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https://doi.org/10.1029/ja085ia03p01155
Copy DOIPublication Date: Mar 1, 1980 | |
Citations: 23 |
The ATS 6 satellite, during an orbital maneuver in September 1976, passed within a few hundred kilometers of the geosynchronous satellite 1976‐059A. Analysis of the 30‐ to 80‐keV electron data from the University of California at San Diego (UCSD) electrostatic analyzers on ATS 6 and the 30‐ to 300‐keV electron data from the Los Alamos Scientific Laboratory instrument on 1976‐059A during this period reveals good agreement between the two instruments even when the separation is ±7°. The low‐energy UCSD ion data from ATS 6 allow a simultaneous determination of the potential difference between ATS 6 and the ambient medium. Use of the 1976‐059 A electron data to approximate the ambient plasma electron density and temperature during these charging periods indicates sufficient information exists in order to estimate the maximum potentials to which ATS 6 charges in sunlight and eclipse. As data from 1976‐059A and similar satellites are potentially available in real time, the information therefore exists to create a satellite charging index for the geosynchronous regime that would be valid within at least ±7° longitude of the position of each measurement.
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