GOES - X-ray flare-like events
             Daily summary
from 20130510 1958 to 20130511 1012  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20130510    2237 - 2252          C    -5.7375
    20130511    0256 - 0300          C    -5.8827
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.