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

Sun. Jun 6, 2021 1:45 PM - 3:15 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.

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1:45 PM - 2:00 PM

[PPS04-13] Regional photometric properties on asteroid Ryugu in visible wavelength

*Yasuhiro Yokota¹, Rie Honda², Eri Tatsumi³, Deborah Domingue⁴, Stefanus E. Schröder⁵, Moe Matsuoka¹, Lucie Riu¹, Seiji Sugita⁶, Tomokatsu Morota⁶, Naoya Sakatani⁷, Chikatoshi Honda⁸, Yuichiro Cho⁶, Shingo Kameda⁷, Toru Kouyama⁹, Manabu Yamada¹⁰, Masahiko Hayakawa¹, Hiroki Senshu¹⁰, Hidehiko Suzuki¹¹, Kazuo Yoshioka⁶, Hirotaka Sawada¹, Kazunori Ogawa¹ (1.ISAS/JAXA, Japan, 2.Kochi Univ., Japan, 3.Instituto de Astrofisica de Canarias, Univ. of La Laguna, Spain, 4.Planetary Science Institute, USA, 5.DLR, Germany, 6.Univ. of Tokyo, Japan, 7.Rikkyo Univ., Japan, 8.Univ. of Aizu, Japan, 9.AIST, Japan, 10.Chiba Inst. Tech, Japan, 11.Meiji Univ., Japan)

2:00 PM - 2:15 PM

[PPS04-14] Spectrophotometric behavior of Ryugu’s surface as inferred from the Hayabusa2/NIRS3 data

*Andrea Longobardo¹, Ernesto Palomba^1,2, Anna Galiano¹, Fabrizio Dirri¹, Angelo Zinzi², Mario D'Amore³, Deborah Domingue⁴, Kohei Kitazato⁵, Takahiro Iwata⁶, Moe Matsuoka⁶, Takahiro Hiroi⁷, Driss Takir⁸, Tomoki Nakamura⁹, Masanao Abe⁵, Makiko Ohtake⁵, Shuji Matsuura¹⁰, Sei-ichiro WATANABE^6,11, Makoto Yoshikawa⁶, Takanao Saiki⁶, Tatsuaki Okada⁶, Yukio Yamamoto⁶, Yoh Takei⁶, Kei Shirai⁶, Naru Hirata⁵, Naoyuki Hirata¹², Koji Matsumoto¹³, Yuichi Tsuda⁶ (1.Istituto Nazionale di Astrofisica - Istituto di Astrofisica e Planetologia Spaziali, Rome, Italy, 2.ASI-SSDC, Rome, Italy, 3.German Aerospace Center, Institute of Planetary Research, Berlin, Germany, 4.PSI, Tucson, AZ, USA, 5.University of Aizu, Aizu-Wakamatsu 965-8580, Fukushima, Japan, 6.ISAS-JAXA, Japan, 7.Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, USA, 8.Jacobs/NASA Johnson Space Center, USA, 9.Tohoku University, Miyagi, Japan, 10.Kwansei Gakuin University, Hyogo, Japan, 11.Nagoya University, Nagoya 464-8601, Japan, 12.Kobe University, Kobe 657-8501, Japan, 13.National Astronomical Observatory of Japan, Mitaka 181-8588, Japan)

2:15 PM - 2:30 PM

[PPS04-15] Laboratory spectral constraints on the composition and origin of Phobos: Reconciling the Vis-NIR/Mid-IR contradictions

*Matthew Izawa¹, Sandra Potin², Edward Cloutis² (1.Institute for Planetary Materials, 2.University of Winnipeg)

2:30 PM - 2:45 PM

[PPS04-16] UNSUPERVISED LEARNING OF NIRS3 DATA: RYUGU SPECTRAL SURFACE REGIONS CLASSIFICATION

*Mario D'Amore¹, E. Palomba^2,3, A. Galiano², A. Zinzi³, F. Dirri², A. Longobardo², K. Kitazato⁴, T. Iwata⁵, M. Matsuoka⁵, T. Hiroi⁶, D. Takir⁷, T. Nakamura⁸, M. Abe⁵, M.y Ohtake⁵, S. Matsuura⁹, S. Watanabe¹⁰, M. Yoshikawa⁵, T. Saiki⁵, S. Tanaka⁵, T. Okada⁵, Y. Yamamoto⁵, Y. Taikei⁵, K. Shirai⁵, N. Hirata^11,4, K. Matsumoto¹², Y. Tsuda⁵ (1.German Aerospace Center, Institute of Planetary Research, Berlin, Germany, 2.INAF-IAPS, Rome, Italy, 3.SSDC-ASI, Rome, Italy, 4.University of Aizu, Aizu-Wakamatsu 965-8580, Fukushima, Japan, 5.Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency, Sagamihara, 252-5210, Japan, 6.Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, USA, 7.Jacobs/NASA Johnson Space Center, USA, 8.Tohoku University, Miyagi, Japan, 9.Kwansei Gakuin University, Hyogo, Japan, 10.Nagoya University, Nagoya 464-8601, 11.Kobe University, Kobe 657-8501, Japan, 12.National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.)

2:45 PM - 3:00 PM

[PPS04-17] Quantitative analysis of spectral evolution of craters, boulders, and regolith on Ryugu and Bennu

*Koki Yumoto¹, Eri Tatsumi^2,1, Tatsuki Ebihara¹, DellaGiustina Daniella³, Naofumi Takaki¹, Tomokatsu Morota¹, Yuichiro Cho¹, Golish Dathon³, Rie Honda⁴, Shingo Kameda⁵, Yasuhiro Yokota⁶, Naoya Sakatani⁵, Toru Kouyama⁷, Sawada Hirotaka⁶, Masahiko Hayakawa⁶, Matsuoka Moe⁶, Manabu Yamada⁸, Hidehiko Suzuki⁹, Chikatoshi Honda¹⁰, Kazunori Ogawa^11,12, Kazuo Yoshioka¹, Seiji Sugita¹ (1.University of Tokyo, 2.Instituto de Astrofísica de Canarias, 3.Lunar and Planetary Laboratory, Univ. of Arizona, 4.Kochi Univ., 5.Rikkyo Univ., 6.ISAS/JAXA, 7.Inst. of Adv. Ind. Sci. and Tech., 8.Chiba Inst. of Tech., 9.Meiji Univ., 10.Univ. of Aizu, 11.JSEC/JAXA, 12.Kobe Univ.)

3:00 PM - 3:15 PM

[PPS04-18] Bennu's Global Geologic Map Reveals the Last Epoch of Resurfacing

*Erica R Jawin¹, Timothy J McCoy¹, Kevin John Walsh², Harold C Connolly³, Ronald L Ballouz⁴, Andrew Joseph Ryan⁴, Maurizio Pajola⁵, Olivier S Barnouin⁶, Hannah H kaplan⁷, Vicky E Hamilton², Josh P Emery⁸, Daniella N Dellagiustina⁴, Daniel Jay Scheeres⁹, Michael G Daly¹⁰, Carina A Bennett⁴, Dathon R Golish⁴, Mark Perry⁶, R Terik Daly⁶, E Beau Bierhaus¹¹, Michael C Nolan⁴, Heather L Enos⁴, Dante S Lauretta⁴ (1.Smithsonian National Museum of Natural History, 2.Southwest Research Institute, 3.Rowan University, 4.University of Arizona, 5.INAF-Astronomical Observatory of Padova, 6.Johns Hopkins University Applied Physics Laboratory, 7.Goddard Space Flight Research Center, 8.Northern Arizona University, 9.University of Colorado, Boulder, 10.York University, 11.Lockheed Martin Space)

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