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Proceedings Paper

Optomechanical alignment of the Composite Infrared Spectrometer (CIRS) for the Cassini mission to Saturn
Author(s): John G. Hagopian; Patricia Ann Hayes; Julie A. Crooke; James J. Lyons
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Paper Abstract

The composite infrared spectrometer (CIRS) of the Cassini mission to Saturn has two interferometers covering the far infrared and mid infrared wavelength region. The instrument is aligned at ambient temperature, but operates at 170 Kelvin and has challenging boresight and interferometric alignment tolerances. This paper describes how the aluminium mirrors were aligned to the CIRS optics module to tolerances of .5 milliradians in biaxial tilt and 100 microns in decenter and how the instrument boresight was aligned.

Paper Details

Date Published: 14 October 1996
PDF: 13 pages
Proc. SPIE 2814, Cryogenic Optical Systems and Instruments VII, (14 October 1996); doi: 10.1117/12.254147
Show Author Affiliations
John G. Hagopian, NASA Goddard Space Flight Ctr. (United States)
Patricia Ann Hayes, NASA Goddard Space Flight Ctr. (United States)
Julie A. Crooke, NASA Goddard Space Flight Ctr. (United States)
James J. Lyons, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 2814:
Cryogenic Optical Systems and Instruments VII
Lawrence G. Burriesci; James B. Heaney, Editor(s)

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