GOES - X-ray flare-like events
             Daily summary
from 20120530 2013 to 20120531 0956  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20120530    2159 - 2159          C    -5.9914
    20120531    0118 - 0140          C    -5.8153
    20120531    0528 - 0614          C    -5.8861
    20120531    0641 - 0646          C    -5.9136
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.