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Magnetic fields in Venus nightside ionospheric holes - Collected Pioneer Venus Orbiter magnetometer observationsThe magnetic fields detected by the Pioneer Venus Orbiter (PVO) magnetometer within the electron density depletions called 'holes' in the nightside ionosphere are typically larger and more organized than the fields in the surrounding ionosphere. Moreover, they have substantial sunward/antisunward components which cause them to appear as near-radial fields near the antisolar point. The collection of observations presented here illustrate the variety of appearances of the fields in holes. Some new results which summarize their average properties, their dependence on solar wind conditions, and their lack of geographical control are aslo presented. These results are potentially pertinent to the interpretation of data from the PVO entry at the end of 1992 and from the impending Mars Obsever mission, which will probe the magnetic fields in the low-altitude wake of weakly magnetized Mars.
Document ID
19920065123
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Luhmann, J. G.
(NASA Headquarters Washington, DC United States)
Russell, D. S.
(California, University Los Angeles, United States)
Date Acquired
August 15, 2013
Publication Date
June 25, 1992
Publication Information
Publication: Journal of Geophysical Research
Volume: 97
Issue: E6 J
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
92A47747
Funding Number(s)
CONTRACT_GRANT: NAGW-1347
CONTRACT_GRANT: NAG2-501
Distribution Limits
Public
Copyright
Other

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