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Geomagnetic activity in September 2006
Mean Ap7.8No. 954 of 1138
G1+ days4
G3+ days0
Max Ap2424 Sep 2006
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Sep 2006 | 6- | 20 | G2 |
| 18 Sep 2006 | 5- | 23 | G1 |
| 23 Sep 2006 | 5o | 11 | G1 |
| 24 Sep 2006 | 5o | 24 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| September 2005 | 20.2 | 8 | 4 |
| September 2006 | 7.8 | 4 | 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.
About this page
Mean Ap 7.8 in September 2006, No. 954 of 1138 months since 1932; 4 days reached G1 or higher.