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Proceedings Paper

GUVI: a hyperspectral imager for geospace
Author(s): Larry J. Paxton; Andrew B. Christensen; Daniel Morrison; Brian Wolven; Hyosub Kil; Yongliang Zhang; Bernard S. Ogorzalek; David C. Humm; John O. Goldsten; Robert DeMajistre; Ching-I. Meng
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Paper Abstract

The Global Ultraviolet Imager (GUVI) is an imaging spectrometer on the NASA TIMED spacecraft which was launched on December 7, 2001. This instrument produces a far ultraviolet (FUV) data cube of spatial and spectral information at each step of a scan mirror - that scan mirror covers 140 deg in the cross track direction - a span that includes on limb. GUVI produces simultaneous monochromatic images at five "colors" (121.6 nm, 130.4 nm, 135.6 nm, and in broader bands at 140-150 nm and 165-180 nm) as its field of view is scanned from horizon to horizon. The instrument consists of a scan mirror feeding a parabolic telescope and Rowland circle spectrometer, with a wedge-and-strip detector at the focal plane. We describe the design, and give an overview of the environmental parameters that will be measured. GUVI is a modified version of the Special Sensor Ultraviolet Spectrographic Imager (SSUSI), which was launched on the DMSP Block 5D3 F16 satellite on October 18, 2003 and is slated to fly on DMSP satellites F17 through F20, as well. We present some results the science analysis of the GUVI data to demonstrate its relevance to the space weather community.

Paper Details

Date Published: 30 December 2004
PDF: 13 pages
Proc. SPIE 5660, Instruments, Science, and Methods for Geospace and Planetary Remote Sensing, (30 December 2004); doi: 10.1117/12.579171
Show Author Affiliations
Larry J. Paxton, Johns Hopkins Univ. (United States)
Andrew B. Christensen
Daniel Morrison, Johns Hopkins Univ. (United States)
Brian Wolven, Johns Hopkins Univ. (United States)
Hyosub Kil, Johns Hopkins Univ. (United States)
Yongliang Zhang, Johns Hopkins Univ. (United States)
Bernard S. Ogorzalek, Johns Hopkins Univ. (United States)
David C. Humm, Johns Hopkins Univ. (United States)
John O. Goldsten, Johns Hopkins Univ. (United States)
Robert DeMajistre, Johns Hopkins Univ. (United States)
Ching-I. Meng, Johns Hopkins Univ. (United States)

Published in SPIE Proceedings Vol. 5660:
Instruments, Science, and Methods for Geospace and Planetary Remote Sensing
Carl A. Nardell; Paul G. Lucey; Jeng-Hwa Yee; James B. Garvin, Editor(s)

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