Japan Geoscience Union Meeting 2014

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[U-06_28AM1] New Progress toward the Understanding of Small Solar System Bodies

Mon. Apr 28, 2014 9:00 AM - 10:45 AM 503 (5F)

Convener:*Masahiko Arakawa(Graduate School of Science, Kobe University), Taishi Nakamoto(Tokyo Institute of Technology), Sei-ichiro WATANABE(Division of Earth and Planetary Sciences, Graduate School of Science, Nagoya University), Masanao Abe(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), MASATERU ISHIGURO(Department of Physics and Astronomy, Seoul National University), Chair:Masahiko Arakawa(Graduate School of Science, Kobe University)

10:30 AM - 10:45 AM

[U06-P07_PG] Hayabusa 2/SCI: calibration impact experiments

3-min talk in an oral session

*Toshihiko KADONO1, Masahiko ARAKAWA2, Sayaka TSUJIDO2, Minami YASUI3, Sunao HASEGAWA4, Kosuke KUROSAWA5, Kei SHIRAI4, Masahiko HAYAKAWA4, Chisato OKAMOTO4, Takanao SAIKI4, Hiroshi IMAMURA4, Hajime YANO4, Satoru NAKAZAWA4, Kazunori OGAWA4, Yuichi IIJIMA4, Naru HIRATA6, Yasuhiko TAKAGI7, Koji WADA5 (1.University of Occupational and Environmental Health, 2.Graduate School of Science, Kobe University, 3.Organization of Advanced Science and Technology, Kobe University, 4.Japan Aerospace Exploration Agency, 5.Planetary Exploration Research Center, Chiba Institute of Technology, 6.Dep. of Computer Science and Engineering, Univ. of Aizu, 7.Aichi Toho University)

Keywords:Hayabusa 2, Small Carryon Impactor, Impact experiments

SCI (Small Carryon Impactor" boarded on "Hayabusa 2" is a hollow Cu sphere with a mass of 15 kg, a diameter of 15 cm, which will impact a surface of asteroid 1999JU3. To estimate the conditions of the surface of the asteroid, such as composition and structure, we should investigate the results of the impact experiments with similar projectiles and various targets. We carried out impact experiments with gypsum and basalt targets and small hollow projectiles accelerated by a two-state light-gas gun at ISAS/JAXA, and sand targets and real scale projectiles at Kamioka. We report a summary of the results of these experiments.