GOES - X-ray flare-like events Daily summary from 20120319 1913 to 20120320 1042 (YYYYMMDD hhmm UT) date start-end time class log10(X) (YYYYMMDD) (hhmm UT) 20120319 2200 - 2222 C -5.451 Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.