P22A:
A First Look at 162173 Ryugu and 101955 Bennu: Hayabusa 2 and OSIRIS-REx Arrive at Their Respective Target Asteroids II


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Session ID#: 60113

Session Description:
Both the Hayabusa 2 and OSIRIS-REx spacecrafts begin proximity operations in June 2018 and October 2018 respectively. This session presents first results from their target asteroids 162173 Ryugu and 101955 Bennu.  Shape models, spectral analyses and global imaging of theses reveal new discoveries into the origin and evolution of these two objects.
Primary Convener:  Olivier S Barnouin, The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Conveners:  Makoto Yoshikawa, Japan Aerospace Exploration Agency, Kanagawa, Japan and Seiji Sugita, University of Tokyo, Tokyo, Japan
Primary Liaison:  Olivier S Barnouin, The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Chairs:  Olivier S Barnouin, JHU Applied Physics Lab, Laurel, United States and Seiji Sugita, University of Tokyo, Tokyo, Japan
OSPA Liaison:  Olivier S Barnouin, JHU Applied Physics Lab, Laurel, United States
Index Terms:

6040 Origin and evolution [PLANETARY SCIENCES: COMETS AND SMALL BODIES]
6055 Surfaces [PLANETARY SCIENCES: COMETS AND SMALL BODIES]
6205 Asteroids [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
6207 Comparative planetology [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]

Abstracts Submitted to this Session:

Spectral Analysis for the OSIRIS-REx Mission at Bennu (374757)
Victoria E Hamilton1, Philip R Christensen2, Beth Clark3, Joshua P Emery4, Ellen S Howell5, Michael C Nolan6, Dante S Lauretta5, Dennis Reuter7, Amy A Simon7, Cristina Thomas8, Hannah Kaplan9 and the OSIRIS-REx Team, (1)Southwest Research Institute Boulder, Boulder, CO, United States, (2)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (3)Ithaca College, Ithaca, NY, United States, (4)Univ of Tennessee-EPS, Knoxville, TN, United States, (5)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (6)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (7)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (8)Northern Arizona University, Department of Astronomy and Planetary Science, Flagstaff, AZ, United States, (9)Southwest Research Institute, Boulder, United States
Hayabusa2/NIRS3 spectral observations of asteroid (162173) Ryugu (379365)
Rosario Brunetto1, Kohei Kitazato2, Takahiro Iwata3, Masanao Abe4, Makiko Ohtake3, Shuji Matsuura5, Takehiko Arai6, Yusuke Nakauchi6, Tomoki Nakamura7, Moe Matsuoka8, Hiroki Senshu9, Naru Hirata2, Takahiro Hiroi10, Cedric Pilorget1, Francois Poulet11, Lucie Riu6, Deborah L Domingue12, Driss Takir13, Ernesto Palomba14, Ralph Milliken15, Davide Perna16, M. Antonietta Barucci17, Jean-Pierre Bibring18 and Seiichiro Watanabe19, (1)IAS Institut d'Astrophysique Spatiale, Orsay Cedex, France, (2)The University of Aizu, Aizu-Wakamatsu, Japan, (3)Japan Aerospace Exploration Agency, Kanagawa, Japan, (4)Japan Aerospace Exploration Agency, Sagamihara, Japan, (5)Kwansei Gakuin University, Hyogo, Japan, (6)JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, (7)Tohoku University, Sendai, Japan, (8)AIST - National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (9)Chiba Institute of Technology, Narashino, Japan, (10)Brown University, Providence, RI, United States, (11)Institut d’Astrophysique Spatiale, CNRS/Paris-Sud University, Orsay Cedex, France, (12)Planetary Science Institute, Tucson, United States, (13)Jacobs Technology, NASA Johnson Space Center, Houston, United States, (14)IAPS-INAF, Rome, Italy, (15)Brown University, Providence, United States, (16)Moorhead, MN, United States, (17)Paris Observatory Meudon, Meudon, France, (18)CNRS, Paris Cedex 16, France, (19)Nagoya Univ., Nagoya, Japan
Comparison of Color Maps of Asteroids Ryugu and Bennu from the Approach Phase of Hayabusa2 and OSIRIS-REx missions (388904)
