GOES - X-ray flare-like events
             Daily summary
from 20110920 2013 to 20110921 1009  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20110920    2013 - 0140          C    -5.5129
    20110921    0143 - 0514          C    -5.8447
    20110921    0632 - 0856          C    -5.7033
    20110921    0910 - 0910          C    -6
    20110921    0912 - 0921          C    -5.983
    20110921    0931 - 0936          C    -5.9872
    20110921    0945 - 1009          C    -5.9318
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.