Prelaunch characterization and performance of JPSS-3 VIIRS reflective solar bands

Amit Angal; David Moyer; Qiang Ji; Jeff McIntire; Xiaoxiong Xiong

doi:10.1117/12.2594781

1 August 2021 Prelaunch characterization and performance of JPSS-3 VIIRS reflective solar bands

Amit Angal, David Moyer, Qiang Ji, Jeff McIntire, Xiaoxiong Xiong

Proceedings Volume 11829, Earth Observing Systems XXVI; 118290L (2021) https://doi.org/10.1117/12.2594781
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

The Joint Polar Satellite System 3 (JPSS-3) Visible Infrared Imaging Radiometer Suite (VIIRS) instrument is the fourth in a series (S-NPP VIIRS launched in October 2011, JPSS-1 VIIRS launched in November 2017, and JPSS-2 VIIRS currently undergoing spacecraft integration) of highly advanced polar-orbiting environmental satellites. JPSS- 3 VIIRS underwent a comprehensive sensor-level Thermal Vacuum (TV) testing at the Raytheon Technologies El Segundo facility in the fall of 2020. While the test program provided characterization for many spatial, spectral, and radiometric aspects of the VIIRS sensor performance, this paper focuses on the radiometric performance of the 14 reflective solar bands (RSB) that cover the wavelength range from 0.41 to 2.3 μm. Key calibration parameters, such as the instrument gain, signal-to-noise ratio (SNR), dynamic range and radiometric uniformity, were derived in a TV environment for both the primary and redundant electronics at three instrument temperature plateaus: cold, nominal, and hot. This paper shows that all the JPSS-3 VIIRS RSB detectors have been well characterized, with the key performance metrics being comparable to those of the previous VIIRS instruments. Comparison of radiometric performance to sensor requirements, as well as a summary of key sensor testing and performance issues, will also be presented.

Conference Presentation

Citation Download Citation

Amit Angal, David Moyer, Qiang Ji, Jeff McIntire, and Xiaoxiong Xiong "Prelaunch characterization and performance of JPSS-3 VIIRS reflective solar bands", Proc. SPIE 11829, Earth Observing Systems XXVI, 118290L (1 August 2021); https://doi.org/10.1117/12.2594781

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