An Overview of Energetic Particle Measurements in the Jovian Magnetosphere with the EPAC Sensor on Ulysses
E. Keppler 1,
J. B. Blake 2,
M. Fränz 1,
A. Korth 1,
N. Krupp 1,
J. J. Quenby 3,
M. Witte 1, and
J. Woch 4
1 Max-Planck-Institut für Aeronomie, D-3411 Katlenburg-Lindau, Germany
2 Aerospace Corporation, Space Science Laboratory, Los Angeles, CA 90009
3 Imperial College of Science and Technology, Blackett Laboratory, London, United Kingdom
4 Swedish Institute of Space Physics, Kiruna, Sweden
Observations of ions and electrons of probable Jovian origin upstream of Jupiter were observed after a corotating interplanetary particle event. During the passage of Ulysses through the Jovian bow shock, magnetopause, and outer magnetosphere, the fluxes of energetic particles were surprisingly low. During the passage through the "middle magnetosphere," corotating fluxes were observed within the current sheet near the jovimagnetic equato. During the outbound pass, fluxes were variably directed; in the later part of the flyby, they were probably related to high-latitude phenomena.
Submitted on May 27, 1992
Accepted on July 31, 1992
