GOES - X-ray flare-like events
             Daily summary
from 20120316 1913 to 20120317 1041  (YYYYMMDD hhmm UT)
 
   date     start-end time       class  log10(X)
(YYYYMMDD)     (hhmm UT)
    20120317    0311 - 0313          C    -5.9666
 
 
Used are solar X-ray fluxes measured by GOES 15 in the 1-8 Angstrom passband.