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Proceedings Paper

Metrology for trending alignment of the James Webb Space Telescope before and after ambient environmental testing
Author(s): Theo Hadjimichael; Raymond G. Ohl; Josh Berrier; Jeff Gum; Joseph Hayden; Manal Khreishi; Kyle McLean; Kevin Redman; Joseph Sullivan; Greg Wenzel; William Eichhorn; Jerrod Young
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Paper Abstract

NASA’s James Webb Space Telescope (JWST) is a 6.6m diameter, segmented, deployable telescope for cryogenic IR space astronomy. The JWST Observatory architecture includes the Optical Telescope Element (OTE) and the Integrated Science Instrument Module (ISIM) element which contains four science instruments (SIs). Prior to integration with the spacecraft, the JWST optical assembly is put through rigorous launch condition environmental testing. This work reports on the metrology operations conducted to measure changes in subassembly alignment, including the primary mirror segments, the secondary mirror to its support structure, the tertiary mirror assembly to the backplane of the telescope and ISIM.

Paper Details

Date Published: 22 August 2017
PDF: 14 pages
Proc. SPIE 10377, Optical System Alignment, Tolerancing, and Verification XI, 103770I (22 August 2017); doi: 10.1117/12.2273991
Show Author Affiliations
Theo Hadjimichael, NASA Goddard Space Flight Ctr. (United States)
Raymond G. Ohl, NASA Goddard Space Flight Ctr. (United States)
Josh Berrier, Tech Solutions (United States)
Jeff Gum, NASA Goddard Space Flight Ctr. (United States)
Joseph Hayden, Sigma Space Corp. (United States)
Manal Khreishi, NASA Goddard Space Flight Ctr. (United States)
Kyle McLean, NASA Goddard Space Flight Ctr. (United States)
Kevin Redman, Sierra Lobo, Inc. (United States)
Joseph Sullivan, Ball Aerospace & Technologies Corp. (United States)
Greg Wenzel, Sierra Lobo, Inc. (United States)
William Eichhorn, Genesis Engineering Solutions, Inc. (United States)
Jerrod Young, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 10377:
Optical System Alignment, Tolerancing, and Verification XI
José Sasián; Richard N. Youngworth, Editor(s)

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