A simulation of Martian gravity field recovery by using a near equatorial orbiter
文献类型：期刊论文
| 作者 | Yan, Jianguo1,2; Li, Fei1 ; Ping, Jingsong3; Dohm, James M.4; Harada, Yuji3; Zhong, Zhen1
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| 刊名 | ADVANCES IN SPACE RESEARCH
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| 出版日期 | 2012-03-01 |
| 卷号 | 49期号:5页码:1019-1027 |
| 关键词 | Near equatorial orbit Martian gravity field Precise orbit determination Covariance Time variable gravity |
| 英文摘要 | An improvement to the Martian gravity field may be achieved by means of future orbiting spacecraft with small eccentricity and low altitude exemplified through a newly proposed mission design that may be tested in upcoming reconnaissance of Mars. Here, the near equatorial orbital character (with an inclination approximating 10 degrees, eccentricity as 0.01 and semi-major axis as 4000 km) is considered, and its contribution to Martian gravity field solution is analyzed by comparing it with a hypothetical polar circular orbiter. The solution models are evaluated in terms of the following viewpoints: power spectra of gravity field coefficients, correlations of low degree zonal coefficients, precise orbit determination, and error distribution of both Mars free air gravity anomaly and areoid. At the same time, the contributions of the near equatorial orbiters in low degree zonal coefficients time variations are also considered. The present results show that the near equatorial orbiter allows us to improve the accuracy of the Martian gravity field solution, decrease correlation of low degree zonal coefficients, retrieve much better time variable information of low degree zonal coefficients, improve precise orbit determination, and provide more accurate Mars free air gravity anomaly and areoid around the equatorial region. (C) 2011 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences |
| 研究领域[WOS] | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
| 关键词[WOS] | MARS ; PLANETS ; GEODESY ; MODELS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301610600018 |
| 源URL | [http://119.78.226.72/handle/331011/18086]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan 430070, Peoples R China 2.Natl Inst Nat Sci, Natl Astron Observ Japan, RISE Project, Oshu 0230861, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Ctr Astrogeodynam Res, Shanghai 200030, Peoples R China 4.Univ Arizona, Dept Hydrol & Water Resources, Tucson, AZ 85721 USA |
| 推荐引用方式 GB/T 7714 | Yan, Jianguo,Li, Fei,Ping, Jingsong,et al. A simulation of Martian gravity field recovery by using a near equatorial orbiter[J]. ADVANCES IN SPACE RESEARCH,2012,49(5):1019-1027. |
| APA | Yan, Jianguo,Li, Fei,Ping, Jingsong,Dohm, James M.,Harada, Yuji,&Zhong, Zhen.(2012).A simulation of Martian gravity field recovery by using a near equatorial orbiter.ADVANCES IN SPACE RESEARCH,49(5),1019-1027. |
| MLA | Yan, Jianguo,et al."A simulation of Martian gravity field recovery by using a near equatorial orbiter".ADVANCES IN SPACE RESEARCH 49.5(2012):1019-1027. |
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来源：上海天文台
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