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Improvements of radio occultations of lunar and planetary atmospheres

Research Project

Project/Area Number 20740289
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Space and upper atmospheric physics
Research InstitutionJapan Aerospace Exploration Agency

Principal Investigator

IMAMURA Takeshi  Japan Aerospace Exploration Agency, 宇宙科学研究本部, 准教授 (40311170)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords地球惑星電離圏 / 惑星大気 / 月 / 電波掩蔽 / 電離層
Research Abstract

月探査「かぐや」での電波掩蔽による月電離層の観測のために、電波経路上にある地球電離層の影響を補正する方法について研究を進めた。「かぐや」の2機の子衛星を用いて、一方が月で掩蔽されているときにもう一方を地球電離層モニター用として、2機それぞれと地上局との間の電波伝搬によって計測される積分電子密度の差をとって月電離層の寄与を取り出した。また、子衛星のうち1機だけを用いた観測は400回近くもあり、これを統計処理することで地球電離層の影響を打ち消すことも試みた。

Report

(3 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • Research Products

    (12 results)

All 2010 2009 2008

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (6 results)

  • [Journal Article] Studying the Lunar Ionosphere with SELENE Radio Science Experiment2010

    • Author(s)
      Imamura, et al.
    • Journal Title

      Space Science Reviews

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 月電離層の電波掩蔽観測2009

    • Author(s)
      今村剛, ほか
    • Journal Title

      測地学会誌 55

      Pages: 307-314

    • NAID

      10025592916

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 月電離層の電波掩蔽観測2009

    • Author(s)
      今村剛
    • Journal Title

      測地学会誌 55

      Pages: 307-314

    • NAID

      10025592916

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Wavenumber spectra of planetary-scale disturbances in the Mars atmosphere2009

    • Author(s)
      Imamura, T., and H.Kobayashi
    • Journal Title

      Icarus 199

      Pages: 286-294

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Possibility of studying the lunar ionosphere with SELENE radio science experiment2008

    • Author(s)
      T. Imamura, et al.
    • Journal Title

      Earth, Planets and Space 60

      Pages: 387-390

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Possibility of studying the lunar ionosphere with SELENE radio science experiment2008

    • Author(s)
      Imamura, T., K.-I.Oyama, T.Iwata, Y.Kono, K.Matsumoto, Q.Liu, H.Noda, Y.Futaana, A.Nabatov
    • Journal Title

      Earth, Planets and Space 60

      Pages: 387-390

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Observing the Lunar Ionosphere with SELENE Radio Science2010

    • Author(s)
      T.Imamura
    • Organizer
      Asia Oceania Geosciences Society, 6th Annual General meeting
    • Place of Presentation
      Suntec, Singapore
    • Year and Date
      2010-08-12
    • Related Report
      2009 Annual Research Report
  • [Presentation] Initial results of the lunar ionosphere observation with SELENE Radio Science,2010

    • Author(s)
      K.-I.Oyama, T.Imamura, T.Iwata, Z.Yamamoto, A.Navatov, Y.Kono, K.Matsumoto, Q.Liu, H.Noda, H.Hanada, Y.Futaana, A.Saito
    • Organizer
      38th COSPAR Scientific Assembly
    • Place of Presentation
      Bremen, Germany
    • Related Report
      2008 Annual Research Report
  • [Presentation] かぐや電波科学による月電離層の研究2009

    • Author(s)
      今村剛, ほか
    • Organizer
      地球電磁気・地球惑星圏学会第126回総会・講演会
    • Place of Presentation
      金沢大学角間キャンパス自然科学本館
    • Year and Date
      2009-09-28
    • Related Report
      2009 Final Research Report
  • [Presentation] Observing the Lunar Ionosphere with SELENE Radio Science, Asia Oceania Geosciences Society2009

    • Author(s)
      T. Imamura, et al.
    • Organizer
      6th Annual General meeting
    • Place of Presentation
      Suntec, Singapore
    • Year and Date
      2009-08-12
    • Related Report
      2009 Final Research Report
  • [Presentation] Studying the Lunar Ionosphere with SELENE Radio Science Experiment2009

    • Author(s)
      Imamura, et al.
    • Organizer
      27th International Symposium on Space Technology and Science
    • Place of Presentation
      Epochal Tsukuba, Tsukuba
    • Year and Date
      2009-07-10
    • Related Report
      2009 Final Research Report
  • [Presentation] Initial re sults of the lunar ionosphere observation with SELENE Radio Science2008

    • Author(s)
      K.I. Oyama, T. Imamura, et al.
    • Organizer
      38th COSPAR Scientific Assembly
    • Place of Presentation
      Bremen, Germany
    • Related Report
      2009 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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