VIIRS/J1 polarization narrative

Eugene Waluschka; Joel McCorkel; Jeff McIntire; David Moyer; Brendan McAndrew; Steven W. Brown; Keith R. Lykke; James B. Young; Eric Fest; James Butler; Tung R. Wang; Eslim O. Monroy; Kevin Turpie; Gerhard Meister; Kurtis J. Thome

doi:10.1117/12.2190138

8 September 2015 VIIRS/J1 polarization narrative

Eugene Waluschka, Joel McCorkel, Jeff McIntire, David Moyer, Brendan McAndrew, Steven W. Brown, Keith R. Lykke, James B. Young, Eric Fest, James Butler, Tung R. Wang, Eslim O. Monroy, Kevin Turpie, Gerhard Meister, Kurtis J. Thome

Author Affiliations +

Proceedings Volume 9607, Earth Observing Systems XX; 960712 (2015) https://doi.org/10.1117/12.2190138
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

The polarization sensitivity of the Visible/NearIR (VISNIR) bands in the Joint Polar Satellite Sensor 1 (J1) Visible Infrared Imaging Radiometer Suite (VIIRS) instrument was measured using a broadband source. While polarization sensitivity for bands M5-M7, I1, and I2 was less than 2.5 %, the maximum polarization sensitivity for bands M1, M2, M3, and M4 was measured to be 6.4 %, 4.4 %, 3.1 %, and 4.3 %, respectively with a polarization characterization uncertainty of less than 0.38%. A detailed polarization model indicated that the large polarization sensitivity observed in the M1 to M4 bands is mainly due to the large polarization sensitivity introduced at the leading and trailing edges of the newly manufactured VISNIR bandpass focal plane filters installed in front of the VISNIR detectors. This was confirmed by polarization measurements of bands M1 and M4 bands using monochromatic light. Discussed are the activities leading up to and including the two polarization tests, some discussion of the polarization model and the model results, the role of the focal plane filters, the polarization testing of the Aft-Optics-Assembly, the testing of the polarizers at the National Aeronautics and Space Administration’s (NASA) Goddard center and at the National Institute of Science and Technology (NIST) facility and the use of NIST’s Traveling Spectral Irradiance and Radiance responsivity Calibrations using Uniform Sources (T-SIRCUS) for polarization testing and associated analyses and results.

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Eugene Waluschka, Joel McCorkel, Jeff McIntire, David Moyer, Brendan McAndrew, Steven W. Brown, Keith R. Lykke, James B. Young, Eric Fest, James Butler, Tung R. Wang, Eslim O. Monroy, Kevin Turpie, Gerhard Meister, and Kurtis J. Thome "VIIRS/J1 polarization narrative", Proc. SPIE 9607, Earth Observing Systems XX, 960712 (8 September 2015); https://doi.org/10.1117/12.2190138

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