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Geomagnetic activity in May 2007
Mean Ap7.9No. 950 of 1138
G1+ days3
G3+ days0
Max Ap3423 May 2007
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 7 May 2007 | 5o | 16 | G1 |
| 23 May 2007 | 5+ | 34 | G1 |
| 24 May 2007 | 6- | 30 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| May 2006 | 7.0 | 3 | 0 |
| May 2007 | 7.9 | 3 | 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 7.9 in May 2007, No. 950 of 1138 months since 1932; 3 days reached G1 or higher.