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Geomagnetic activity in May 1997
Mean Ap8.2No. 917 of 1138
G1+ days4
G3+ days1
Max Ap5615 May 1997
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 May 1997 | 6+ | 29 | G2 |
| 2 May 1997 | 5o | 14 | G1 |
| 15 May 1997 | 7- | 56 | G3 |
| 27 May 1997 | 6o | 21 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| May 1996 | 6.6 | 0 | 0 |
| May 1997 | 8.2 | 4 | 1 |
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 8.2 in May 1997, No. 917 of 1138 months since 1932; 4 days reached G1 or higher.