Rayon X:
Champ électromagnétique: |  |  | | > |
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From n3kl.org
| Normal: Solar X-ray flux is quiet (< 1.00e-6 W/m^2) |
| Active: Solar X-ray flux is active (>= 1.00e-6 W/m^2) |
| M Class Flare: An M Class flare has occurred (X-ray flux >= 1.00e-5 W/m^2) |
| X Class Flare: An X Class flare has occurred (X-ray flux >= 1.00e-4 W/m^2) |
| Mega Flare: An unprecedented X-ray event has occurred (X-ray flux >= 1.00e-3 W/m^2)
The designation "Mega Flare" was chosen by Kevin Loch when the status monitor was created on March 4, 1999.
There is no "official" designation for flares in this range.
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| Quiet: the Geomagnetic Field is quiet (Kp < 4) |
| Active: the Geomagnetic Field has been unsettled (Kp=4) |
| Storm: A Geomagnetic Storm has occurred (Kp>4)
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