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Proceedings Paper

Wavefront control for a segmented deployable space telescope
Author(s): David C. Redding; Scott A. Basinger; David Cohen; Andrew E. Lowman; Fang Shi; Pierre Y. Bely; Charles W. Bowers; Richard Burg; Laura A. Burns; Pamela S. Davila; Bruce H. Dean; Gary E. Mosier; Todd A. Norton; Peter Petrone; Brendon D. Perkins; Mark E. Wilson
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Paper Abstract

By segmenting and folding the primary mirror, quite large telescopes can be packed into the nose cone of a rocket. Deployed after launch, initial optical performance can be quite poor, due to deployment errors, thermal deformation, fabrication errors and other causes. We describe an automatic control system for capturing, aligning, phasing, and deforming the optics of such a telescope, going from initial cm-level wavefront errors to diffraction-limited observatory operations. This system was developed for the Next Generation Space Telescope and is being tested on the NGST Wavefront Control Testbed.

Paper Details

Date Published: 28 July 2000
PDF: 13 pages
Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); doi: 10.1117/12.393971
Show Author Affiliations
David C. Redding, Jet Propulsion Lab. (United States)
Scott A. Basinger, Jet Propulsion Lab. (United States)
David Cohen, Jet Propulsion Lab. (United States)
Andrew E. Lowman, Jet Propulsion Lab. (United States)
Fang Shi, Jet Propulsion Lab. (United States)
Pierre Y. Bely, Space Telescope Science Institute (United States)
Charles W. Bowers, NASA Goddard Space Flight Ctr. (United States)
Richard Burg, NASA Goddard Space Flight Ctr. (United States)
Laura A. Burns, NASA Goddard Space Flight Ctr. (United States)
Pamela S. Davila, NASA Goddard Space Flight Ctr. (United States)
Bruce H. Dean, NASA Goddard Space Flight Ctr. (United States)
Gary E. Mosier, NASA Goddard Space Flight Ctr. (United States)
Todd A. Norton, NASA Goddard Space Flight Ctr. (United States)
Peter Petrone, NASA Goddard Space Flight Ctr. (United States)
Brendon D. Perkins, NASA Goddard Space Flight Ctr. (United States)
Mark E. Wilson, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 4013:
UV, Optical, and IR Space Telescopes and Instruments
James B. Breckinridge; Peter Jakobsen, Editor(s)

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