GOES - X-ray flare-like events Daily summary from 20120226 1913 to 20120227 1112 (YYYYMMDD hhmm UT) date start-end time class log10(X) (YYYYMMDD) (hhmm UT) 20120226 2139 - 2150 C -5.6345 Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.