Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985georl..12..191s&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 12, April 1985, p. 191-194. Sponsorship: Bundesministerium für Forschung und
Physics
16
Energetic Particles, Geomagnetic Tail, Remote Sensing, Satellite-Borne Instruments, High Energy Electrons, International Sun Earth Explorer 3, Magnetometers, Proton Energy
Scientific paper
During the recent ISEE-3 Geotail Mission three events have been identified from the magnetometer data which are consistent with a spacecraft crossing of a magnetotail flux rope. Energetic electron and proton observations obtained by the Max-Planck-Institut/University of Maryland sensor system during two of the possible flux rope events are presented. During one event remote sensing of the flux rope with energetic protons reveals that the flux rope is crossed by the spacecraft from south to north. This allows determination of the bandedness of the magnetic field twist and of the flux rope velocity relative to the spacecraft. A minimal flux rope radius of 3 earth radii is derived. Energetic proton intensity is highest just inside of the flux rope and decreases towards the core. Energetic electrons are streaming tailward near the outer boundary, indicating openness of the field lines, and are isotropic through the inner part of the flux rope.
Galvin Antoinette B.
Gloeckler George
Hovestadt Dieter
Ipavich Fred M.
Klecker Berndt
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