List of magnetic storms in April 2009
Location — Ulan-Ude (geographic coordinates — 51.83 N 107.6 E | time zone UTC+08)
There were no days with an increased level of geomagnetic disturbance in April 2009
Maximum of solar activity in April 2009
Solar radio flux (10.7 cm) = 71
Mean planetary A index = 12
Mean planetary Kp index = 4