GOES - X-ray flare-like events
             Daily summary
from 20131223 1900 to 20131224 1127  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20131223    1917 - 1939          C    -5.5302
    20131223    1957 - 2003          C    -5.6326
    20131223    2104 - 2105          C    -5.9393
    20131223    2351 - 2351          C    -5.9957
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.