A thermal vacuum test fixture was defigned, built, tested and operated to position and protect a digital photogrammetry camera in a thermal vacuum chamber. The purpose of the work was to determine the mechanical deformations of the MAP (Microwave Anisotropy Probe) spacecraft as it was cooled from ambient temperature (293 degree Kelvin) to approximately 20 degree Kelvin. This paper describes the reasoning and methodology that were used to create the machine.
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