GOES - X-ray flare-like events
             Daily summary
from 20111223 1913 to 20111224 1126  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20111223    1915 - 1946          C    -5.4572
    20111223    2135 - 2148          C    -5.7721
    20111224    0831 - 0909          C    -5.2832
    20111224    1113 - 1118          C    -5.9508
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.