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Electron content near the lunar surface using dual-frequency VLBI tracking data in a single lunar orbiter mission
Wang Zhen1; Wang Na1; Ping Jinsong2
2015
Source PublicationResearch in Astronomy and Astrophysics
ISSN1674-4527
Volume15Issue:5Pages:753
AbstractIn VLBI observations of Vstar, a subsatellite of the Japanese lunar mission SELENE, there were opportunities for lunar grazing occultation when Vstar was very close to the limb of the Moon. This kind of chance made it possible to probe the thin plasma layer above the Moon's surface as a meaningful by-product of VLBI, by using the radio occultation method with coherent radio waves from the S/X bands. The dual-frequency measurements were carried out at Earth-based VLBI stations. In the line-of-sight direction between the satellite and the ground-based tracking station where VLBI measurements were made, the effects of the terrestrial ionosphere, interplanetary plasma and the thin lunar ionosphere mixed together in the combined observables of dual-frequency Doppler shift and phase shift. To separate the variation of the ionospheric total electron content (TEC) near the surface of the Moon from the mixed signal, the influences of the terrestrial ionosphere and interplanetary plasma have been removed by using an extrapolation method based on a short-term trend. The lunar TEC is estimated from the dual-frequency observation for Vstar from UT 22: 18 to UT 22: 20 on 2008 June 28 at several tracking stations. The TEC results obtained from VLBI sites are identical, however, they are not as remarkable as the result obtained at the Usuda deep space tracking station.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/39002
Collection中国科学院国家天文台
Affiliation1.中国科学院新疆天文台
2.中国科学院国家天文台
Recommended Citation
GB/T 7714
Wang Zhen,Wang Na,Ping Jinsong. Electron content near the lunar surface using dual-frequency VLBI tracking data in a single lunar orbiter mission[J]. Research in Astronomy and Astrophysics,2015,15(5):753.
APA Wang Zhen,Wang Na,&Ping Jinsong.(2015).Electron content near the lunar surface using dual-frequency VLBI tracking data in a single lunar orbiter mission.Research in Astronomy and Astrophysics,15(5),753.
MLA Wang Zhen,et al."Electron content near the lunar surface using dual-frequency VLBI tracking data in a single lunar orbiter mission".Research in Astronomy and Astrophysics 15.5(2015):753.
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