2.0.0 spase://SMWG/Instrument/SORCE/XPS Extreme Ultraviolet Photometer System (XPS) XPS 2019-05-05T12:34:56Z XPS (Xuv Photometer System) is a 3.6 kg, 9 W photometer which invokes filters to monitor the x-ray and UV band at 1-34 nm, at a resolution of about seven nm, and at an irradiance accuracy of about 15%. spase://SMWG/Person/Gary.J.Rottman PrincipalInvestigator NSSDC's Master Catalog https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=2003-004A&ex=4 Information about the XPS (Xuv Photometer System) experiment on the SORCE mission. Photometer XPS (Xuv Photometer System) on SORCE spase://SMWG/Observatory/SORCE