GOES - X-ray flare-like events
             Daily summary
from 20131226 1900 to 20131227 1126  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20131227    0733 - 0738          C    -5.9431
    20131227    0937 - 0947          C    -5.757
    20131227    1030 - 1032          C    -5.983
    20131227    1114 - 1126          C    -5.699
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.