GOES - X-ray flare-like events
             Daily summary
from 20130817 2012 to 20130818 1012  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20130817    2012 - 0121          C    -5.1337
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.