NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Simultaneous observations of a theta aurora and associated magnetotail plasmasObservations of a transpolar arc and simultaneous measurements of associated plasmas in the magnetotail lobe on March 25, 1982, are presented. The auroral imager on board Dynamics Explorer 1 observes a theta aurora in the northern polar cap for more than two hours, between 0502 and 0720 UT. ISEE 1 is located in the southern lobe of the geomagnetic tail at a distance of 22.2 R(E) during this time. The plasma and particle detectors measure intermittent bursts of particle fluxes between 0530 and 0705 UT. The observations suggest that these particle fluxes represent the high-altitude signature of a theta aurora in the southern polar cap. The relatively dense and energetic plasmas are organized into several filamentary structures. Magnetic mapping between the two polar regions indicates that the theta aurora in the Southern Hemisphere is a mirror reflection about the noon-midnight meridional plane of the theta aurora in the Northern Hemisphere.
Document ID
19890059902
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Huang, C. Y.
(Iowa Univ. Iowa City, IA, United States)
Craven, J. D.
(Iowa Univ. Iowa City, IA, United States)
Frank, L. A.
(Iowa, University Iowa City, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
Geophysics
Report/Patent Number
AD-A213768
Accession Number
89A47273
Funding Number(s)
CONTRACT_GRANT: N00014-85-K-0404
CONTRACT_GRANT: NGL-16-001-002
CONTRACT_GRANT: NAG5-483
CONTRACT_GRANT: NAS5-1109
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available