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Preliminary micrometeoroid and debris effects on LDEF thermal control surfacesThermal control surfaces on the Long Duration Exposure Facility (LDEF) were exposed to 5.75 years of low-Earth orbit environments. Since LDEF was gravity gradient stabilized and directionally stable, the effects of each of the environments can be distinguished via changes in material responses to hypervelocity impacts. The extent of these effects are being visually and microscopically characterized using thermal control surfaces archived at Johnson Space Center in order to determine the the relationship between environment exposure and resulting ring sizes, delamination areas, and penetration diameters. The characterization of these affected areas will provide spacecraft system designers with the information they require to determine degradation of thermal control systems during satellite lifetimes.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Allbrooks, Martha K.
(POD Associates, Inc., Albuquerque NM., United States)
Atkinson, Dale R.
(POD Associates, Inc., Albuquerque NM., United States)
See, Thomas H.
(Lockheed Engineering and Sciences Co. Houston, TX., United States)
Horz, Friedrich
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Publication Information
Publication: NASA, Langley Research Center, First LDEF Post-Retrieval Symposium Abstracts
Subject Category
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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