Local time asymmetry of Pc 4--5 pulsations and associated particle modulations at synchronous orbit

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA094iA06p06607· OSTI ID:5940059

Kokubun, S; Erickson, K N; Fritz, T A; McPherron, R L

Magnetic field and particle flux observations on board ATS 6 at synchronous altitude are used to examine the dawn-dusk asymmetry of characteristics of Pc 4--5 waves and associated particle flux modulation. Most waves at synchronous orbit having ground correlations are polarized in the azimuthal direction (A class) and are usually detected in the dawn sector. Waves with a radially oriented polarization ellipse (R-class) are almost never observed near the subsatellite point on the ground, except for the regular pulsations known as giant pulsation Pg, observed in the early morning. R class Pc 4 waves occur at all local times and have an occurrence peak in the afternoon.

• Research Organization: Geophysics Research Laboratory, University of Tokyo (JP); School of Physics and Astronomy, University of Minnesota Minneapolis; Los Alamos National Laboratory, Los Alamos, New Mexico; Institute of Geophysics and Planetary Physics, University of California, Los Angeles
• OSTI ID: 5940059
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 94:A6; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
ENERGY LEVELS
HYDROMAGNETIC WAVES
MAGNETIC FIELDS
PLASMA WAVES
POLARIZATION
PROTON DENSITY
PULSATIONS
SOLAR ACTIVITY
SOLAR WIND