GOES - X-ray flare-like events
             Daily summary
from 20131225 1900 to 20131226 1127  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20131225    1910 - 1910          C    -6
    20131226    0656 - 0710          C    -5.6498
    20131226    0803 - 0803          C    -6
    20131226    0813 - 0922          C    -5.8633
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.