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Proceedings Paper

Backup secondary mirror and mechanism for SOFIA
Author(s): Edwin F. Erickson; Michael A. Honaker; Chad A. Brivkalns; Theodore M. Brown; Nans Kunz; Werner Preuss; Michael R. Haas
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Paper Abstract

The SOFIA telescope has a silicon carbide secondary mirror and a six degree-of-freedom secondary mirror mechanism. Each of these high-technology items represents a single-point failure mode, because both are essential for operation of the observatory, and neither has a spare. Reduced-performance, relatively inexpensive “backup” hardware can enable a large fraction of the planned SOFIA science observations, and so can help to assure a highly reliable flight program. Accordingly, we have developed an aluminum secondary mirror and derived design requirements for a backup secondary mirror mechanism that will meet minimum performance needs.

Paper Details

Date Published: 28 September 2004
PDF: 9 pages
Proc. SPIE 5489, Ground-based Telescopes, (28 September 2004); doi: 10.1117/12.555478
Show Author Affiliations
Edwin F. Erickson, NASA Ames Research Ctr. (United States)
Michael A. Honaker, Orbital Sciences Corp. (United States)
Chad A. Brivkalns, NASA Ames Research Ctr. (United States)
Theodore M. Brown, Universities Space Research Association (United States)
Nans Kunz, NASA Ames Research Ctr. (United States)
Werner Preuss, Univ. Bremen (Germany)
Michael R. Haas, NASA Ames Research Ctr. (United States)

Published in SPIE Proceedings Vol. 5489:
Ground-based Telescopes
Jacobus M. Oschmann Jr., Editor(s)

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