Geomagnetic storms in Charleston — Dec 31, 2009
Geomagnetic storms in Charleston on Dec 31, 2009
the Earth's magnetosphere was quiet (Kp = 1.00)
Geomagnetic storms in the last 3 days
Changes in the geomagnetic index Kp from December 29 to 31, 2009 for mid latitudes
Location — Charleston (geographic coordinates — 38.35 N -81.63 W | time zone UTC-05)

This chart in PNG format — high resolution
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Geomagnetic storms in Charleston in December 2009
Changes in the maximum daily geomagnetic index Kp in December 2009 for mid latitudes
Location — Charleston (geographic coordinates — 38.35 N -81.63 W | time zone UTC-05)

This chart in PNG format — high resolution
API data: JSON or TXT
Other activity indices
Index AP = 1
Index F10.7 = 80