The NOAA-20 Visible Infrared Imaging Radiometer Suite (VIIRS) Near Real Time (NRT) Vegetation Indices 8-Day L3 Global 500m SIN Grid data, short-name VJ113A4N Version 2 (V2) data product provides vegetation indices every day by selecting the best available pixel over the period of previous eight days. The VJ113A4N includes three vegetation indices: The Normalized Difference Vegetation Index (NDVI), the Enhanced Vegetation Index (EVI), and the Enhanced Vegetation Index-2 (EVI2), layers for NIR reflectance; three shortwave infrared (SWIR) reflectance; red, blue, and green reflectance; pixel reliability; relative azimuth, view, and sun angles; and a quality layer all at 500-meter spatial resolution.

More information about the product can be found in the VIIRS Vegetation Indices User Guide and details about V2 specific changes can be found in this VIIRS Land V2 Changes document.