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Geomagnetic activity in May 2003
Mean Ap26.1No. 49 of 1138
G1+ days17
G3+ days4
Max Ap10929 May 2003
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 May 2003 | 7- | 43 | G3 |
| 2 May 2003 | 5o | 15 | G1 |
| 6 May 2003 | 5+ | 28 | G1 |
| 7 May 2003 | 6- | 38 | G2 |
| 8 May 2003 | 6- | 39 | G2 |
| 9 May 2003 | 5+ | 31 | G1 |
| 10 May 2003 | 7- | 42 | G3 |
| 11 May 2003 | 6- | 31 | G2 |
| 13 May 2003 | 5- | 24 | G1 |
| 14 May 2003 | 5o | 29 | G1 |
| 21 May 2003 | 6o | 29 | G2 |
| 22 May 2003 | 5+ | 26 | G1 |
| 27 May 2003 | 6- | 30 | G2 |
| 28 May 2003 | 6- | 34 | G2 |
| 29 May 2003 | 8+ | 109 | G4 |
| 30 May 2003 | 7+ | 59 | G3 |
| 31 May 2003 | 5+ | 20 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| May 2002 | 12.3 | 6 | 2 |
| May 2003 | 26.1 | 17 | 4 |
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 26.1 in May 2003, No. 49 of 1138 months since 1932; 17 days reached G1 or higher.