The XUV Photometer System (XPS) is one of four solar irradiance measurement experiments that was launched in January 2003 as part of the Solar Radiation and Climate Experiment (SORCE). XPS measures the solar X-ray ultraviolet (XUV) irradiance.
Due to wildfires in California, NASA's PO.DAAC and JPL are experiencing operational disruptions, which may affect their websites and processing for SMAP, MLS, SWOT, and Sentinel-6a data.
Learn more.