Lucille Le Corre1, Adriana Macieira Mitchell2, Olivier S Barnouin3, Kris Becker2, Carina Bennett2, Humberto Campins4, Yuichiro Cho5, Beth Clark6, Daniella N DellaGiustina7, Christian d'Aubigny2, Carolyn M Ernst8, Robert W Gaskell1, Dathon R Golish7, Masahiko Hayakawa9, Naoyuki Hirata10, Naru Hirata11, Chikatoshi Honda11, Rie Honda12, Shingo Kameda13, Toru Kouyama14, Dante S Lauretta7, Jian-Yang Li1, Moe Matsuoka15, Tomokatsu Morota16, Michael C Nolan2, Eric E Palmer1, Bashar Rizk2, Naoya Sakatani17, Hirotaka Sawada9, Peter H Smith2, Seiji Sugita5, Hidehiko Suzuki18, Eri Tatsumi5, Seiichiro Watanabe16, John R Weirich1, Manabu Yamada19, Yasuhiro Yokota9, Kazuo Yoshioka5 and The OSIRIS-REx Team, (1)Planetary Science Institute, Tucson, AZ, United States, (2)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (3)JHU Applied Physics Lab, Laurel, United States, (4)University of Central Florida, Orlando, FL, United States, (5)University of Tokyo, Bunkyo-ku, Japan, (6)Ithaca College, Ithaca, NY, United States, (7)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (8)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (9)ISAS/JAXA, Sagamihara, Japan, (10)Kobe University, Kobe, Japan, (11)University of Aizu, Aizu-Wakamatsu, Japan, (12)Kochi University, Kochi, Japan, (13)Rikkyo University, Tokyo, Japan, (14)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (15)AIST - National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (16)Nagoya University, Nagoya, Japan, (17)JAXA/ISAS, Sagamihara, Japan, (18)Meiji University, Kanagawa, Japan, (19)Chiba Institute of Technology, Planetary Exploration Research Center, Narashino, Japan
Visible Spectrophotometry of 162173 Ryugu (456433)
Eri Tatsumi1, Seiji Sugita2, Rie Honda3, Tomokatsu Morota4, Toru Kouyama5, Yasuhiro Yokota6, Deborah L Domingue7, Hidehiko Suzuki8, Shingo Kameda9, Manabu Yamada10, Naru Hirata11, Naoyuki Hirata12, Naoya Sakatani13, Kazuo Yoshioka14, Chikatoshi Honda15, Masahiko Hayakawa13, Moe Matsuoka16, Yuichiro Cho2, M. Antonietta Barucci17, Lucille Le Corre18, Sho Sasaki19, Takahiro Hiroi20, Masatoshi Hirabayashi21 and Hirotaka Sawada13, (1)University of Tokyo, Bunkyo-ku, Japan, (2)University of Tokyo, Tokyo, Japan, (3)Kochi University, Kochi, Japan, (4)Nagoya University, Nagoya, Japan, (5)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (6)JAXA/ISAS, Sagamihara, Japan, (7)Planetary Science Institute, Tucson, United States, (8)Meiji University, Kanagawa, Japan, (9)Rikkyo University, Tokyo, Japan, (10)Chiba Institute of Technology, Planetary Exploration Research Center, Narashino, Japan, (11)The University of Aizu, Aizu-Wakamatsu, Japan, (12)Kobe University, Kobe, Japan, (13)ISAS/JAXA, Sagamihara, Japan, (14)The University of Tokyo, Tokyo, Japan, (15)University of Aizu, Aizu-Wakamatsu, Japan, (16)AIST - National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (17)Paris Observatory Meudon, Meudon, France, (18)Planetary Science Institute, Tucson, AZ, United States, (19)Osaka University, Earth and Space Science, Toyonaka, Japan, (20)Brown University, Providence, RI, United States, (21)Georgia Institute of Technology, Daniel Guggenheim School of Aerospace Engineering, Atlanta, United States
Mass Determination of (101955) Bennu and Related OSIRIS-REx Gravity Science (368539)
Daniel Jay Scheeres1, Jay McMahon2, Daniel N Brack3, Andrew French3, Olivier S Barnouin4, Michael G Daly5, Robert W Gaskell6, Eric E Palmer7, John R Weirich7, Steven R Chesley8, Davide Farnocchia9, Yu Takahashi10, Kevin John Walsh11, Michael C Nolan12, Dante S Lauretta13 and OSIRIS-REx Team, (1)University of Colorado Boulder, Ann and H.J. Smead Department of Aerospace Engineering Sciences, Boulder, CO, United States, (2)University of Colorado at Boulder, Ann and H.J. Smead Department of Aerospace Engineering Sciences, Boulder, CO, United States, (3)University of Colorado at Boulder, Ann and H.J. Smead Department of Aerospace Engineering Sciences, Boulder, United States, (4)JHU Applied Physics Lab, Laurel, United States, (5)York University, Centre for Research in Earth and Space Science, Toronto, ON, Canada, (6)Planetary Science Institute Tucson, Tucson, AZ, United States, (7)Planetary Science Institute, Tucson, AZ, United States, (8)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (9)NASA Jet Propulsion Laboratory, Pasadena, United States, (10)Jet Propulsion Laboratory, Pasadena, United States, (11)University of Melbourne, Parkville, Australia, (12)Arecibo Observatory, Arecibo, PR, United States, (13)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States
