JPSS-4 VIIRS prelaunch calibration performance and assessment

Amit Angal; David Moyer; Xiaoxiong Xiong; Daniel Link; Thomas Schwarting; Jeff McIntire; Qiang Ji; Chengbo Sun

doi:10.1117/12.3031671

20 November 2024 JPSS-4 VIIRS prelaunch calibration performance and assessment

Amit Angal, David Moyer, Xiaoxiong Xiong, Daniel Link, Thomas Schwarting, Jeff McIntire, Qiang Ji, Chengbo Sun

Proceedings Volume 13192, Sensors, Systems, and Next-Generation Satellites XXVIII; 131920Y (2024) https://doi.org/10.1117/12.3031671
Event: Remote Sensing, 2024, Edinburgh, United Kingdom

Abstract

The Visible Infrared Imaging Radiometer Suite (VIIRS), a key instrument in the Joint Polar Satellite System constellation, generates high fidelity land, ocean, and atmospheric data for a suite of science products that include monitoring of vegetation, algal blooms, wildfires, drought, flooding etc. There are three VIIRS instruments on orbit, one on each of the following: Suomi National Polar-orbiting partnership, NOAA-20 (formerly JPSS-1), and NOAA- 21 (formerly JPSS-2) spacecraft. Starting March 2024, NOAA-21 and NOAA-20 are the primary and secondary satellites of the constellation and providing meteorologists detailed information on severe weather events. In addition to the 21 spectral bands, covering the wavelength range from 0.41 to 12.2 μm, VIIRS has a day-night band (DNB) that collects valuable daytime and nighttime measurements at three different gain stages. The VIIRS instrument on the JPSS-4 spacecraft, scheduled to launch in 2027, recently (in Fall 2023) underwent sensor thermal vacuum (TVAC) environmental testing. Several key performance parameters such as the instrument gains, detector SNR or NEdT, dynamic range, relative spectral response, response versus scan angle, polarization sensitivity, stray light, and nearfield response were characterized during the various testing phases. In this paper, we provide an overview of the JPSS- 4 VIIRS prelaunch calibration activities, with a focus on radiometric performance assessments and their comparisons with previous VIIRS instruments.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Amit Angal, David Moyer, Xiaoxiong Xiong, Daniel Link, Thomas Schwarting, Jeff McIntire, Qiang Ji, and Chengbo Sun "JPSS-4 VIIRS prelaunch calibration performance and assessment", Proc. SPIE 13192, Sensors, Systems, and Next-Generation Satellites XXVIII, 131920Y (20 November 2024); https://doi.org/10.1117/12.3031671

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KEYWORDS

Sensors

Equipment

Calibration

Polarization

Spectral response

Black bodies

Magnesium

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