29 July 2016 James Webb Space Telescope optical telescope element/integrated science instrument module (OTIS) status
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Abstract
The James Webb Space Telescope Optical Telescope Element (OTE) and Integrated Science Instrument Module (ISIM) are integrated together to form the OTIS. Once integrated, the OTIS undergoes primary mirror center of curvature optical tests, electrical and operational tests, acoustics and vibration testing at the Goddard Space Flight Center before being shipped to the Johnson Space Center for cryogenic optical testing of the OTIS. In preparation for the cryogenic optical testing, the JWST project has built a Pathfinder telescope and has completed two Optical Ground System Equipment (OGSE) cryogenic optical tests with the Pathfinder. In this paper, we will summarize optical test results to date and status the final Pathfinder test and the OTIS integration and environmental test preparations.
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Lee Feinberg, Mark Voyon, Juli Lander, Ritva Keski-Kuha, Gary Matthews, "James Webb Space Telescope optical telescope element/integrated science instrument module (OTIS) status", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 990407 (29 July 2016); doi: 10.1117/12.2231453; https://doi.org/10.1117/12.2231453
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