GOES - X-ray flare-like events
             Daily summary
from 20131215 1913 to 20131216 1112  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20131216    0106 - 0118          C    -5.8125
    20131216    0324 - 0401          C    -5.4342
    20131216    0620 - 0621          C    -5.8861
    20131216    0840 - 0848          C    -5.7055
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.