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VIIRS/J1 Polarization Narrative

Published

Author(s)

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

Abstract

The VIS/NIR bands polarization sensitivity of Joint Polar Satellite Sensor 1 (JPSS1) 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 0.3%. A detailed polarization model indicated that the large polarization sensitivity observed in the M1 to M4 bands was 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 instruments 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 Goddard and NIST and the use of NIST's T-SIRCUS for polarization testing and associated analyses and results.
Citation
SPIE Conference Proceedings

Keywords

JPSS, VIIRS, T-SIRCUS, polarization

Citation

Lykke, K. , Brown, S. , Waluschka, E. , McCorkel, J. , McIntire, J. , Moyer, D. , McAndrew, B. , Young, J. , Fest, E. , Butler, J. , Wang, T. , Monroy, E. , Turpie, K. , Meister, G. and Thome, K. (2015), VIIRS/J1 Polarization Narrative, SPIE Conference Proceedings, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918879 (Accessed April 22, 2024)
Created September 14, 2015, Updated October 12, 2021