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Observations of the conjugate SAR arcs of September 28-30, 1967Stable subauroral red arcs (SAR arcs) were observed in both the northern and southern hemispheres on Sept. 28 to 30, 1967. For each pass the universal time and the longitude of the spacecraft as it crossed the magnetic equator are given. The SAR arc was noted to be worldwide in its extent and located on the same L shell in the northern and southern hemispheres. It appeared near L equals 3, moved equatorward to L equals 2.4, and later moved to, or reformed, near L equals 2.9. Its intensities were variable over the nearly two days of observations and, apparently influenced by the composition of the lower thermosphere, averaged 60 per cent greater in the northern hemisphere.
Document ID
19740051292
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Reed, E. I.
(NASA Goddard Space Flight Center Laboratory for Planetary Atmospheres, Greenbelt, Md., United States)
Blamont, J. E.
(CNRS, Service d'Aeronomie, Verrieres-le-Buisson Essonne, France)
Date Acquired
August 7, 2013
Publication Date
June 1, 1974
Publication Information
Publication: Journal of Geophysical Research
Volume: 79
Subject Category
Geophysics
Report/Patent Number
NSSDC-ID-67-073A-12-PM
Accession Number
74A34042
Distribution Limits
Public
Copyright
Other

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