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Proceedings Paper

Use of living technical budgets to manage risk on the James Webb Space Telescope optical element
Author(s): Daniel A. Porpora; Allison A. Barto; Paul A. Lightsey; J. Scott Knight
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Paper 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.

Paper Details

Date Published: 29 July 2016
PDF: 8 pages
Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99043Y (29 July 2016); doi: 10.1117/12.2228620
Show Author Affiliations
Daniel A. Porpora, Ball Aerospace & Technologies Corp. (United States)
Allison A. Barto, Ball Aerospace & Technologies Corp. (United States)
Paul A. Lightsey, Ball Aerospace & Technologies Corp. (United States)
J. Scott Knight, Ball Aerospace & Technologies Corp. (United States)


Published in SPIE Proceedings Vol. 9904:
Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
Howard A. MacEwen; Giovanni G. Fazio; Makenzie Lystrup; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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