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Proceedings Paper

Charging And Contamination During Geosynchronous Orbit Insertion
Author(s): H. B. Liemohn; D. L. Tingey; G. G. Stevens; D. W. Mahaffey; M. C. Wilkinson
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Paper Abstract

Spacecraft operating at geosynchronous altitude are subject to sporadic bursts of energetic electrons that can charge vehicle surfaces to multi-kilovolt potentials. Electric fields emanating from these surfaces attract ions and charged particulates from vehicle outgassing and propellant exhausts, which substantially enhance the collection of contaminants. Solar arrays, second-surface mirrors, thermal control paints, and other dielectric surfaces are especially vulnerable because their charge dissipation requires solar photoemission. This study is particularly concerned with sensor contamination from rocket exhaust during geosynchronous orbit insertion. The Inertial Upper Stage and its payloads have been analyzed with three dimensional finite-element models to obtain electrostatic field configurations and with lumped-constant electric circuits for dynamic charging and arcing response. Results indicate these natural charging events seriously contaminate payloads if they occur during orbit insertion maneuvers. Preventive actions are suggested to alleviate the charging and avoid such contamination.

Paper Details

Date Published: 5 August 1980
PDF: 7 pages
Proc. SPIE 0216, Optics in Adverse Environments II, (5 August 1980); doi: 10.1117/12.958449
Show Author Affiliations
H. B. Liemohn, Boeing Aerospace Company (United States)
D. L. Tingey, Boeing Aerospace Company (United States)
G. G. Stevens, Boeing Aerospace Company (United States)
D. W. Mahaffey, Boeing Aerospace Company (United States)
M. C. Wilkinson, Boeing Aerospace Company, (United States)

Published in SPIE Proceedings Vol. 0216:
Optics in Adverse Environments II
Mark A. Kahan, Editor(s)

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