GOES - X-ray flare-like events Daily summary from 20130816 1958 to 20130817 1012 (YYYYMMDD hhmm UT) date start-end time class log10(X) (YYYYMMDD) (hhmm UT) 20130817 0329 - 0333 C -5.8729 Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.