GOES - X-ray flare-like events
             Daily summary
from 20130217 1900 to 20130218 1112  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20130217    2000 - 2000          C    -5.9957
    20130218    0241 - 0241          C    -6
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.