U015
Spacecraft at asteroids and comets: journey to the origin of the Earth

Session ID#: 84653

Session Description:
Asteroids and comets are the “living fossils” of the building blocks of the planets, because they are expected to have experienced minimal alterations since the early days of the Solar System. Observations have revealed the presence of water (including hydrated minerals) and organics on both carbonaceous asteroids and comets, suggesting that their delivery to Earth might be closely connected with the development of the habitable environment. This has resulted in a global movement in space missions to both explore and return samples from these small bodies and we are now harvesting the first fruits of this movement. The session highlights on the latest results of JAXA’s Hayabusa2 to carbonaceous asteroid Ryugu, and compares them with the results of NASA’s OSIRIS-REx to carbonaceous asteroid Bennu and ESA’s Rosetta to comet Churyumov–Gerasimenko. Together, the session will introduce future international plans on uncovering conditions needed for building habitable planets around a star.
Index Terms:

5205 Formation of stars and planets [PLANETARY SCIENCES: ASTROBIOLOGY]
5215 Origin of life [PLANETARY SCIENCES: ASTROBIOLOGY]
6205 Asteroids [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6210 Comets [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]


Primary Convener:  Seiichiro Watanabe, Nagoya Univ., Nagoya, Japan
Conveners:  Masaki Fujimoto, JAXA, Sgamihara, Japan, Lori Sherea Glaze, NASA Headquarters, Planetary Science Division, Washington, DC, United States and Masatoshi Hirabayashi, Auburn University, Aerospace Engineering, Auburn, AL, United States
Primary Liaison:  Seiichiro Watanabe, Nagoya Univ., Nagoya, Japan
 
In-Situ Investigation of Asteroid (162173) Ryugu by the Hayabusa2 MASCOT Lander (Invited) (488948)
Matthias Grott1, Ralf Jaumann2, Karl-Heinz Glassmeier3, J.-P. Bibring4, T.-M. Ho5, David Hercik3, Hans Ulrich Auster3, Jens Biele6, Lorda Laurence7, Aurelie Moussi7, Maximiliam Hamm8, Knollenberg Joerg9, Nicole Schmitz10, Stefan Schroeder10,11, Katharina A. Otto12, Christian Krause13, Cedric Pilorget14, Vincent Hamm14, Hajime Yano15, Tatsuaki Okada16, Naoya Sakatani17, Reill Josef18, Kaname Sasaki19, Markus Schlotterer19, Yuichi Tsuda16, Stephan Ulamec6, Friederike Wolff18, Patrick Michel20, Marco Delbo21, Kazunori Ogawa22, Hiroki Senshu23, Frank Preusker24, Frank Scholten9, Stefan Elgner9, Stefano Mottola9, Ekkehard Kuhrt25, Takanao Saiki16 and Yuya Mimasu26, (1)German Aerospace Ctr DLR, Berlin, Germany, (2)German Aerospace Ctr, Berlin, Germany, (3)Technische Universität Braunschweig, Braunschweig, Germany, (4)Univ. de Paris Sud-Orsay, IAS, Orsay, France, (5)German Aerospace Center DLR Bremen, Bremen, Germany, (6)German Aerospace Center DLR Cologne, Cologne, Germany, (7)National Centre for Space Studies, CNES, Toulouse, France, (8)German Aerospace Center DLR, Berlin, Germany, (9)German Aerospace Center (DLR), Berlin, Germany, (10)German Aerospace Center DLR Berlin, Berlin, Germany, (11)Aix Marseille University, Marseille Cedex 03, France, (12)German Aerospace Centre (DLR), Berlin, Germany, (13)German Aerospace Center, DLR, Cologne, Greece, (14)IAS Institut d'Astrophysique Spatiale, Orsay Cedex, France, (15)JAXA, Institute of Space and Astronautical Science, Sagamihara, Japan, (16)JAXA, Sagamihara, Japan, (17)ISAS/JAXA, Sagamihara, Japan, (18)German Aerospace Center, DLR, Oberpfaffenhofen, Germany, (19)German Aerospace Center, DLR, Bremen, Germany, (20)UNS-CNRS-Observatoire de la Cote d'Azur, Laboratoire Lagrange, NIce, France, (21)CNRS, Paris Cedex 16, France, (22)Center for Planetary Science, Kobe University, Kobe, Japan, (23)Chiba Institute of Technology, Chiba, Japan, (24)German Aerospace Center DLR Berlin, Department of Planetary Geodesy, Berlin, Germany, (25)DLR, Berlin, Germany, (26)JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan
 
