Aurora & Space WeatherHome › Geomagnetic history › 2003
Geomagnetic activity in February 2003
Mean Ap16.9No. 251 of 1138
G1+ days6
G3+ days0
Max Ap522 Feb 2003
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Feb 2003 | 5- | 14 | G1 |
| 2 Feb 2003 | 6- | 52 | G2 |
| 3 Feb 2003 | 5o | 22 | G1 |
| 4 Feb 2003 | 6- | 31 | G2 |
| 18 Feb 2003 | 5+ | 21 | G1 |
| 27 Feb 2003 | 5o | 30 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 2002 | 10.2 | 4 | 0 |
| February 2003 | 16.9 | 6 | 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 16.9 in February 2003, No. 251 of 1138 months since 1932; 6 days reached G1 or higher.