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Geomagnetic activity in May 2002
Mean Ap12.3No. 561 of 1138
G1+ days6
G3+ days2
Max Ap7823 May 2002
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 11 May 2002 | 7- | 49 | G3 |
| 12 May 2002 | 5- | 15 | G1 |
| 14 May 2002 | 5o | 29 | G1 |
| 18 May 2002 | 5+ | 14 | G1 |
| 23 May 2002 | 8+ | 78 | G4 |
| 27 May 2002 | 5- | 22 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| May 2001 | 10.2 | 4 | 0 |
| May 2002 | 12.3 | 6 | 2 |
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 12.3 in May 2002, No. 561 of 1138 months since 1932; 6 days reached G1 or higher.