Title: OSIRIS-REx at Asteroid (101955) Bennu: Selecting the Prime and Backup Sample Sites, Invited Paper 492627 (Invited) (492627)
Heather L Enos1, Dante S Lauretta1, Peter G Antreasian2, Arlin E. Bartels3, Beau Bierhaus4, Rich Burns3, Harold Connolly5, Beth Clark6, Sandra Freund7, Michael Moreau3, Ron Mink3, Scott Messenger8, Michael C Nolan1, Anjani Polit9 and Kevin John Walsh10, (1)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (2)KinetX Inc, Tempe, United States, (3)NASA Goddard Space Flight Center, Greenbelt, United States, (4)Lockheed Martin, Denver, CO, United States, (5)Rowan University, Glassboro, United States, (6)Ithaca College, Ithaca, NY, United States, (7)Lockheed Martin Corporation, Denver, United States, (8)NASA Johnson Space Center, Houston, United States, (9)University of Arizona, Tucson, United States, (10)Southwest Research Institute Boulder, Boulder, United States
 
Building a mission to an unknown body: Constraints on the composition and formation of (16) Psyche (Invited) (494195)
Linda T Elkins-Tanton1, James F Bell III2, Hannah Bercovici3, Bruce G Bills4, David J Lawrence5, Steven Dibb2, Simone Marchi6, Tim McCoy7, Rona Oran8, Ryan S Park9, Patrick N Peplowski10, Carol Ann Polanskey11, Thomas H Prettyman12, Christopher T Russell13, Laura Schaefer2, Benjamin P Weiss14, Daniel Wenkert9 and Mark Wieczorek Sr.15, (1)Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States, (2)Arizona State University, Tempe, AZ, United States, (3)Colgate University, Hamilton, NY, United States, (4)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (5)Johns Hopkins University, Baltimore, MD, United States, (6)NASA Lunar Science Institute, Boulder, CO, United States, (7)Smithsonian Institution, Washington, DC, United States, (8)Univ of Michigan--AOSS, Ann Arbor, MI, United States, (9)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (10)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (11)Jet Propulsion Laboratory, Pasadena, CA, United States, (12)Planetary Science Institute Albuquerque, Albuquerque, NM, United States, (13)University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States, (14)MIT, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (15)Observatoire de la Côte d'Azur - Laboratoire Lagrange, Nice, France
 
Artificial impact crater formed by Hayabusa2 small carry-on impactor on the surface of asteroid Ryugu (Invited) (494537)
Masahiko Arakawa1, Takanao Saiki2, Toshihiko Kadono3, Yasuhiko Takagi4, Koji Wada5, Yu-ichi Iijima2, Hiroshi Imamura2, Chisato Okamoto6, Yuri Shimaki2, Kei Shirai7, Satoru Nakazawa2, Masahiko Hayakawa8, Naru Hirata9, Hajime Yano10, Hirotaka Sawada8, Kazunori Ogawa11, Rie Honda12, Ko Ishibashi13, Naoya Sakatani8, Tomoaki Toda2, Hajime Hayakawa14, Seiji Sugita15, Tomokatsu Morota16, Shingo Kameda17, Eri Tatsumi18, Chikatoshi Honda19, Yasuhiro Yokota20, Toru Kouyama21, Manabu Yamada22, Hidehiko Suzuki23, Kazuo Yoshioka24, Yuichiro Cho15, Moe Matsuoka8 and Patrick Michel25, (1)Kobe Univ., Kobe, Japan, (2)JAXA, Sagamihara, Japan, (3)UOEH, Yahata, Kitakyusyu, Japan, (4)Aichi Toho Univ, Nagoya, Japan, (5)Chiba Institute of Technology, Planetary Exploration Research Center, Chiba, Japan, (6)Kobe University, Kobe, Japan, (7)JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, (8)ISAS/JAXA, Sagamihara, Japan, (9)The University of Aizu, Aizu-Wakamatsu, Japan, (10)JAXA, Institute of Space and Astronautical Science, Sagamihara, Japan, (11)Center for Planetary Science, Kobe University, Kobe, Japan, (12)Kochi University, Kochi, Japan, (13)Chiba Institute of Technology, Chiba, Japan, (14)Japan Aerospace Exploration Agency, Sagamihara, Japan, (15)University of Tokyo, Bunkyo-ku, Japan, (16)Nagoya University, Nagoya, Japan, (17)Rikkyo University, Tokyo, Japan, (18)University of Tokyo, Tokyo, Japan, (19)University of Aizu, Aizu-Wakamatsu, Japan, (20)JAXA/ISAS, Sagamihara, Japan, (21)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (22)Chiba Institute of Technology, Planetary Exploration Research Center, Narashino, Japan, (23)Meiji University, Kawasaki, Japan, (24)The University of Tokyo, Tokyo, Japan, (25)UNS-CNRS-Observatoire de la Cote d'Azur, Laboratoire Lagrange, NIce, France
 
