著者

S. TACHIBANA M. ABE M. ARAKAWA M. FUJIMOTO Y. IIJIMA M. ISHIGURO K. KITAZATO N. KOBAYASHI N. NAMIKI T. OKADA R. OKAZAKI H. SAWADA S. SUGITA Y. TAKANO S. TANAKA S. WATANABE M. YOSHIKAWA H. KUNINAKA THE HAYABUSA2 PROJECT TEAM

出版者

GEOCHEMICAL SOCIETY OF JAPAN

雑誌

GEOCHEMICAL JOURNAL (ISSN:00167002)

巻号頁・発行日

vol.48, no.6, pp.571-587, 2014-11-20 (Released:2014-12-19)

参考文献数

99

被引用文献数

59 104

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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.

著者

Yuichi TSUDA Takanao SAIKI Fuyuto TERUI Satoru NAKAZAWA Makoto YOSHIKAWA Seiichiro WATANABE Hayabusa2 Project Team

出版者

THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

雑誌

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES (ISSN:05493811)

巻号頁・発行日

vol.63, no.4, pp.115-123, 2020 (Released:2020-07-04)

参考文献数

8

被引用文献数

2

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Hayabusa2 arrived at the asteroid Ryugu in June 2018, and as of April 2019, the mission succeeded in conducting two rovers landing, one lander landing, one spacecraft touchdown/sample collection and one kinetic impact operation. This paper describes the initial nine months of the asteroid proximity operation activity of the Hayabusa2 mission, and gives an overview of the achievements thus far. Some important engineering and scientific activities conducted synchronously with spacecraft operations in order to complete all planned operations in time against unexpectedly harsh environment of Ryugu are also described.

著者

吉川 真 はやぶさ2プロジェクトチーム YOSHIKAWA Makoto Hayabusa2 Project Team

出版者

武蔵野大学教育学部宇宙地球科学教育研究室

雑誌

宇宙教育研究 = Research on Space Education (ISSN:24358568)

巻号頁・発行日

no.1, pp.68-78, 2020-07-07