information used to construct design reference model for formulation operations plans in advance arrival. Particular attention given surface are relevant acquisition. helps readers appropriately interpret data will be directly obtained Hayabusa2 promotes scientific studies not only itself other small bodies also Solar System evolution shed light on.