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Journal of Astronomical Telescopes, Instruments, and Systems

Validation of the corrective optics on the Hubble Space Telescope 1st Servicing Mission
Author(s): Kevin P. Thompson; Robert Kestner; J. Michael Rodgers; Daniel J. Bajuk
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Paper Abstract

The Hubble Space Telescope 1st Servicing Mission carried with it a total of 14 corrective mirrors, four in wide field (WF) 2 and the planetary (PC) 2 (three WF and one PC), two each for the three axial SIs (FOS red and blue), faint object camera (f48 and f/96), and Goddard high resolution spectrograph, which were packaged in a single module, corrective optics space telescope axial replacement (COSTAR). This paper presents the fabrication and validation of these mirrors that were the cornerstone of strategy to recover the telescope performance. The COSTAR optics were particularly challenging and represented one of the earliest examples of anamorphic aspheric mirrors fabricated to <0.005 waves RMS of surface figure residual. Other firsts included one of the earliest applications of phase stepping interferometry, now an industry standard. Insights into the corrective designs, the mirror figure shapes, and the technology used in the validation of the mirrors are presented.

Paper Details

Date Published: 11 July 2016
PDF: 8 pages
J. Ast. Inst. Sys. 2(3) 034001 doi: 10.1117/1.JATIS.2.3.034001
Published in: Journal of Astronomical Telescopes, Instruments, and Systems Volume 2, Issue 3
Show Author Affiliations
Kevin P. Thompson, Synopsys, Inc. (United States)
Robert Kestner, Akumen Engineering, LLC (United States)
J. Michael Rodgers, Synopsys, Inc. (United States)
Daniel J. Bajuk, Akumen Engineering, LLC (United States)


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