Dual-spacecraft radio occultation measurement of the electron density near the lunar surface by the SELENE mission

H. Ando, T. Imamura, A. Nabatov, Y. Futaana, T. Iwata, H. Hanada, K. Matsumoto, N. Mochizuki, Y. Kono, H. Noda, Q. Liu, Oyama Koichiro, Z. Yamamoto, A. Saito

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

During the SELENE (Kaguya) mission the dual-spacecraft radio occultation technique was used to investigate the electron population in the vicinity of the lunar surface. One pair of coherent S-band radio signals from one spacecraft was used to probe the possible electron density enhancement near the Moon, and another signal pair from the other spacecraft measured the solar wind and the terrestrial ionosphere plasma fluctuations, which also exist in the measurement by the former signal pair. The results suggest that any stable ionosphere with densities comparable to the ones observed by the Soviet Luna 19 and 22 missions does not exist near the terminator at high latitudes, although the occurrence of temporal or localized density enhancements cannot be ruled out.

Original languageEnglish
Article numberA08313
JournalJournal of Geophysical Research: Space Physics
Volume117
Issue number8
DOIs
Publication statusPublished - 2012 Jan 1

Fingerprint

radio occultation
lunar surface
radio
electron density
Carrier concentration
Spacecraft
spacecraft
Ionosphere
electrons
ionospheres
ionosphere
radio signals
Solar wind
S band
augmentation
Moon
moon
polar regions
solar wind
probe

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Ando, H. ; Imamura, T. ; Nabatov, A. ; Futaana, Y. ; Iwata, T. ; Hanada, H. ; Matsumoto, K. ; Mochizuki, N. ; Kono, Y. ; Noda, H. ; Liu, Q. ; Koichiro, Oyama ; Yamamoto, Z. ; Saito, A. / Dual-spacecraft radio occultation measurement of the electron density near the lunar surface by the SELENE mission. In: Journal of Geophysical Research: Space Physics. 2012 ; Vol. 117, No. 8.
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abstract = "During the SELENE (Kaguya) mission the dual-spacecraft radio occultation technique was used to investigate the electron population in the vicinity of the lunar surface. One pair of coherent S-band radio signals from one spacecraft was used to probe the possible electron density enhancement near the Moon, and another signal pair from the other spacecraft measured the solar wind and the terrestrial ionosphere plasma fluctuations, which also exist in the measurement by the former signal pair. The results suggest that any stable ionosphere with densities comparable to the ones observed by the Soviet Luna 19 and 22 missions does not exist near the terminator at high latitudes, although the occurrence of temporal or localized density enhancements cannot be ruled out.",
author = "H. Ando and T. Imamura and A. Nabatov and Y. Futaana and T. Iwata and H. Hanada and K. Matsumoto and N. Mochizuki and Y. Kono and H. Noda and Q. Liu and Oyama Koichiro and Z. Yamamoto and A. Saito",
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Ando, H, Imamura, T, Nabatov, A, Futaana, Y, Iwata, T, Hanada, H, Matsumoto, K, Mochizuki, N, Kono, Y, Noda, H, Liu, Q, Koichiro, O, Yamamoto, Z & Saito, A 2012, 'Dual-spacecraft radio occultation measurement of the electron density near the lunar surface by the SELENE mission', Journal of Geophysical Research: Space Physics, vol. 117, no. 8, A08313. https://doi.org/10.1029/2011JA017141

Dual-spacecraft radio occultation measurement of the electron density near the lunar surface by the SELENE mission. / Ando, H.; Imamura, T.; Nabatov, A.; Futaana, Y.; Iwata, T.; Hanada, H.; Matsumoto, K.; Mochizuki, N.; Kono, Y.; Noda, H.; Liu, Q.; Koichiro, Oyama; Yamamoto, Z.; Saito, A.

In: Journal of Geophysical Research: Space Physics, Vol. 117, No. 8, A08313, 01.01.2012.

Research output: Contribution to journalArticle

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T1 - Dual-spacecraft radio occultation measurement of the electron density near the lunar surface by the SELENE mission

AU - Ando, H.

AU - Imamura, T.

AU - Nabatov, A.

AU - Futaana, Y.

AU - Iwata, T.

AU - Hanada, H.

AU - Matsumoto, K.

AU - Mochizuki, N.

AU - Kono, Y.

AU - Noda, H.

AU - Liu, Q.

AU - Koichiro, Oyama

AU - Yamamoto, Z.

AU - Saito, A.

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AB - During the SELENE (Kaguya) mission the dual-spacecraft radio occultation technique was used to investigate the electron population in the vicinity of the lunar surface. One pair of coherent S-band radio signals from one spacecraft was used to probe the possible electron density enhancement near the Moon, and another signal pair from the other spacecraft measured the solar wind and the terrestrial ionosphere plasma fluctuations, which also exist in the measurement by the former signal pair. The results suggest that any stable ionosphere with densities comparable to the ones observed by the Soviet Luna 19 and 22 missions does not exist near the terminator at high latitudes, although the occurrence of temporal or localized density enhancements cannot be ruled out.

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