Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-04T19:18:29.016Z Has data issue: false hasContentIssue false
  • English
  • Français

The nature of asteroid Itokawa revealed by Hayabusa

Published online by Cambridge University Press:  01 August 2006

M. Yoshikawa ,
A. Fujiwara  and
J. Kawaguchi
M. Yoshikawa
Affiliation:
JAXA, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, 229-8510, Japan, email: [email protected]
A. Fujiwara
Affiliation:
JAXA, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, 229-8510, Japan, email: [email protected]
J. Kawaguchi
Affiliation:
JAXA, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, 229-8510, Japan, email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The spacecraft Hayabusa, which was launched in 2003, arrived at its destination, asteroid (25143) Itokawa in September 2005. The appearance of Itokawa, a small S-type near Earth asteroids, was totally unexpected. The surface is covered with a lot of boulders and there are only a few craters on it. It looks like a contact binary asteroid. The surface composition is quite similar to LL-chondrite. The estimated density is 1.9 ± 0.13 (g/cm3), so the macro-porosity is about 40%. This means that Itokawa is a rubble pile object. In Itokawa, we may see such things that are very close to building blocks of asteroids. In this paper, we review the mission and the first scientific results.

Keywords

space missionsrendezvousasteroid surfaceasteroid landingsample returninstrumentationmass determination
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S236: Near Earth Objects, our Celestial Neighbors: Opportunity and Risk , August 2006 , pp. 401 - 416
Copyright
Copyright © International Astronomical Union 2007

References

Abe, M., Takagi, Y., Kitazato, K., Abe, S., Hiroi, T., Vilas, F., Clark, B. E., Abell, P. A., Lederer, S. M., Jarvis, K. S., Nimura, T., Ueda, Y., & Fujiwara, A. 2006, Science 312, 1334CrossRefGoogle Scholar
Abe, S., Mukai, T., Hirata, N., Barnouin-Jha, O. S., Cheng, A. F., Demura, H., Gaskell, R. W., Hashimoto, T., Hiraoka, K., Honda, T., Kubota, T., Matsuoka, M., Mizuno, T., Nakamura, R., Scheeres, D. J., & Yoshikawa, M. 2006, Science 312, 1344CrossRefGoogle Scholar
Demura, H., Kobayashi, S., Nemoto, E., Matsumoto, N., Furuya, M., Yukishita, A., Muranaka, N., Morita, H., Shirakawa, K., Maruya, M., Ohyama, H., Uo, M., Kubota, T., Hashimoto, T., Kawaguchi, J., Fujiwara, A., Saito, J., Sasaki, S., Miyamoto, H., & Hirata, N. 2006, Science 312, 1347CrossRefGoogle Scholar
Fujiwara, A., Kawaguchi, J., Yeomans, D. K., Abe, M., Mukai, T., Okada, T., Saito, J., Yano, H., Yoshikawa, M., Scheeres, D. J., Barnouin-Jha, O. S., Cheng, A. F., Demura, H., Gaskell, R. W., Hirata, N., Ikeda, H., Kominato, T., Miyamoto, H., Nakamura, A. M., Nakamura, R., Sasaki, S., & Uesugi, K. 2006, Science 312, 1330CrossRefGoogle Scholar
Okada, T., Shirai, K., Yamamoto, Y., Arai, T., Ogawa, K., Hosono, K., & Kato, M. 2006, Science 312, 1338CrossRefGoogle Scholar
Saito, J., Miyamoto, H., Nakamura, R., Ishiguro, M., Michikami, T., Nakamura, A. M., Demura, H., Sasaki, S., Hirata, N., Honda, C., Yamamoto, A., Yokota, Y., Fuse, T., Yoshida, F., Tholen, D. J., Gaskell, R. W., Hashimoto, T., Kubota, T., Higuchi, Y., Nakamura, T., Smith, P., Hiraoka, K., Honda, T., Kobayashi, S., Furuya, M., Matsumoto, N., Nemoto, E., Yukishita, A., Kitazato, K., Dermawan, B., Sogame, A., Terazono, J., Shinohara, C., & Akiyama, H. 2006, Science 312, 1341CrossRefGoogle Scholar
Yano, H., Kubota, T., Miyamoto, H., Okada, T., Scheeres, D. J., Takagi, Y., Yoshida, K., Abe, M., Abe, S., Barnouin-Jha, O. S., Fujiwara, A., Hasegawa, S., Hashimoto, T., Ishiguro, M., Kato, M., Kawaguchi, J., Mukai, T., Saito, J., Sasaki, S., & Yoshikawa, M. 2006, Science 312, 1350CrossRefGoogle Scholar