GOES - X-ray flare-like events
             Daily summary
from 20111219 1913 to 20111220 1111  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20111220    0041 - 0055          C    -5.8125
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.