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Proceedings Paper

Optical calibration of the Global Ultraviolet Imager (GUVI)
Author(s): David C. Humm; Bernard S. Ogorzalek; Michael J. Elko; Daniel Morrison; Larry J. Paxton
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Paper Abstract

The Global Ultraviolet Imager of the NASA Thermosphere, Ionosphere, and Mesosphere Energetics and Dynamics mission has been calibrated at the Optical Calibration Facility of the Applied Physics Laboratory. This spectrographic imager has a 0.74 degree(s) X 11.6 degree(s) field-of-view, a 140 degree(s) X 11.6 degree(s) field-of-regard and collects data in 176 wavelength bins in the spectral range from 120 - 180 nm. The calibration of this far ultraviolet instrument requires continuously variable wavelengths and angles within a high- vacuum system from the light source to the instrument. An optical calibration facility has been developed providing a bright, uniform, wavelength-selectable, collimated light beam, which is mapped in situ to correct for intensity drifts in the lamp. The facility design and the calibration procedure are discussed.

Paper Details

Date Published: 28 September 1999
PDF: 12 pages
Proc. SPIE 3818, Ultraviolet Atmospheric and Space Remote Sensing: Methods and Instrumentation II, (28 September 1999); doi: 10.1117/12.364144
Show Author Affiliations
David C. Humm, Johns Hopkins Univ. (United States)
Bernard S. Ogorzalek, Johns Hopkins Univ. (United States)
Michael J. Elko, Johns Hopkins Univ. (United States)
Daniel Morrison, Johns Hopkins Univ. (United States)
Larry J. Paxton, Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 3818:
Ultraviolet Atmospheric and Space Remote Sensing: Methods and Instrumentation II
George R. Carruthers; Kenneth F. Dymond, Editor(s)

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