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Proceedings Paper

The 8-year report on MSX thermal blanket outgassing: an inexhaustible reservoir
Author(s): Mark T. Boies; B. David Green; Gary E. Galica; O. Manuel Uy; Richard C. Benson; David M. Silver; Bobby E. Wood; Jeffrey C. Lesho; David F. Hall; James S. Dyer
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Paper Abstract

The Midcourse Space Experiment (MSX) spacecraft has now been in orbit for over 8 years. The Total Pressure Sensor (TPS) has continually made measurements of the ambient and spacecraft induced environment since launch on April 24, 1996. The environment surrounding the satellite continues to be very dynamic. The magnitude of the solar induced pressure peaks has not decayed with time as would be expected. Even sole consideration of measured pressure versus duration of solar illumination does not illustrate long term decay. The TPS has continued to measure pressure variations of more than 2 orders of magnitude as the sun illuminates the blankets surrounding the instrument. The multi-layer thermal blankets appear to represent a large virtual source of water. The measured pressure is highly dependent upon the solar angle and the shadowing of surfaces by other structures. We will focus our attention on the results from an identical set of experiments conducted each year in July.

Paper Details

Date Published: 15 October 2004
PDF: 12 pages
Proc. SPIE 5526, Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control, (15 October 2004); doi: 10.1117/12.559968
Show Author Affiliations
Mark T. Boies, Research Support Instruments, Inc. (United States)
B. David Green, Physical Sciences Inc. (United States)
Gary E. Galica, Physical Sciences Inc. (United States)
O. Manuel Uy, Johns Hopkins Univ. (United States)
Richard C. Benson, Johns Hopkins Univ. (United States)
David M. Silver, Johns Hopkins Univ. (United States)
Bobby E. Wood, Bob Wood Aerospace Consulting Services, Inc. (United States)
Jeffrey C. Lesho, Johns Hopkins Univ. (United States)
David F. Hall, The Aerospace Corp. (United States)
James S. Dyer, Utah State Univ. (United States)


Published in SPIE Proceedings Vol. 5526:
Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control
John C. Fleming; Philip T. C. Chen; Michael G. Dittman, Editor(s)

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