Features of polar cusp electron precipitation associated with a large magnetic storm
Technical Report
·
OSTI ID:4149475
Measurements of precipitating electrons made by the OGO-4 satellite reveal several interesting phenomena in the polar cusp. Extremely high fluxes of 0.7 keV electrons were observed in the polar cusp ninety minutes following the sudden commencement of a very large magnetic storm. Structured, fairly high fluxes of 7.3 keV electrons were also observed in the cusp region, accompanied by very strong search coil magnetometer fluctuations, indicative of strong field- aligned currents. The observations confirm previously reported latitudinal shifts in the location of the polar cusp in response to southward interplanetary magnetic fields. (auth)
- Research Organization:
- National Aeronautics and Space Administration, Greenbelt, Md. (USA). Goddard Space Flight Center
- NSA Number:
- NSA-33-008254
- OSTI ID:
- 4149475
- Report Number(s):
- N--75-12873; NASA-TM-X--70792; X--626-74-326
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
*MAGNETIC BAYS-- ELECTRON PRECIPITATION
*POLAR REGIONS-- ELECTRON PRECIPITATION
640203* --Physics Research--Atmospheric Physics-- Magnetospheric Phenomena
EV RANGE 100-1000
GEOMAGNETIC FIELD
INTERPLANETARY MAGNETIC FIELDS
KEV RANGE 01-10
N56700 --Physics (Astrophysics & Cosmology)--Planetary Phenomena
N58300* --Physics (Atmospheric)--Magnetospheric Phenomena
OGO SATELLITES
VARIATIONS
*POLAR REGIONS-- ELECTRON PRECIPITATION
640203* --Physics Research--Atmospheric Physics-- Magnetospheric Phenomena
EV RANGE 100-1000
GEOMAGNETIC FIELD
INTERPLANETARY MAGNETIC FIELDS
KEV RANGE 01-10
N56700 --Physics (Astrophysics & Cosmology)--Planetary Phenomena
N58300* --Physics (Atmospheric)--Magnetospheric Phenomena
OGO SATELLITES
VARIATIONS