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Orbit Design for Twin-spacecraft Space VLBI

ZHANG Cheng WU Xia ZHENG Jianhua WU Ji

ZHANG Cheng, WU Xia, ZHENG Jianhua, WU Ji. Orbit Design for Twin-spacecraft Space VLBI[J]. 空间科学学报, 2015, 35(4): 502-510. doi: 10.11728/cjss2014.04.502
引用本文: ZHANG Cheng, WU Xia, ZHENG Jianhua, WU Ji. Orbit Design for Twin-spacecraft Space VLBI[J]. 空间科学学报, 2015, 35(4): 502-510. doi: 10.11728/cjss2014.04.502
ZHANG Cheng, WU Xia, ZHENG Jianhua, WU Ji. Orbit Design for Twin-spacecraft Space VLBI[J]. Chinese Journal of Space Science, 2015, 35(4): 502-510. doi: 10.11728/cjss2014.04.502
Citation: ZHANG Cheng, WU Xia, ZHENG Jianhua, WU Ji. Orbit Design for Twin-spacecraft Space VLBI[J]. Chinese Journal of Space Science, 2015, 35(4): 502-510. doi: 10.11728/cjss2014.04.502

Orbit Design for Twin-spacecraft Space VLBI

doi: 10.11728/cjss2014.04.502
基金项目: Supported by the Natural Science Foundation of China (40701100, 40801136) and the Strategic Priority Program on Space Science of the Chinese Academy of Sciences (XDA04060803)
详细信息
  • 中图分类号: V52

Orbit Design for Twin-spacecraft Space VLBI

Funds: Supported by the Natural Science Foundation of China (40701100, 40801136) and the Strategic Priority Program on Space Science of the Chinese Academy of Sciences (XDA04060803)
  • 摘要: Space Very Long Baseline Interferometry (S-VLBI) is an aperture synthesis technique utilizing an array of radio telescopes including ground telescopes and space orbiting telescopes. It can achieve much higher spatial resolution than that from the ground-only VLBI. In this paper, a new concept of twin spacecraft S-VLBI has been proposed, which utilizes the space-space baselines formed by two satellites to obtain larger and uniform uv coverage without atmospheric influence and hence achieve high quality images with higher angular resolution. The orbit selections of the two satellites are investigated. The imaging performance and actual launch conditions are all taken into account in orbit designing of the twin spacecraft S-VLBI. Three schemes of orbit design using traditional elliptical orbits and circular orbits are presented. These design results can be used for different scientific goals. Furthermore, these designing ideas can provide useful references for the future Chinese millimeter-wave S-VLBI mission.

     

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出版历程
  • 收稿日期:  2014-06-02
  • 修回日期:  2015-02-03
  • 刊出日期:  2015-07-15

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