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TRL-6 for JWST wavefront sensing and control

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE2007Vol. 6687, pp. 668708–668708

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Lee D. Feinberg, Bruce H. Dean, David L. Aronstein, Charles W. Bowers, William L. Hayden, Richard G. Lyon, Ron Shiri, Jeffrey S. Smith, D. Scott Acton, Larkin Carey, Adam R. Contos, Erin M. Sabatke, John P. Schwenker, Duncan Shields, Tim Towell, Fang Shi, Luis Meza

Abstract

NASA's Technology Readiness Level (TRL)-6 is documented for the James Webb Space Telescope (JWST) Wavefront Sensing and Control (WFSC) subsystem. The WFSC subsystem is needed to align the Optical Telescope Element (OTE) after all deployments have occurred, and achieves that requirement through a robust commissioning sequence consisting of unique commissioning algorithms, all of which are part of the WFSC algorithm suite. This paper identifies the technology need, algorithm heritage, describes the finished TRL-6 design platform, and summarizes the TRL-6 test results and compliance. Additionally, the performance requirements needed to satisfy JWST science goals as well as the criterion that relate to the TRL-6 Testbed Telescope (TBT) performance requirements are discussed.

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