Magnetic storms on Apr 21, 2011
Geomagnetic storms on Apr 21, 2011
No geomagnetic storms were observed on Apr 21, 2011Magnetic storms for the last 3 days
Max solar activity on Apr 21, 2011
Solar radio flux (10.7 cm) = 117
Mean planetary A index = 15
Mean planetary Kp index = 2 (15 nT)