Use of living technical budgets to manage risk on the James Webb Space Telescope optical element

Daniel A. Porpora; Allison A. Barto; Paul A. Lightsey; J. Scott Knight

doi:10.1117/12.2228620

29 July 2016 Use of living technical budgets to manage risk on the James Webb Space Telescope optical element

Daniel A. Porpora, Allison A. Barto, Paul A. Lightsey, J. Scott Knight

Proceedings Volume 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave; 99043Y (2016) https://doi.org/10.1117/12.2228620
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The James Webb Space Telescope (JWST) Primary Mirror (PM) and Secondary Mirror (SM) are deployable relative to the rest of the optics. The PM consists of 18 assemblies which are aligned on-orbit using hexapod actuators. The complexity introduces risk that misalignments of individual components could result in a system with an unexpected optical train. In order to monitor risk throughout the life of the project, a series of interrelated technical budgets and independent cross-checks have been created and are continually updated with as-built data to provide confidence in the state of the system as well as the path to completion.

Citation Download Citation

Daniel A. Porpora, Allison A. Barto, Paul A. Lightsey, and J. Scott Knight "Use of living technical budgets to manage risk on the James Webb Space Telescope optical element", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99043Y (29 July 2016); https://doi.org/10.1117/12.2228620

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