Current Kp-index (provisional data)

Data from GFZ Potsdam (planetary 3-hourly index of geomagnetic activity)

Sunspot numbers from WDC-SILSO, Royal Observatory of Belgium, Brussels

You can browse a Kp-index archive (1932 to present) here:

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Additional info

The activity level classification for the geomagnetic storms follows NOAA's space weather scale for geomagnetic storms. See discussion in the forum of the Arbeitskreis Meteore e.V. (AKM).

All dates and times are UTC.

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