Chart originally from http://sec.noaa.gov/rt_plots/xray_1m.html



Mega flare

GOES 12 GOES 10
Cur 2124 X1.0 Ratio 0.128
2124 X1.0 Ratio 0.121
Beg 2037 C9.5

2037 C9.0

Max 2049 X 11 Int 9.11e-01 J m-2
2049 X 10 Int 8.74e-01 J m-2
End 2100 X5.4

2101 X4.6

This GOES X-ray flux plot contains 1 minute averages of solar X-ray output in the 1-8 Angstrom (0.1-0.8 nm) and 0.5-4.0 Angstrom (0.05-0.4 nm) passbands. Data from both operational GOES satellites are included. Some data dropouts will occur during satellite eclipses. SEC alerts are issued at the M5 (5x10E-5 Watts/m2) and X1 (1x10E-4 Watts/m2) levels, based upon 1-minute data. Large X-ray bursts cause short wave fades for HF propagation paths through the sunlit hemisphere. Some large flares are accompanied by strong solar radio bursts that may interfere with satellite downlinks.


CME aimed at Earth, SOHO image.

CME


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