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Geomagnetic activity in May 2010
Mean Ap8.1No. 925 of 1138
G1+ days4
G3+ days0
Max Ap362 May 2010
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 May 2010 | 6o | 36 | G2 |
| 3 May 2010 | 5o | 24 | G1 |
| 29 May 2010 | 5+ | 28 | G1 |
| 30 May 2010 | 5o | 21 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| May 2009 | 3.9 | 0 | 0 |
| May 2010 | 8.1 | 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 8.1 in May 2010, No. 925 of 1138 months since 1932; 4 days reached G1 or higher.