GOES - X-ray flare-like events
             Daily summary
from 20130730 1958 to 20130731 0957  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20130730    2208 - 2245          C    -5.5031
    20130731    0509 - 0542          C    -5.8069
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.