Shape and geophysical properties of the asteroid Ryugu from initial observations by Hayabusa2 (431018)
Naru Hirata1, Naoyuki Hirata2, Sayuri Tanaka2, Naoki Nishikawa2, Takaaki Sugiyama1, Robert W Gaskell3, Eric E Palmer4, Rina Noguchi5, Yuri Shimaki6, Koji Matsumoto7, Hiroki Senshu8, Yukio Yamamoto9, Shin-ya Murakami10, Yoshiaki Ishihara11, Seiji Sugita12, Yuichi Tsuda11 and Seiichiro Watanabe13, (1)University of Aizu, Aizu-Wakamatsu, Japan, (2)Kobe University, Kobe, Japan, (3)Planetary Science Institute Tucson, Tucson, AZ, United States, (4)Planetary Science Institute, Tucson, AZ, United States, (5)ISAS/JAXA, Sagamihara, Japan, (6)JAXA, Sagamihara, Japan, (7)National Astronomical Obs, Oshu, Iwate, Japan, (8)Chiba Institute of Technology, Narashino, Japan, (9)ISAS Institute of Space and Astronautical Science, Kanagawa, Japan, (10)ISAS/JAXA, Sagamihara, Kanagawa, Japan, (11)Japan Aerospace Exploration Agency, Sagamihara, Japan, (12)University of Tokyo, Tokyo, Japan, (13)Nagoya Univ., Nagoya, Japan
Initial report of Hayabusa2 laser altimeter (LIDAR) (403806)
Hirotomo Noda1, Noriyuki Namiki1, Takahide Mizuno2, Hiroki Senshu3, Koji Matsumoto4, Yoshiaki Ishihara5, Ryuhei Yamada6, Hiroshi Araki1, Keiko Yamamoto1, Naru Hirata6, Shinsuke Abe7, Fumi Yoshida8, Arika Higuchi1, Hideaki Miyamoto9, Hitoshi Ikeda10, Fuyuto Terui10, Sho Sasaki11, Shoko Oshigami1, Seiitsu Tsuruta4, Kazuyoshi Asari4, Seiichi Tazawa1, Makoto Shizugami1, Hirohide Demura6 and Jun Kimura12, (1)NAOJ National Astronomical Observatory of Japan, Tokyo, Japan, (2)JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, (3)Chiba Institute of Technology, Narashino, Japan, (4)National Astronomical Obs, Oshu, Iwate, Japan, (5)Japan Aerospace Exploration Agency, Sagamihara, Japan, (6)The University of Aizu, Aizu-Wakamatsu, Japan, (7)Nihon University, Tokyo, Japan, (8)Chiba Institute of Technology, Chiba, Japan, (9)University of Tokyo, Bunkyo-ku, Japan, (10)JAXA, Sagamihara, Japan, (11)Osaka University, Earth and Space Science, Toyonaka, Japan, (12)Osaka University, Department of Earth and Space Science, Osaka, Japan
Concerning the Magnetic Properties of Asteroid (162173) Ryugu: Observations and Results From the Magnetometer Experiment Onboard the Mobile Asteroid Surface Scout (MASCOT) as Part of the Hayabusa 2 Mission (353517)
Karl-Heinz Glassmeier1, David Hercik1, Hans Ulrich Auster2, Jurgen Blum1, Masaki Fujimoto3, Carsten Güttler4, Andreas Hoerdt1, Ekkehard Kuhrt5, Uwe M Motschmann6, Ingo Richter2 and Benjamin P Weiss7, (1)Technische Universität Braunschweig, Braunschweig, Germany, (2)TU Braunschweig, Institute of Geophysics and Extraterrestrial Physics, Braunschweig, Germany, (3)JAXA, Sgamihara, Japan, (4)Max-Planck Institute for Solar System Research, Goettingen, Germany, (5)DLR, Berlin, Germany, (6)Technische Universität Braunschweig, Institute for Theoretical Physics, Braunschweig, Germany, (7)MIT, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States
Crater Population(s) on (101955) Bennu, a B-Class Asteroid and Target of the OSIRIS-REx Mission (396159)
Beau Bierhaus1, Olivier S Barnouin2, Kevin John Walsh3, Harold Connolly4, Michael G Daly5, Dante S Lauretta6, Michael C Nolan7, Daniella DellaGiustina6, Bashar Rizk7, Tim McCoy8, Erica Jawin9, Patrick Michel10, Maurizio Pajola11 and The OSIRIS-REx Team, (1)Lockheed Martin Space Systems, Cupertino, CA, United States, (2)JHU Applied Physics Lab, Laurel, United States, (3)Southwest Research Institute Boulder, Boulder, United States, (4)Rowan University, Glassboro, United States, (5)York University, Centre for Research in Earth and Space Science, Toronto, ON, Canada, (6)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (7)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (8)National Museum of Natural History, Smithsonian Institution, Mineral Sciences, Washington, United States, (9)Smithsonian Institute, Mineral Science, Washington, DC, United States, (10)UNS-CNRS-Observatoire de la Cote d'Azur, Laboratoire Lagrange, Nice, France, (11)INAF-OAPd, Padova, Italy
