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Proceedings Paper

Optomechanical modeling of the optical telescope element and integrated science instrument module (OTIS) cryo-vacuum test for the James Webb Space Telescope (JWST)
Author(s): Ryan Irvin; Scott O. Rohrbach; Lenward Seals; Dennis L. Skelton
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Paper Abstract

This paper describes the construction and application of an integrated optomechanical raytrace model used for optical analysis support of the OTIS cryo-vacuum test of the James Webb Space Telescope (JWST) test campaign. OTIS is the Optical Telescope Element (OTE) and Integrated Science Instrument Module (ISIM). Four specific applications are described – 1) simulation of ambient over-lighting conditions from clean room luminaires and photogrammetry flashes, 2) PSF image motion predictions in the presence of auto-collimating flat (ACF) actuation, 3) science instrument field illumination (“shadowgrams”) checking for unexpected vignetting, and 4) pupil alignment simulations of the Near Infrared Imager and Slitless Spectrograph (NIRISS).

Paper Details

Date Published: 6 July 2018
PDF: 16 pages
Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 1069806 (6 July 2018); doi: 10.1117/12.2314487
Show Author Affiliations
Ryan Irvin, Photon Engineering LLC (United States)
Scott O. Rohrbach, NASA Goddard Space Flight Ctr. (United States)
Lenward Seals, NASA Goddard Space Flight Ctr. (United States)
Dennis L. Skelton, Sigma Space Corp. (United States)


Published in SPIE Proceedings Vol. 10698:
Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave
Makenzie Lystrup; Howard A. MacEwen; Giovanni G. Fazio; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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