Japan Geoscience Union Meeting 2021

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[E] Oral

P (Space and Planetary Sciences ) » P-PS Planetary Sciences

[P-PS04] Small Solar System Bodies: A New Insight from Hayabusa2, OSIRIS-REx and Other Space Missions

Sun. Jun 6, 2021 3:30 PM - 5:00 PM Ch.04 (Zoom Room 04)

convener:Tatsuaki Okada(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Taishi Nakamoto(Tokyo Institute of Technology), Daisuke Kuroda(Kyoto University), Chairperson:Tatsuaki Okada(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Taishi Nakamoto(Tokyo Institute of Technology), YACHEN YANG(Center for Space and Remote Sensing Research)

Small Solar System bodies, including asteroids, comets, satellites, and interplanetary dust particles, are notably important for understanding the origin and evolution of our Solar System, as well as investigating the sources of building blocks of life. Many new discoveries on small bodies have been carried out by observations from ground-based and space-based observatories, and explorations by spacecraft rendezvous and flyby. New perspectives on solar system evolution have been paved by analyses of extraterrestrial materials such as meteorites, IDPs, and return samples by space missions. Numerical and laboratory simulation studies have helped interpretations for those results and proposed new insights on these topics. In this session, new results of scientific studies and new ideas of methodology for investigating small solar system bodies are highly welcome, especially the topics on the remote sensing, surface experiments, and analysis of return sample in the Hayabusa2 and OSIRIS-REx missions, as well as the expectations and preparations for future missions including MMX, Destiny+, Hera, Comet Interceptor, and Hayabusa2-Extended missions.

3:30 PM - 3:50 PM

[PPS04-19] Impact histories inferred from exogenic boulders on asteroids Ryugu and Bennu

★Invited Papers

*ERI TATSUMI1,2, Chiho Sugimoto2, Seiji Sugita2, Marcel Popescu4, Humberto Campins11, Julia de León3, Amy A. Simon5, Hannah H. Kaplan6, Yuichiro Cho2, Tomokatsu Morota2, Rie Honda7, Shingo Kameda8, Yasuhiro Yokota3, Koki Yumoto2, Minami Aoki2, Daniella N. DellaGiustina10, Dathon R. Golish10, Javier Licandro1, Juan Luis Rizos1, Takahiro Hiroi12, Deborah Domingue13, Michel Patrick14, Dante S. Lauretta10, Manabu Yamada15, Naoya Sakatani8, Toru Kouyama9, Chikatoshi Honda16, Masahiko Hayakawa3, Moe Matsuoka3, Hidehiko Suzuki17, Kazunori Ogawa3, Hirotaka Sawada3 (1.Instituto de Astrofisica de Canarias, 2.Univ. of Tokyo, 3.ISAS/JAXA, 4.Astronomical Institute of the Romanian Academy, 5.NASA Goddard Space Flight Center, 6.Southwest Research Institute, 7.Kochi Univ., 8.Rikkyo Univ., 9.AIST, 10.Univ. of Arizona, 11.Univ. of Central Florida, 12.Brown Univ., 13.Planetary Science Institute, 14.Observatoire de la Côte d’Azur, 15.Chiba Institute of Tech., 16.Univ. of Aizu, 17.Meiji Uni.)

3:50 PM - 4:10 PM

[PPS04-20] The ESA Hera mission: rendezvous with a binary asteroid, planetary defense and science

★Invited Papers

*Patrick Michel1, Michael Kueppers2, Alan Fitzsimmons3, Simon F. Green4, Monica Lazzarin5, Stephan Ulamec6, Ian Carnelli7, Paolo Martino7 (1.Universite Côte D'Azur, Observatoire De La Côte D'Azur, CNRS, Laboratoire Lagrange, 2.ESA-European Space Astronomy Centre, 3.Queen's University Belfast, 4.The Open University, 5.Padova University, 6.DLR RB-MUSC, 7.ESA-ESTEC)

4:10 PM - 4:25 PM

[PPS04-21] Hayabusa2 Extended Mission to rendezvous with Asteroid 1998 KY26: Investigations of an extremely small fast rotator for planetary defense

*Masatoshi Hirabayashi1, Y. Mimasu2, N. Sakatani3, S. Watanabe4, Y. Tsuda2, T. Saiki2, S. Kikuchi2, T. Kouyama5, M. Yoshikawa2, S. Tanaka2, S. Nakazawa2, Y. Takei2, F. Terui2, H. Takeuchi2, A. Fujii2, T. Iwata2, K. Tsumura6, S. Matsuura7, Y. Shimaki2, S. Urakawa8, Y. Ishibashi9, S. Hasegawa2, M. Ishiguro10, D. Kuroda11, S. Okumura8, S. Sugita12, T. Okada2, S. Kameda3, S. Kamata13, A. Higuchi14, H. Senshu15, H. Noda16, K. Matsumoto16, R. Suetsugu17, T. Hirai15, K. Kitazato18 (1.Auburn University, 2.Japan Aerospace Exploration Agency, 3.Rikkyo University, 4.Nagoya University, 5.National Institute of Advanced Industrial Science and Technology, 6.Tokyo City University, 7.Kwansei Gakuin University, 8.Japan Spaceguard Association, 9.Hosei University, 10.Seoul National University, 11.Kyoto University, 12.University of Tokyo, 13.Hokkaido University, 14.University of Occupational and Environmental Health, 15.Chiba Institute of Technology, 16.National Astronomical Observatory of Japan, 17.National Institute of Technology, 18.University of Aizu)

4:25 PM - 4:40 PM

[PPS04-22] Highly Time-Resolved Photometric Observations of Tiny Near Earth Objects with the Tomo-e Gozen Camera

*Jin Beniyama1, Shigeyuki Sako1, Ryou Ohsawa1, Satoshi Takita1, Naoto Kobayashi1, Shin-ichiro Okumura2, Seitaro Urakawa2, Fumihiko Usui3, Fumi Yoshida4,5, Makoto Yoshikawa3 (1.Institute of Astronomy, Graduate School of Science, The University of Tokyo, 2.Japan Spaceguard Association, 3.Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 4.University of Occupational and Environmental Health, 5.Planetary Exploration Research Center, Chiba Institute of Technology)


4:40 PM - 4:55 PM

[PPS04-23] Color and size distributions of main belt asteroids obtained by the Subaru/Hyper Suprime-Cam

*Natsuho Maeda1, Tsuyoshi Terai2, Keiji Ohtsuki1, Fumi Yoshida3,4, Kosuke Ishihara1,2,5, Takuto Deyama1,6 (1.Graduate school of science, Kobe University , 2.National Astronomical Observatory of Japan, 3.Chiba Institute of Technology, 4.University of Occupational and Environmental Health, 5.The Graduate University for Advanced Studies, 6.NTT Data MSE Corporation)

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