Electric field measurement on the Akebono (EXOS-D) satellite

H. Hayakawa, T. Okada, M. Ejiri, A. Kadokura, Y. I. Kohno, K. Maezawa, S. Machida, A. Matsuoka, T. Mukai, M. Nakamura, A. Nishida, T. Obara, Y. Tanaka, F. S. Mozer, G. Haerendel, K. Tsuruda

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


Electric field detectors (EFD) on the EXOS-D (Akebono) satellite measure the vector electric field by both the standard double probe technique (EFD-P) and the newly developed ion beam technique (EFD-B). This paper describes the instrumentation and preliminary observed results obtained by the EFD-P such as the Langmuir characteristics of the probe in the plasmasphere and the convection electric field in the auroral ionosphere. An intense electric field has been observed between the region 1 and 2 current on the morning side. Close to the mid-day meridian, fluctuating electric fields that are likely to be related in terms of a cusp/cleft structure were observed. -from Authors

Original languageEnglish
Pages (from-to)371-384
Number of pages14
JournalJournal of Geomagnetism & Geoelectricity
Issue number4
Publication statusPublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)


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