An overview of NOAA-21 VIIRS early on-orbit calibration and performance

Xiaoxiong Xiong; Amit Angal; Junqiang Sun; Ning Lei; Kevin Twedt; Hongda Chen; Kwofu Chiang

doi:10.1117/12.2680636

19 October 2023 An overview of NOAA-21 VIIRS early on-orbit calibration and performance

Xiaoxiong Xiong, Amit Angal, Junqiang Sun, Ning Lei, Kevin Twedt, Hongda Chen, Kwofu Chiang

Proceedings Volume 12729, Sensors, Systems, and Next-Generation Satellites XXVII; 1272916 (2023) https://doi.org/10.1117/12.2680636
Event: SPIE Remote Sensing, 2023, Amsterdam, Netherlands

Abstract

The third VIIRS instrument, launched onboard the JPSS-2 satellite (also referred to as the NOAA-21) on November 10, 2022, is currently operated in a fleet that includes the S-NPP and NOAA-20 satellites that were launched on October 28, 2011, and November 18, 2017, respectively. In this paper, we provide an overview of NOAA-21 VIIRS initial on-orbit operation and calibration activities and a comprehensive assessment of its early on-orbit performance, including analyses made during its initial post-launch testing phase as well as under current nominal operations. The instrument performance examples presented in this paper include but are not limited to its detector signal-to-noise ratios for the reflective solar bands, the noise equivalent temperature difference for the thermal emissive bands, on-orbit changes of its spectral band responses, and the performance of its on-board calibrators, such as solar diffuser on-orbit degradation and blackbody temperature stability and uniformity. Also discussed in this paper are comparisons of NOAA-21 VIIRS on-orbit performance with its predecessors on-board the S-NPP and NOAA-20 satellites over the same operating period, as well as potential improvements for NOAA-21 VIIRS as its mission continues.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaoxiong Xiong, Amit Angal, Junqiang Sun, Ning Lei, Kevin Twedt, Hongda Chen, and Kwofu Chiang "An overview of NOAA-21 VIIRS early on-orbit calibration and performance", Proc. SPIE 12729, Sensors, Systems, and Next-Generation Satellites XXVII, 1272916 (19 October 2023); https://doi.org/10.1117/12.2680636

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