2008•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIERequires access
The Optical Telescope Element Simulator for the James Webb Space Telescope
Pamela S. Davila, Brent J. Bos, E. S. Cheng, Bill Chang, William L. Eichhorn, Bradley J. Frey, Mario S. Garza, Qian Gong, Bradford W. Greeley, Jeff Guzek, Claef Hakun, L. Hovmand, Jeff Kirk, David A. Kubalak, Douglas B. Leviton, Adrian F. Nagle, Rich Nyquist, Thai Pham, Frederick D. Robinson, Derek Sabatke, Joseph Sullivan, Paul Volmer, Rob VonHandorf, Richard N. Youngworth
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Abstract
The James Webb Space Telescope Observatory will consist of three flight elements: (1) the Optical Telescope Element (OTE), (2) the Integrated Science Instrument Module Element (ISIM), and (3) the Spacecraft Element. The ISIM element consists of a composite bench structure that uses kinematic mounts to interface to each of the optical benches of the three science instruments and the guider. The ISIM is also kinematically mounted to the telescope primary mirror structure. An enclosure surrounds the ISIM structure, isolates the ISIM region thermally from the other thermal regions of the Observatory, and serves as a radiator for the science instruments and guider. Cryogenic optical testing of the ISIM Structure and the Science Instruments will be conducted at Goddard Space Flight Center using an optical telescope simulator that is being developed by a team from Ball Aerospace and Goddard Space Flight Center, and other local contractors. This simulator will be used to verify the performance of the ISIM element before delivery to the Northup Grumman team for integration with the OTE. In this paper, we describe the O OTE Sim TE Simulator (OSIM) and provide a brief overview of the optical test program. ulator