JWST pathfinder telescope integration

Gary W. Matthews; Scott H. Kennard; Ronald T. Broccolo; James M. Ellis; Elizabeth A. Daly; Walter G. Hahn; John N. Amon; Stephen M. Mt. Pleasant; Scott Texter; Charles B. Atkinson; Andrew McKay; Joshua Levi; Ritva Keski-Kuha; Lee Feinberg

doi:10.1117/12.2188780

27 August 2015 JWST pathfinder telescope integration

Gary W. Matthews, Scott H. Kennard, Ronald T. Broccolo, James M. Ellis, Elizabeth A. Daly, Walter G. Hahn, John N. Amon, Stephen M. Mt. Pleasant, Scott Texter, Charles B. Atkinson, Andrew McKay, Joshua Levi, Ritva Keski-Kuha, Lee Feinberg

Author Affiliations +

Proceedings Volume 9575, Optical Manufacturing and Testing XI; 957504 (2015) https://doi.org/10.1117/12.2188780
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

The James Webb Space Telescope (JWST) is a 6.5m, segmented, IR telescope that will explore the first light of the universe after the big bang. In 2014, a major risk reduction effort related to the Alignment, Integration, and Test (AI and T) of the segmented telescope was completed. The Pathfinder telescope includes two Primary Mirror Segment Assemblies (PMSA’s) and the Secondary Mirror Assembly (SMA) onto a flight-like composite telescope backplane. This pathfinder allowed the JWST team to assess the alignment process and to better understand the various error sources that need to be accommodated in the flight build. The successful completion of the Pathfinder Telescope provides a final integration roadmap for the flight operations that will start in August 2015.

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Gary W. Matthews, Scott H. Kennard, Ronald T. Broccolo, James M. Ellis, Elizabeth A. Daly, Walter G. Hahn, John N. Amon, Stephen M. Mt. Pleasant, Scott Texter, Charles B. Atkinson, Andrew McKay, Joshua Levi, Ritva Keski-Kuha, and Lee Feinberg "JWST pathfinder telescope integration", Proc. SPIE 9575, Optical Manufacturing and Testing XI, 957504 (27 August 2015); https://doi.org/10.1117/12.2188780

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