Distribution and morphology of craters on asteroid Ryugu (377432)
Yuichiro Cho1, Tomokatsu Morota2, Masanori Kanamaru3, Rie Honda4, Shingo Kameda5, Eri Tatsumi6, Yasuhiro Yokota7, Toru Kouyama8, Hidehiko Suzuki9, Manabu Yamada10, Naoya Sakatani7, Chikatoshi Honda11, Masahiko Hayakawa7, Kazuo Yoshioka12, Moe Matsuoka13, Tatsuhiro Michikami14, Hideaki Miyamoto1, Hiroshi Kikuchi6,12, Ryodo Hemmi12, Masatoshi Hirabayashi15, Carolyn M Ernst16, Olivier S Barnouin17, Katharina A. Otto18, Nicole Schmitz19, Roland J Wagner20, Ralf Jaumann21, Naoyuki Hirata22, Naru Hirata23, Hirotaka Sawada7 and Seiji Sugita6, (1)University of Tokyo, Bunkyo-ku, Japan, (2)Nagoya University, Nagoya, Japan, (3)Osaka University, Osaka, Japan, (4)Kochi University, Kochi, Japan, (5)Rikkyo University, Tokyo, Japan, (6)University of Tokyo, Tokyo, Japan, (7)ISAS/JAXA, Sagamihara, Japan, (8)National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (9)Meiji University, Kanagawa, Japan, (10)Chiba Institute of Technology, Planetary Exploration Research Center, Narashino, Japan, (11)University of Aizu, Aizu-Wakamatsu, Japan, (12)The University of Tokyo, Tokyo, Japan, (13)AIST - National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (14)Kinki University, Osaka, Japan, (15)Georgia Institute of Technology, Daniel Guggenheim School of Aerospace Engineering, Atlanta, United States, (16)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (17)JHU Applied Physics Lab, Laurel, United States, (18)German Aerospace Centre (DLR), Berlin, Germany, (19)German Aerospace Center DLR Berlin, Berlin, Germany, (20)German Aerospace Center (DLR), Berlin, Germany, (21)German Aerospace Ctr, Berlin, Germany, (22)Kobe University, Kobe, Japan, (23)The University of Aizu, Aizu-Wakamatsu, Japan
Initial Perspectives on Surface Geology of (101955) Bennu including Comparisons to (162173) Ryugu (374145)
Kevin John Walsh1, Olivier S Barnouin2, Beau Bierhaus3, Carina A. Bennett4, Keara N. Burke4, Beth Clark5, Harold C Connolly Jr6, Michael G Daly7, Daniella N DellaGiustina8, Victoria E Hamilton9, Erica Jawin10, Dante S Lauretta8, Tim McCoy11, Patrick Michel12, Michael C Nolan13, Joseph Andrew Nuth III14, Maurizio Pajola15, Bashar Rizk4, Naoya Sakatani16, Daniel Jay Scheeres17, Stephen R Schwartz4, Seiji Sugita18, Eri Tatsumi18, David Trang19, Koji Wada20 and The OSIRIS-REx Team, (1)Southwest Research Institute Boulder, Boulder, United States, (2)JHU Applied Physics Lab, Laurel, United States, (3)Lockheed Martin, Littleton, United States, (4)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (5)Ithaca College, Ithaca, NY, United States, (6)Rowan University, Department of Geology, School of Earth and Environment, Glassboro, NJ, United States, (7)York University, Centre for Research in Earth and Space Science, Toronto, ON, Canada, (8)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (9)Southwest Research Institute Boulder, Boulder, CO, United States, (10)Smithsonian Institute, Mineral Science, Washington, DC, United States, (11)National Museum of Natural History, Smithsonian Institution, Mineral Sciences, Washington, United States, (12)UNS-CNRS-Observatoire de la Cote d'Azur, Laboratoire Lagrange, Nice, France, (13)Arecibo Observatory, Arecibo, PR, United States, (14)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (15)INAF-OAPd, Padova, Italy, (16)ISAS/JAXA, Sagamihara, Japan, (17)University of Colorado Boulder, Ann and H.J. Smead Department of Aerospace Engineering Sciences, Boulder, CO, United States, (18)University of Tokyo, Tokyo, Japan, (19)University of Hawaiʻi at Mānoa, Honolulu, HI, United States, (20)Chiba Institute of Technology, Planetary Exploration Research Center, Chiba, Japan

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