Simultaneous observation of the plasma sheet in the near earth and distant magnetotail: ISEE-1 and ISEE-3

Journal Article · Mon Oct 01 04:00:00 EDT 1984 · Geophys. Res. Lett.; (United States)

DOI:https://doi.org/10.1029/GL011i010p01034· OSTI ID:5987996

Scholer, M; Hovestadt, D; Klecker, B; Baumjohann, W; Gloeckler, G; Ipavich, F M; Baker, D N; Zwicki, R D; Tsurutani, B T

We present particle data from the spacecraft 1981-025 and 1982-019 at geosynchronous orbit (6.6 R/sub E/) from ISEE-1 in the near-earth geomagnetic tail and from ISEE-3 in the distant geomagnetic tail at approx.130 R/sub E/ obtained during the first half of March 22, 1983. The spacecraft observations are supplemented by ground-based magnetograms from near local-midnight stations. Two substorm particle injections were detected at approx.0715 and 0.806 UT at geosynchronous orbit. At the same time suprathermal plasma sheet protons are observed at ISEE-1. Multiple entries and exits into and out of the plasma sheet are recorded at ISEE-3 in the distant tail. A substorm recovery is indicated by a poleward leap of the substorm electrojet at 0900 UT. After 0900 UT ISEE-1 and ISEE-3 entered the plasma sheet simultaneously within a few minutes. At the boundary of the recovery plasma sheet strong earthward streaming (ISEE-1) and tailward streaming (ISEE-3) suprathermal protons are observed, indicating that the two spacecraft were on opposite sides of the particle source. This represents the first measurement of ion beams at the plasma sheet boundary occurring simultaneously in the near-earth region and in the deep tail flowing in opposite directions.

• Research Organization: Max-Planck-Institut f. Physik u. Astrophysik, Inst. f. extraterr. Physik, 8046 Garching, FRG
• OSTI ID: 5987996
• Journal Information: Geophys. Res. Lett.; (United States), Journal Name: Geophys. Res. Lett.; (United States) Vol. 11:10; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

640203* -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR DISTRIBUTION
DISTRIBUTION
EARTH ATMOSPHERE
ELECTRON DENSITY
EXPLORER SATELLITES
MAGNETIC BAYS
MAGNETOSPHERE
MAGNETOTAIL
PLASMA SHEET
PROTON DENSITY
PROTON TEMPERATURE
SATELLITES