Magnetic storms on Apr 20, 2011
Geomagnetic storms on Apr 20, 2011
Geomagnetic storms were observed on Apr 20, 2011- Magnetic storm of level G1 (minor) from 03:00 to 06:00
Magnetic storms for the last 3 days
Max solar activity on Apr 20, 2011
Solar radio flux (10.7 cm) = 117
Mean planetary A index = 15
Mean planetary Kp index = 4 (52 nT)