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Proceedings Paper

An improved algorithm for VIIRS Day/Night Band (DNB) high gain stage (HGS) dark offset determination
Author(s): Yalong Gu; Sirish Uprety; Slawormir Blonski; Bin Zhang; Changyong Cao
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Paper Abstract

With comprehensive analysis of the VIIRS DNB on-board calibrator blackbody (OBCBB) data and Earth View (EV) data, it is shown that the DNB OBCBB data can only track the dark current component of the DNB HGS EV dark offset. The DNB observation of deep space during the spacecraft pitch maneuver was also contaminated by star lights. With these acquired knowledge, we propose an improved algorithm for determining the DNB HGS dark offset that is both free from light contamination and capable of tracking drifts continuously. The new algorithm is expected to improve the DNB radiometric performance at low radiance level.

Paper Details

Date Published: 7 September 2018
PDF: 9 pages
Proc. SPIE 10764, Earth Observing Systems XXIII, 107641J (7 September 2018); doi: 10.1117/12.2322923
Show Author Affiliations
Yalong Gu, ERT, Inc. (United States)
Sirish Uprety, Univ. of Maryland, College Park (United States)
Slawormir Blonski, ERT, Inc. (United States)
Bin Zhang, ERT, Inc. (United States)
Changyong Cao, NOAA National Environmental Satellite, Data, and Information Service (United States)

Published in SPIE Proceedings Vol. 10764:
Earth Observing Systems XXIII
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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