22 August 2017 Alignment and testing of critical interface fixtures for the James Webb Space Telescope
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Abstract
NASA’s James Webb Space Telescope (JWST) is a 6.5m diameter, segmented, deployable telescope for cryogenic IR space astronomy. The JWST Observatory architecture includes the Primary Mirror Backplane Support Structure (PMBSS) and Integrated Science Instrument Module (ISIM) Electronics Compartment (IEC) which is designed to integrate to the spacecraft bus via six cup/cone interfaces. Prior to integration to the spacecraft bus, the JWST observatory must undergo environmental testing, handling, and transportation. Multiple fixtures were developed to support these tasks including the vibration fixture and handling and integration fixture (HIF). This work reports on the development of the nominal alignment of the six interfaces and metrology operations performed for the JWST observatory to safely integrate them for successful environmental testing.
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Kyle McLean, Paul Bagdanove, Joshua Berrier, Emmanuel Cofie, Tiffany Glassman, Theodore Hadjimichael, Eric Johnson, Joshua Levi, Amy Lo, Joseph McMann, Raymond Ohl, Dean Osgood, James Parker, Kevin Redman, Vicki Roberts, Matthew Stephens, Adam Sutton, Greg Wenzel, Jerrod Young, "Alignment and testing of critical interface fixtures for the James Webb Space Telescope ", Proc. SPIE 10377, Optical System Alignment, Tolerancing, and Verification XI, 103770H (22 August 2017); doi: 10.1117/12.2272790; https://doi.org/10.1117/12.2272790
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