GOES - X-ray flare-like events
             Daily summary
from 20130513 1958 to 20130514 1012  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20130513    1958 - 0102          C    -5.0788
    20130514    0103 - 0106          M    -4.1593
    20130514    0107 - 0127          X    -3.4908
    20130514    0128 - 0248          M    -4.0191
    20130514    0249 - 0646          C    -5.0074
    20130514    0651 - 0653          C    -5.9957
    20130514    0655 - 0656          C    -6
    20130514    0706 - 0716          C    -5.9393
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.