GOES - X-ray flare-like events
             Daily summary
from 20130506 1958 to 20130507 1010  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20130507    0537 - 0543          C    -5.8928
    20130507    0819 - 0835          C    -5.7799
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.