NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Estimated Environmental Exposures for MISSE-3 and MISSE-4Both modeling techniques and a variety of measurements and observations were used to characterize the environmental conditions experienced by the specimens flown on the MISSE-3 (Materials International Space Station Experiment) and MISSE-4 space flight experiments. On August 3, 2006, astronauts Jeff Williams and Thomas Reiter attached MISSE-3 and -4 to the Quest airlock on ISS, where these experiments were exposed to atomic oxygen (AO), ultraviolet (UV) radiation, particulate radiation, thermal cycling, meteoroid/space debris impact, and the induced environment of an active space station. They had been flown to ISS during the July 2006 STS-121 mission. The two suitcases were oriented so that one side faced the ram direction and one side remained shielded from the atomic oxygen. On August 18,2007, astronauts Clay Anderson and Dave Williams retrieved MISSE-3 and-4 and returned them to Earth at the end of the STS-118 mission. Quantitative values are provided when possible for selected environmental factors. A meteoroid/debris impact survey was performed prior to de-integration at Langley Research Center. AO fluences were calculated based on mass loss and thickness loss of thin polymeric films of known AO reactivity. Radiation was measured with thermoluminescent detectors. Visual inspections under ambient and "black-light" at NASA LaRC, together with optical measurements on selected specimens, were the basis for the initial contamination level assessment.
Document ID
20080033099
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Pippin, Gary
(Boeing Phantom Works Seattle, WA, United States)
Normand, Eugene
(Boeing Phantom Works Seattle, WA, United States)
Finckenor, Miria
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 24, 2013
Publication Date
June 23, 2008
Subject Category
Space Sciences (General)
Meeting Information
Meeting: National Space and Missile Materials Symposium
Location: Henderson, NV
Country: United States
Start Date: June 23, 2008
End Date: June 27, 2008
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available