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Geomagnetic activity in January 2002
Mean Ap8.1No. 922 of 1138
G1+ days2
G3+ days0
Max Ap2711 Jan 2002
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 10 Jan 2002 | 5o | 19 | G1 |
| 11 Jan 2002 | 5o | 27 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 2001 | 8.3 | 3 | 0 |
| January 2002 | 8.1 | 2 | 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.
← December 2001February 2002 →
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Mean Ap 8.1 in January 2002, No. 922 of 1138 months since 1932; 2 days reached G1 or higher.