First results from the plasma composition spectrometer PROMICS-3 in the Interball project

I. Sandahl, S Barbash, H Borg, EY Budnik, EM Dubinin, U Eklund, H Johansson, H Koskinen, K Lundin, R Lundin, A Mostrom, R Pellinen, NF Pissarenko, TI Pulkkinen, P Toivanen, AV Zakharov

Research output: Contribution to journalArticleScientificpeer-review

Abstract

PROMICS-3 is a plasma experiment flown in the Russian project Interball. It performs three-dimensional (3D) measurements of ions in the energy range 4 eV - 70 keV with mass separation and of electrons in the energy range 12 eV - 35 keV. The Interball project consists of two main satellites, the Tail Probe and the Auroral Probe, each with one subsatellite. The Interball Tail Probe was launched on 3 August 1995, into a 65 degrees inclination orbit with apogee at about 30 R-E. Both main satellites carry identical PROMICS-3 instruments and thus direct comparisons of the particle distributions will be possible once the Auroral Probe is launched. Furthermore, PROMICS-3-Tail is the first instrument measuring the 3D ion distribution function in the magnetospheric boundary layers at high latitudes. In this paper we describe the PROMICS-3 instrument and show initial results from the Tail probe, measurements of the magnetosheath, plasma sheet, and ring current plasmas.

Original languageEnglish
Pages (from-to)542-552
Number of pages11
JournalAnnales Geophysicae
Volume15
Issue number5
DOIs
Publication statusPublished - May 1997
MoE publication typeA1 Journal article-refereed

Keywords

  • UPFLOWING IONOSPHERIC IONS
  • CUSP-CLEFT REGION
  • BOUNDARY-LAYER
  • EARTH MAGNETOTAIL
  • CURRENT SHEET
  • DISTANT TAIL
  • SUBSTORM
  • ISEE-3
  • FLOWS

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