SNPP VIIRS spectral response lessons learned and their impacts on JPSS VIIRS performance

A primary sensor on-board the Suomi-National Polar-orbiting Partnership (SNPP) spacecraft, the Visible Infrared Imaging Radiometer Suite (VIIRS) has 22 bands: 14 reflective solar bands (RSBs), 7 thermal emissive bands (TEBs) and a Day Night Band (DNB). The RSBs cover the spectral wavelengths between 0.412 to 2.25 urn and have three (11-I3) 371m and eleven (M1-M11) 742m spatial resolution bands. Ocean Color/Chlorophyll (OCC) teams use moderate bands Ml (0.412um) through M7´s (0.865 urn) calibrated Science Data Records (SDRs) to compute their ocean chemistry products. These bands require accurate relative spectral response (RSR) and polarization sensitivity characterization to produce accurate OCC Environment Data Products (EDRs). A change in the Joint Polar Satellite System-1 (JPSS-1) VIIRS spectral filters based on SNPP VIIRS prelaunch characterization results were made to reduce out-of-band response which was failed specification on SNPP VIIRS. This paper will discuss the improvements made to the JPSS-1 VIIRS RSR performance and the resultant impact on the polarization sensitivity performance.