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Proceedings Paper

On-orbit calibration of the Special Sensor Ultraviolet Scanning Imager (SSUSI): a far-UV imaging spectrograph on DMSP F-16
Author(s): Daniel Morrison; Larry J. Paxton; David C. Humm; Brian Wolven; Hyosub Kil; Yongliang Zhang; Bernard S. Ogorzalek; Ching-I. Meng
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Paper Abstract

The Special Sensor Ultraviolet Spectrographic Imager (SSUSI) is currently slated for launch on the Defense Meteorological Satellite Program (DMSP) F-16 in November 2001. This instrument consists of a scanning imaging spectrograph (SIS) whose field-of-view is scanned from horizon-to-horizon and a nadir-looking photometer system (NPS). It will provide operational information about the state of the atmosphere above 100 km. The unique problems incurred by the observational requirements (e.g. that we be able to make daytime and nighttime observations) and the design trade-offs needed to meet those requirements were strong drivers on calibration requirements. Those design trade-offs and the expectation that the instrument calibration will change appreciably in-flight have led to the requirement to perform a large instrument characterization in-flight using only natural sources. We focus, in this paper, on the flight characterization of the SSUSI instrument. This includes discussions of the stellar calibration approach for radiometric calibration, measurements of internally scattered light, sensitivity to the South Atlantic Anomaly, measurements of changing pulse height distributions, and measuring changing reflectivity of a nadir viewing scan mirror. In addition, the calibration of the NPS system using natural sources is addressed.

Paper Details

Date Published: 30 January 2002
PDF: 10 pages
Proc. SPIE 4485, Optical Spectroscopic Techniques, Remote Sensing, and Instrumentation for Atmospheric and Space Research IV, (30 January 2002); doi: 10.1117/12.454267
Show Author Affiliations
Daniel Morrison, Johns Hopkins Univ. (United States)
Larry J. Paxton, Johns Hopkins Univ. (United States)
David C. Humm, 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)
Ching-I. Meng, Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 4485:
Optical Spectroscopic Techniques, Remote Sensing, and Instrumentation for Atmospheric and Space Research IV
Allen M. Larar; Martin G. Mlynczak, Editor(s)

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