Pole and global shape of 25143 Itokawa

被引：84

作者：

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

机构：

[1] Univ Aizu, Dept Comp Software, Aizu Wakamatsu, Fukushima 9658580, Japan

[2] CosmoLogic, Midori Ku, Yokohama, Kanagawa 2260016, Japan

[3] NEC Aerosp Syst, Tokyo 1838551, Japan

[4] NEC TOSHIBA Space Syst, Tokyo 1838551, Japan

[5] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan

[6] Natl Astron Observ Japan, Mizusawa, Oshu 0230861, Japan

[7] Univ Tokyo, Dept Geosyst Engn, Tokyo 1138656, Japan

[8] Planetary Sci Inst, Tucson, AZ 85719 USA

[9] Kobe Univ, Grad Sch Sci & Technol, Kobe, Hyogo 6578501, Japan

来源：

SCIENCE | 2006年 / 312卷 / 5778期

关键词：

D O I：

10.1126/science.1126574

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The locations of the pole and rotation axis of asteroid 25143 Itokawa were derived from Asteroid Multiband Imaging Camera data on the Hayabusa spacecraft. The retrograde pole orientation had a right ascension of 90.53 degrees and a declination of - 66.30 degrees ( 52000 equinox) or equivalently 128.5 degrees and - 89.66 degrees in ecliptic coordinates with a 3.9 degrees margin of error. The surface area is 0.393 square kilometers, the volume is 0.018378 cubic kilometers with a 5% margin of error, and the three axis lengths are 535 meters by 298 meters by 244 meters. The global Itokawa revealed a boomerang-shaped appearance composed of two distinct parts with partly faceted regions and a constricted ring structure.

引用

页码：1347 / 1349

页数：3

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