Magnetic storms on Dec 31, 2011
Geomagnetic storms on Dec 31, 2011
No geomagnetic storms were observed on Dec 31, 2011Magnetic storms for the last 3 days
Max solar activity on Dec 31, 2011
Solar radio flux (10.7 cm) = 141
Mean planetary A index = 4
Mean planetary Kp index = 1 (7 nT)