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LDEF data correlation to existing NASA debris environment modelsThe Long Duration Exposure Facility (LDEF) was recovered in January 1990, following 5.75 years exposure of about 130 sq. m to low-Earth orbit. About 25 sq. m of this surface area was aluminum 6061 T-6 exposed in every direction. In addition, about 17 sq. m of Scheldahl G411500 silver-Teflon thermal control blankets were exposed in 9 of the 12 directions. Since the LDEF was gravity gradient stabilized and did not rotate, the directional dependence of the flux can be easily distinguished. During the disintegration of the LDEF, all impact features larger than 0.5 mm into aluminum were documented for diameters and locations. In addition, the diameters and locations of all impact features larger than 0.3 mm into Scheldahl G411500 thermal control blankets were also documented. This data, along with additional information collected from LDEF materials will be compared with current meteoroid and debris models. This comparison will provide a validation of the models and will identify discrepancies between the models and the data.
Document ID
19920014078
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Atkinson, Dale R.
(POD Associates, Inc. Albuquerque, NM, United States)
Allbrooks, Martha K.
(POD Associates, Inc. Albuquerque, NM, United States)
Watts, Alan J.
(POD Associates, Inc. Albuquerque, NM, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Publication Information
Publication: NASA. Langley Research Center, LDEF: 69 Months in Space. First Post-Retrieval Symposium, Part 1
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
92N23321
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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