GOES - X-ray flare-like events Daily summary from 20120618 1957 to 20120619 0956 (YYYYMMDD hhmm UT) date start-end time class log10(X) (YYYYMMDD) (hhmm UT) 20120619 0431 - 0508 C -5.8697 Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.