GOES - X-ray flare-like events Daily summary from 20131128 1913 to 20131129 1112 (YYYYMMDD hhmm UT) date start-end time class log10(X) (YYYYMMDD) (hhmm UT) 20131128 1949 - 1951 C -5.9872 20131129 1004 - 1009 C -5.8069 Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.