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Ann. Geophys., 15, 553-561, 1997
www.ann-geophys.net/15/553/1997/
© European Geosciences Union 1997

Structure of the low-latitude magnetopause: MAGION-4 observations

Z. Nemecek¹, A. Fedorov², J. Safrankova¹, and G. Zastenker^2
1Faculty of Mathematics and Physics of Charles University, Prague, Czech Republic
²Space Research Institute, Academy of Sciences of Russia, Moscow, Russia

Abstract. The aims of this paper are (1) briefly to describe the plasma devices onboard the MAGION-4 satellite, launched on 3 August 1995, of the INTERBALL project, and (2) to discuss first observations made near the magnetopause region. During the presented boundary crossings the MAGION-4 observed quasi-periodic pulses of magnetosheath-like plasma in a region of low plasma density. This region is located just earthwards of the magnetopause and is populated by a plasma which, except for the density, has the same parameters as in the magnetosheath. Deeper in the magnetosphere, the encounter of a layer of hot electrons and high-energy ions was interpreted as low-latitude boundary layer.

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Citation: Nemecek, Z., Fedorov, A., Safrankova, J., and Zastenker, G.: Structure of the low-latitude magnetopause: MAGION-4 observations, Ann. Geophys., 15, 553-561, 1997.   Bibtex   EndNote   Reference Manager