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Anomalously high potentials observed on ISEEData from two electric field experiments and from the plasma composition experiment on ISEE-1 are used to show that the spacecraft charged to close to -70 V in sunlight at 0700 UT on March 17, 1978. Data from the electron spectrometer experiment show that there was a potential barrier of -10 to -20 V about the spacecraft during this event. The potential barrier was effective in turning back emitted photoelectrons to the spacecraft. The stringent electrostatic cleanliness specifications imposed on ISEE make the presence of differential charging unlikely. Modeling of this event is required to determine if the barrier was produced by the presence of space charge.
Document ID
19850014192
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Whipple, E. C. (California Univ., San Diego La Jolla, CA, United States)
Krinsky, I. S. (California Univ., San Diego La Jolla, CA, United States)
Torbert, R. B. (California Univ., San Diego La Jolla, CA, United States)
Olsen, R. C. (Alabama Univ. Huntsville, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1985
Publication Information
Publication: NASA. Lewis Research Center Spacecraft Environ. Interactions Technol., 1983
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
85N22503
Funding Number(s)
CONTRACT_GRANT: NAG-320
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19850014159Collected WorksSpacecraft Environmental Interactions Technology, 1983
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