GOES - X-ray flare-like events Daily summary from 20130216 1900 to 20130217 1112 (YYYYMMDD hhmm UT) date start-end time class log10(X) (YYYYMMDD) (hhmm UT) 20130217 0036 - 0036 C -5.9957 Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.