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Proceedings Paper

Silicon carbide pointing mirror and telescope for the Geostationary Imaging Fourier Transform Spectrometer (GIFTS)
Author(s): Mark Schwalm; Dan Dibiase; Dave Landry; Brian Rider; Virginia Ugolini
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Paper Abstract

SSG Precision Optronics, Inc. has delivered a silicon carbide (SiC) pointing mirror and telescope for NASA's Geostationary Imaging Fourier Transform Spectrometer (GIFTS) project. The 28 x 45 cm SiC pointing mirror is part of SSG's two-axis gimbaled mirror assembly that will provide object-space pointing and jitter control. The 24 cm aperture telescope is an off-axis afocal three mirror anastigmat that is the collection aperture for the GIFTS instrument. Silicon carbide was selected for the GIFTS pointing mirror and telescope in order to minimize weight, provide athermal optical performance from room temperature to 190 Kelvin, and maintain image quality and line-of-sight stability in the presence of partial or full solar loading (minimizing solar outages). Both subsystems were successfully designed, fabricated, and subjected to testing prior to being delivered to Utah State University's Space Dynamics Laboratory for integration. This paper describes the pointing mirror and telescope design and hardware results.

Paper Details

Date Published: 19 August 2005
PDF: 8 pages
Proc. SPIE 5868, Optical Materials and Structures Technologies II, 586803 (19 August 2005); doi: 10.1117/12.615406
Show Author Affiliations
Mark Schwalm, SSG Precision Optronics, Inc. (United States)
Dan Dibiase, SSG Precision Optronics, Inc. (United States)
Dave Landry, SSG Precision Optronics, Inc. (United States)
Brian Rider, SSG Precision Optronics, Inc. (United States)
Virginia Ugolini, SSG Precision Optronics, Inc. (United States)


Published in SPIE Proceedings Vol. 5868:
Optical Materials and Structures Technologies II
William A. Goodman, Editor(s)

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