GOES - X-ray flare-like events
             Daily summary
from 20130503 1958 to 20130504 1012  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20130503    1958 - 2124          C    -5.8327
    20130504    0313 - 0333          C    -5.6055
    20130504    0546 - 0607          C    -5.6861
    20130504    0733 - 0736          C    -5.9666
    20130504    0754 - 0815          C    -5.4237
    20130504    0825 - 0836          C    -5.8962
    20130504    0954 - 1005          C    -5.9747
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.