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Proceedings Paper

Bus vent design evolution for the Solar Dynamics Observatory
Author(s): Michael Woronowicz
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Paper Abstract

As a spacecraft undergoes ascent in a launch vehicle, its pressure environment transitions from one atmosphere to high vacuum in a matter of minutes. Venting of internal cavities is necessary to prevent the buildup of pressure differentials across cavity walls. Opposing the need to vent these volumes freely into space are thermal, optical, and electrostatic requirements for limiting or prohibiting the intrusion of unwanted energy into the same cavities. Bus vent design evolution is discussed for the Solar Dynamics Observatory. Design changes were influenced by a number of factors and concerns, such as contamination control, electrostatic discharge, changes in bus material, and driving fairing ascent pressure for a launch vehicle that was just entering service as this satellite project had gotten underway.

Paper Details

Date Published: 7 September 2010
PDF: 7 pages
Proc. SPIE 7794, Optical System Contamination: Effects, Measurements, and Control 2010, 77940Q (7 September 2010); doi: 10.1117/12.864484
Show Author Affiliations
Michael Woronowicz, Stinger Ghaffarian Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 7794:
Optical System Contamination: Effects, Measurements, and Control 2010
Sharon A. Straka; Nancy Carosso, Editor(s)

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