ATS-5 observations of plasma sheet particles before the expansion-phase onset, appendix C.
Abstract
Behavior of the plasma sheet around its earthward edge during substorms was studied by using high resolution (every 2.6 sec) measurements of proton and electron fluxes by ATS-5. In the injection region near midnight the flux increase at the expansion-phase onset is shown to lag behind the onset of the low-latitude positive bay by several minutes. Depending upon the case, before the above increase (1) the flux stays at a constant level, (2) it gradually increases for some tens of minutes, or (3) it briefly drops to a low level. Difference in the position of the satellite relative to the earthward edge and to the high-latitude boundary of the plasma sheet is suggested as a cause of the above difference in flux variations during the growth phase of substorms. Magnetograms and tables (data) are shown.
- Publication:
-
In its Analysis of Data from the Lockheed Experiment on ATS-5 25 p (SEE N76-15705 06-46
- Pub Date:
- September 1975
- Bibcode:
- 1975adle.rept.....F
- Keywords:
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- Ats 5;
- Auroras;
- Magnetic Storms;
- Plasma-Particle Interactions;
- Satellite Observation;
- Earth Magnetosphere;
- Electric Fields;
- Electron Flux Density;
- Ionospheric Storms;
- Proton Precipitation;
- Satellite Orientation;
- Geophysics