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Proceedings Paper

SPIRIT II: a rocketborne interferometer spectrometer
Author(s): John D. Elwell
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Paper Abstract

A cryogenic Michelson Fourier transform interferometer-spectrometer (FTIR) was built and flown as part of the second Spatial sPectral Infrared Rocketborne Interferometer Telescope (SPIRIT II) payload. The flex-pivot mirror-translation interferometer was designed to obtain spectral data from 2 to 28 micrometers. Two different scan rates and resolutions were provided: 10 cm-1 at 2 seconds per scan, and 2 cm-1 at 10 seconds per scan. A laser reference channel was run antiparallel to the main channel to provide sampling information. The system was calibrated using an infrared calibration system built specifically for SPIRIT II. The payload was launched from the University of Alaska's Poker Flat Research Range on March 28, 1992, and successfully collected auroral emissions data.

Paper Details

Date Published: 1 October 1993
PDF: 9 pages
Proc. SPIE 2019, Infrared Spaceborne Remote Sensing, (1 October 1993); doi: 10.1117/12.157836
Show Author Affiliations
John D. Elwell, Utah State Univ. (United States)

Published in SPIE Proceedings Vol. 2019:
Infrared Spaceborne Remote Sensing
Marija S. Scholl, Editor(s)

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