Prelaunch characterization of JPSS VIIRS crosstalk

The Visible Infrared Imaging Radiometer Suite (VIIRS) instrument is a key component of the Joint Polar Satellite System (JPSS). VIIRS are currently operating on-board the JPSS-1/NOAA-20 and JPSS-2/NOAA-21 spacecraft in addition to the Suomi-National Polar-orbiting Partnership (SNPP) satellite. Two additional VIIRS instruments, designated for JPSS-3 and JPSS-4 have completed their instrument-level pre-launch testing campaigns. Within the pre-launch characterization program, multiple tests are performed to assess the impact of electronic and optical crosstalk between bands and detectors in both ambient and simulated space environment (thermal vacuum) environments. Though the specific crosstalk behavior of each instrument is unique, the overall crosstalk performance has remained steady or improved with each successive unit. Additionally, performance specifications and test procedures have evolved over the JPSS test program, which has spanned over a decade. We present a comprehensive review of VIIRS crosstalk measured during pre-launch testing along with analysis and direct comparisons between VIIRS sensor builds.