GOES - X-ray flare-like events
             Daily summary
from 20130520 1958 to 20130521 0957  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20130520    2005 - 2025          C    -5.7932
    20130520    2038 - 2045          C    -5.9547
    20130520    2110 - 2134          C    -5.9318
    20130520    2146 - 2156          C    -5.9586
    20130520    2229 - 2233          C    -5.857
    20130521    0008 - 0027          C    -5.8239
    20130521    0746 - 0751          C    -5.9318
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.