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Geomagnetic activity in October 2008
Mean Ap6.5No. 1035 of 1138
G1+ days1
G3+ days0
Max Ap3411 Oct 2008
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 11 Oct 2008 | 6+ | 34 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| October 2007 | 6.8 | 2 | 0 |
| October 2008 | 6.5 | 1 | 0 |
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
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Mean Ap 6.5 in October 2008, No. 1035 of 1138 months since 1932; 1 days reached G1 or higher.