Hayabusa2: Scientific importance of samples returned from C-type near-Earth asteroid (162173) 1999 JU<sub>3</sub>
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- TACHIBANA S.
- Department of Natural History Sciences, Hokkaido University
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- ABE M.
- Japan Aerospace Exploration Agency
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- ARAKAWA M.
- Kobe University
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- FUJIMOTO M.
- Japan Aerospace Exploration Agency
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- IIJIMA Y.
- Japan Aerospace Exploration Agency
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- ISHIGURO M.
- Seoul National University
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- KITAZATO K.
- University of Aizu
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- KOBAYASHI N.
- Japan Aerospace Exploration Agency
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- NAMIKI N.
- National Astronomical Observatory of Japan
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- OKADA T.
- Japan Aerospace Exploration Agency
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- OKAZAKI R.
- Kyushu University
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- SAWADA H.
- Japan Aerospace Exploration Agency
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- SUGITA S.
- The University of Tokyo
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- TAKANO Y.
- Japan Agency for Marine-Earth Science and Technology
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- TANAKA S.
- Japan Aerospace Exploration Agency
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- WATANABE S.
- Nagoya University
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- YOSHIKAWA M.
- Japan Aerospace Exploration Agency
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- KUNINAKA H.
- Japan Aerospace Exploration Agency
Bibliographic Information
- Other Title
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- Hayabusa2 : Scientific importance of samples returned from C-type near-Earth asteroid (162173) 1999 JU₃
- Hayabusa2: Scientific importance of samples returned from near-Earth C-type asteroid 1999 JU3
- Hayabusa2: scientific importance of samples 1027 returned from C-type near-Earth asteroid (162173) 1999 JU3
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Description
Hayabusa2 is an asteroid exploration mission to return surface samples of a near-Earth C-type asteroid (162173) 1999 JU3. Because asteroids are the evolved remnants of planetesimals that were the building blocks of planets, detailed observation by a spacecraft and analysis of the returned samples will provide direct evidence regarding planet formation and the dynamic evolution of the solar system. Moreover, C-type asteroids are expected to preserve the most pristine materials in the solar system, a mixture of minerals, ice, and organic matter that interact with each other. Space missions are the only way to obtain such pristine materials with geologic context and without terrestrial contamination. Hayabusa2 will launch off in 2014, arrive at 1999 JU3 in mid-2018, and fully investigate and sample the asteroid at three different locations during its 18-month stay. The concept and design of the Hayabusa2 sampler are basically the same as that on-board Hayabusa, and impact sampling with a 5-g Ta bullet will be made at three locations of the asteroid. The sample container has three separate chambers inside to store samples obtained at different locations separately. The spacecraft will return to Earth with samples in December 2020. Returned samples will be investigated by state-of-the-art analytical techniques in 2020 to understand the evolutionary history of the solar system from 4.56 Gyr ago to the present by combining results from laboratory examinations of the returned samples with remote-sensing datasets and comparing all results of observations of meteorites, interplanetary dust particles, and future returned samples.
Journal
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- GEOCHEMICAL JOURNAL
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GEOCHEMICAL JOURNAL 48 (6), 571-587, 2014
GEOCHEMICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679531397888
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- NII Article ID
- 130004857879
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- NII Book ID
- AA00654975
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- ISSN
- 18805973
- 00167002
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- NDL BIB ID
- 025994770
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed