Results from commissioning the James Webb Space Telescope using an influence function matrix for mirror alignment

Garrett J. West; D. Scott Acton; J. Scott Knight

doi:10.1117/12.2631693

27 August 2022 Results from commissioning the James Webb Space Telescope using an influence function matrix for mirror alignment

Garrett J. West, D. Scott Acton, J. Scott Knight

Author Affiliations +

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 121803V (2022) https://doi.org/10.1117/12.2631693
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The 18 hexagonal mirrors and the Secondary Mirror of the James Webb Space Telescope (JWST) are precisely aligned in space after deployment using the Influence Function Matrix (IFM). The IFM is calculated from the optical model and predicts how each of the 132 alignment modes impact the telescope wavefront error. This paper will discuss the results from using the IFM in commissioning, including alignment convergence results and analysis comparing the IFM predictions to flight performance.

Citation Download Citation

Garrett J. West, D. Scott Acton, and J. Scott Knight "Results from commissioning the James Webb Space Telescope using an influence function matrix for mirror alignment", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121803V (27 August 2022); https://doi.org/10.1117/12.2631693

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