DART: The Double Asteroid Redirection Test Mission (Invited) (494899)
Nancy L Chabot1, Andrew F Cheng1, Andrew Rivkin1, Elena Y Adams1, Edward Reynolds1 and The DART Team, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
 
Prospects for future analyses of the returned asteroid samples in light of the observation results obtained by Hayabusa2 and OSIRIS-REx missions (Invited) (532696)
Hikaru Yabuta, Hiroshima University, Higashi-Hiroshima, Japan, Shogo Tachibana, Univ. of Tokyo, Tokyo, Japan, Masanao Abe, JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, Makoto Yoshikawa, Japan Aerospace Exploration Agency, Kanagawa, Japan, Seiichiro Watanabe, Nagoya Univ., Nagoya, Japan, Yuichi Tsuda, JAXA, Sagamihara, Japan and Hayabusa2 Science Team
 
Lucy - First to the Trojans (Invited) (545093)
Harold F Levison1, Catherine Olkin1, Keith S. Noll2, Simone Marchi3 and Lucy Science Team, (1)Southwest Research Institute Boulder, Boulder, CO, United States, (2)NASA, Greenbelt, MD, United States, (3)NASA Lunar Science Institute, Boulder, CO, United States
 
The Evolution of Asteroid Ryugu Revealed by Hayabusa2 and Implications for Sample Analyses (Invited) (558234)
Seiji Sugita1, Tomokatsu Morota2, Rie Honda3, Shingo Kameda4, Eri Tatsumi5, Shogo Tachibana6, Kohei Kitazato7, Tatsuaki Okada8, Noriyuki Namiki9, Masahiko Arakawa10, Patrick Michel11, Deborah Lorin Domingue12, Satoshi Tanaka13, Makoto Yoshikawa14, Seiichiro Watanabe15, Yuichi Tsuda8 and Hayabusa2 Team, (1)University of Tokyo, Bunkyo-ku, Japan, (2)University of Tokyo, Tokyo, Japan, (3)Kochi University, Kochi, Japan, (4)Rikkyo University, Tokyo, Japan, (5)Instituto de Astrofísica de Canarias, Tenerife, Spain, (6)Hokkaido Univ., Sapporo, Japan, (7)The University of Aizu, Aizu-Wakamatsu, Japan, (8)JAXA, Sagamihara, Japan, (9)NAOJ National Astronomical Observatory of Japan, Tokyo, Japan, (10)Kobe Univ., Kobe, Japan, (11)UNS-CNRS-Observatoire de la Cote d'Azur, Laboratoire Lagrange, NIce, France, (12)Planetary Science Institute Tucson, Tucson, AZ, United States, (13)Japan Aerospace Exploration Agency, Sagamihara, Japan, (14)Japan Aerospace Exploration Agency, Kanagawa, Japan, (15)Nagoya Univ., Nagoya, Japan
 
Comet Interceptor: An ESA Mission to an Ancient World (Invited) (611517)
Geraint H Jones, UCL Mullard Space Science Laboratory, Holmbury St. Mary, Dorking, Surrey, United Kingdom, Colin Snodgrass, University of Edinburgh, School of Physics & Astronomy, Edinburgh, United Kingdom and The Comet Interceptor Team
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