KMS National Astronomical Observatories, CAS
| The Mars Orbiter Subsurface Investigation Radar (MOSIR) on China's Tianwen-1 Mission | |
Fan, Mingyi1; Lyu, Peng1; Su, Yan2,3 ; Du, Kui1; Zhang, Qichun1; Zhang, Zhen1; Dai, Shun2; Hong, Tiansheng2
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| 2021-01-06 | |
| Source Publication | SPACE SCIENCE REVIEWS
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| ISSN | 0038-6308 |
| Volume | 217Issue:1Pages:17 |
| Abstract | China launched Tianwen-1 spacecraft successfully on July 23rd, 2020. The Mars Orbiter Subsurface Investigation Radar (MOSIR) is a subsurface radar sounder as a scientific instrument onboard Tianwen-1 orbiter. It is designed to study the compositions of Martian surface material, subsurface structure, and the ionosphere's total electron content. It can also perform passive observations in a transfer orbit to Mars. The subsurface stratigraphic structure is critical to the study on Mars geological and climatic evolution history. Considering the optimal tradeoff between penetrating depth and range resolution, MOSIR operates at low-frequency and high-frequency channels, with the frequency bands of 10-15 MHz or 15-20 MHz and 30-50 MHz, respectively. MOSIR provides a penetration depth of more than 100 m with a vertical resolution of 7.5 m (20 MHz bandwidth) and 30 m (5 MHz bandwidth) in free space. The range and azimuth focusing techniques are applied in ground data processing to achieve the resolution of several hundred meters (along-track) and several thousand meters (cross-track). MOSIR is intended to search for water ice and liquid water that may be associated with signs of life in the polar layered deposits, Tianwen-1 landing site, and other selected areas. |
| Keyword | Radar sounder Subsurface structure Mars Orbiter Subsurface Investigation Radar (MOSIR) Tianwen-1 spacecraft Stratigraphic structure |
| Funding Organization | China National Space Administration ; China National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| DOI | 10.1007/s11214-020-00786-4 |
| Language | 英语 |
| Funding Project | China National Space Administration ; National Natural Science Foundation of China[12073048] |
| Funding Organization | China National Space Administration ; China National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000608023100001 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.bao.ac.cn/handle/114a11/79807 |
| Collection | 中国科学院国家天文台 |
| Corresponding Author | Lyu, Peng; Su, Yan |
| Affiliation | 1.China Elect Technol Grp Corp, Res Inst 38, Hefei 230088, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Lunar & Deep Space Explorat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Fan, Mingyi,Lyu, Peng,Su, Yan,et al. The Mars Orbiter Subsurface Investigation Radar (MOSIR) on China's Tianwen-1 Mission[J]. SPACE SCIENCE REVIEWS,2021,217(1):17. |
| APA | Fan, Mingyi.,Lyu, Peng.,Su, Yan.,Du, Kui.,Zhang, Qichun.,...&Hong, Tiansheng.(2021).The Mars Orbiter Subsurface Investigation Radar (MOSIR) on China's Tianwen-1 Mission.SPACE SCIENCE REVIEWS,217(1),17. |
| MLA | Fan, Mingyi,et al."The Mars Orbiter Subsurface Investigation Radar (MOSIR) on China's Tianwen-1 Mission".SPACE SCIENCE REVIEWS 217.1(2021):17. |
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