Knowledge Management System of Purple Mountain Observatory，CAS
| The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2 | |
Huang, Jiangchuan1,3; Ji, Jianghui2 ; Ye, Peijian1; Wang, Xiaolei4; Yan, Jun5; Meng, Linzhi3; Wang, Su2; Li, Chunlai5; Li, Yuan6; Qiao, Dong7; Zhao, Wei8; Zhao, Yuhui2; Zhang, Tingxin1; Liu, Peng8; Jiang, Yun2; Rao, Wei3; Li, Sheng9; Huang, Changning10; Ip, Wing-Huen6,11; Hu, Shoucun2; Zhu, Menghua6; Yu, Liangliang2; Zou, Yongliao5; Tang, Xianglong8; Li, Jianyang12; Zhao, Haibin2; Huang, Hao3; Jiang, Xiaojun5; Bai, Jinming13
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| 2013-12-12 | |
| Source Publication | SCIENTIFIC REPORTS
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| Volume | 3 |
| Abstract | On 13 December 2012, Chang'e-2 conducted a successful flyby of the near-Earth asteroid 4179 Toutatis at a closest distance of 770 +/- 120 meters from the asteroid's surface. The highest-resolution image, with a resolution of better than 3 meters, reveals new discoveries on the asteroid, e. g., a giant basin at the big end, a sharply perpendicular silhouette near the neck region, and direct evidence of boulders and regolith, which suggests that Toutatis may bear a rubble-pile structure. Toutatis' maximum physical length and width are (4.75 x 1.95 km) +/- 10%, respectively, and the direction of the +z axis is estimated to be (250 +/- 5 degrees, 63 +/- 5 degrees) with respect to the J2000 ecliptic coordinate system. The bifurcated configuration is indicative of a contact binary origin for Toutatis, which is composed of two lobes (head and body). Chang'e-2 observations have significantly improved our understanding of the characteristics, formation, and evolution of asteroids in general. |
| WOS Headings | Science & Technology |
| DOI | 10.1038/srep03411 |
| WOS Keyword | RADAR OBSERVATIONS ; BINARY ASTEROIDS ; PHYSICAL MODEL ; CONTACT BINARY ; SPIN STATES ; 21 LUTETIA ; INERTIA ; IMAGES ; EROS |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| WOS ID | WOS:000328503100001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://libir.pmo.ac.cn/handle/332002/15513 |
| Collection | 行星科学与深空探测实验室 |
| Affiliation | 1.China Acad Space Technol, Beijing 100094, Peoples R China 2.Chinese Acad Sci, Key Lab Planetary Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 3.Inst Space Syst Engn, Beijing 100094, Peoples R China 4.Beijing Inst Control Engn, Beijing 100190, Peoples R China 5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 6.Macau Univ Sci & Technol, Space Sci Inst, Taipa, Macau, Peoples R China 7.Beijing Inst Technol, Beijing 100081, Peoples R China 8.Harbin Inst Technol, Harbin 150001, Peoples R China 9.Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China 10.Beijing Inst Space Mech & Elect, Beijing 100076, Peoples R China 11.Natl Cent Univ, Inst Astron, Tao Yuan, Taiwan 12.Planetary Sci Inst, Tucson, AZ 85719 USA 13.Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Peoples R China |
| Recommended Citation GB/T 7714 | Huang, Jiangchuan,Ji, Jianghui,Ye, Peijian,et al. The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2[J]. SCIENTIFIC REPORTS,2013,3. |
| APA | Huang, Jiangchuan.,Ji, Jianghui.,Ye, Peijian.,Wang, Xiaolei.,Yan, Jun.,...&Bai, Jinming.(2013).The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2.SCIENTIFIC REPORTS,3. |
| MLA | Huang, Jiangchuan,et al."The Ginger-shaped Asteroid 4179 Toutatis: New Observations from a Successful Flyby of Chang'e-2".SCIENTIFIC REPORTS 3(2013). |
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