GOES - X-ray flare-like events
             Daily summary
from 20110411 1957 to 20110412 1024  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20110411    2029 - 2040          C    -5.7375
    20110411    2346 - 0003          C    -5.5969
    20110412    0344 - 0353          C    -5.7496
    20110412    0605 - 0616          C    -5.5003
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.