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Proceedings Paper

Measured polarized spectral responsivity of JPSS J1 VIIRS using the NIST T-SIRCUS
Author(s): Jeff McIntire; James B. Young; David Moyer; Eugene Waluschka; Xiaoxiong Xiong
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Paper Abstract

Recent pre-launch measurements performed on the Joint Polar Satellite System (JPSS) J1 Visible Infrared Imaging Radiometer Suite (VIIRS) using the NIST T-SIRCUS monochromatic source have provided wavelength dependent polarization sensitivity for select spectral bands and viewing conditions. Measurements were made at a number of input linear polarization states (twelve in total) and initially at thirteen wavelengths across the bandpass (later expanded to seventeen for some cases). Using the source radiance information collected by an external monitor, a spectral responsivity function was constructed for each input linear polarization state. Additionally, an unpolarized spectral responsivity function was derived from these polarized measurements. An investigation of how the centroid, bandwidth, and detector responsivity vary with polarization state was weighted by two model input spectra to simulate both ground measurements as well as expected on-orbit conditions. These measurements will enhance our understanding of VIIRS polarization sensitivity, improve the design for future flight models, and provide valuable data to enhance product quality in the post-launch phase.

Paper Details

Date Published: 8 September 2015
PDF: 8 pages
Proc. SPIE 9607, Earth Observing Systems XX, 96072D (8 September 2015); doi: 10.1117/12.2188515
Show Author Affiliations
Jeff McIntire, Sigma Space Corp. (United States)
James B. Young, Stellar Solutions Inc. (United States)
David Moyer, The Aerospace Corp. (United States)
Eugene Waluschka, NASA Goddard Space Flight Ctr. (United States)
Xiaoxiong Xiong, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 9607:
Earth Observing Systems XX
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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