GOES - X-ray flare-like events
             Daily summary
from 20110322 1912 to 20110323 1042  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20110322    2143 - 2304          C    -5.7747
    20110323    0207 - 0213          C    -5.1046
    20110323    0214 - 0221          M    -4.8356
    20110323    0222 - 0238          C    -5.0137
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.