GOES - X-ray flare-like events Daily summary from 20110620 1957 to 20110621 0956 (YYYYMMDD hhmm UT) date start-end time class log10(X) (YYYYMMDD) (hhmm UT) 20110621 0204 - 0634 C -5.1107 Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.