Optomechanical alignment of the Composite Infrared Spectrometer (CIRS) for the Cassini mission to Saturn

John G. Hagopian; Patricia Ann Hayes; Julie A. Crooke; James J. Lyons III

doi:10.1117/12.254147

14 October 1996 Optomechanical alignment of the Composite Infrared Spectrometer (CIRS) for the Cassini mission to Saturn

John G. Hagopian, Patricia Ann Hayes, Julie A. Crooke, James J. Lyons III

Author Affiliations +

Proceedings Volume 2814, Cryogenic Optical Systems and Instruments VII; (1996) https://doi.org/10.1117/12.254147
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

John G. Hagopian, Patricia Ann Hayes, Julie A. Crooke, and James J. Lyons III "Optomechanical alignment of the Composite Infrared Spectrometer (CIRS) for the Cassini mission to Saturn", Proc. SPIE 2814, Cryogenic Optical Systems and Instruments VII, (14 October 1996); https://doi.org/10.1117/12.254147

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