On-orbit OCI characterization measurements from the first six months of the PACE mission

Gerhard Meister; Joseph J. Knuble; Julia A. Barsi; Robert Bousquet; Leland H. Chemerys; Robert E. Eplee; Ulrik Gliese; Samuel Kitchen-McKinley; Shihyan Lee; Jeffrey W. McIntire; Frederick S. Patt; P. Jeremy Werdell

doi:10.1117/12.3033581

20 November 2024 On-orbit OCI characterization measurements from the first six months of the PACE mission

Gerhard Meister, Joseph J. Knuble, Julia A. Barsi, Robert Bousquet, Leland H. Chemerys, Robert E. Eplee, Ulrik Gliese, Samuel Kitchen-McKinley, Shihyan Lee, Jeffrey W. McIntire, Frederick S. Patt, P. Jeremy Werdell

Author Affiliations +

Proceedings Volume 13192, Sensors, Systems, and Next-Generation Satellites XXVIII; 131920A (2024) https://doi.org/10.1117/12.3033581
Event: Remote Sensing, 2024, Edinburgh, United Kingdom

Abstract

The Ocean Color Instrument (OCI) on NASA’s Plankton, Aerosol, Cloud, and ocean Ecosystem (PACE) mission has been providing data to the science community since April 2024. OCI is a hyperspectral imager, providing almost daily global coverage, at a spatial resolution of 1.2km. Its design specifications were optimized for ocean color and atmospheric applications, but terrestrial studies could benefit from its hyperspectral coverage as well. The ocean color requirements called for very high radiometric accuracy, which could benefit a wide variety of applications. This paper presents results from the first 6 months of on-orbit calibration and characterization measurements, including absolute calibration, spectral registration, temporal trending of radiometric sensitivity, signal to noise ratio, and linearity, with a focus on the commissioning results obtained in the first 2 months after launch.

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

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Gerhard Meister, Joseph J. Knuble, Julia A. Barsi, Robert Bousquet, Leland H. Chemerys, Robert E. Eplee, Ulrik Gliese, Samuel Kitchen-McKinley, Shihyan Lee, Jeffrey W. McIntire, Frederick S. Patt, and P. Jeremy Werdell "On-orbit OCI characterization measurements from the first six months of the PACE mission", Proc. SPIE 13192, Sensors, Systems, and Next-Generation Satellites XXVIII, 131920A (20 November 2024); https://doi.org/10.1117/12.3033581

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