AUTHOR=Meister Gerhard , Knuble Joseph J. , Chemerys Leland H. , Choi Hyeungu , Collins Nicholas R. , Eplee Robert E. , Gliese Ulrik , Gorman Eric T. , Jepsen Kim , Kitchen-McKinley Samuel , Lee Shihyan , Mcintire Jeffrey W. , Patt Frederick S. , Tse Bradley C. , Waluschka Eugene , Werdell P. Jeremy 
  
TITLE=Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) Mission
  
JOURNAL=Frontiers in Remote Sensing
  
VOLUME=Volume 3 - 2022
  
YEAR=2022
  
URL=https://www.frontiersin.org/journals/remote-sensing/articles/10.3389/frsen.2022.875863
  
DOI=10.3389/frsen.2022.875863
  
ISSN=2673-6187
  
ABSTRACT=This paper summarizes the results from the system level test campaign of the Engineering Test Unit  of the ‘Ocean Color Instrument’ (OCI), the primary payload of  NASA’s ‘Plankton, Aerosol, Cloud and ocean Ecosystem’ (PACE) mission. The main goals of the test campaign were to optimize characterization procedures and evaluate system level performance relative to model predictions. Critical performance parameters such as radiometric gain, signal-to-noise ratio, polarization, instantaneous field-of-view, temperature sensitivity, relative spectral response and stability were in line with expectations. We expect the OCI flight unit to meet the PACE mission performance requirements.