List of magnetic storms in September 2011
Location — Station Mirny (geographic coordinates — 66.55 S 93 E | time zone UTC+03)
Days with magnetic storms — 12
03 September 2011 — Magnetic storm of level G2
06 September 2011 — Magnetic storm of level G1
09 September 2011 — Magnetic storm of level G2
10 September 2011 — Magnetic storm of level G1
11 September 2011 — Magnetic storm of level G1
12 September 2011 — Magnetic storm of level G2
13 September 2011 — Magnetic storm of level G2
17 September 2011 — Magnetic storm of level G3
26 September 2011 — Magnetic storm of level G3
27 September 2011 — Magnetic storm of level G2
28 September 2011 — Magnetic storm of level G3
29 September 2011 — Magnetic storm of level G1
Days with geomagnetic disturbances — 3
04 September 2011 — geomagnetic disturbances
18 September 2011 — geomagnetic disturbances
21 September 2011 — geomagnetic disturbances
Maximum of solar activity in September 2011
Solar radio flux (10.7 cm) = 190
Mean planetary A index = 57
Mean planetary Kp index = 7