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Geomagnetic activity in January 2011
Mean Ap5.5No. 1079 of 1138
G1+ days1
G3+ days0
Max Ap167 Jan 2011
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 7 Jan 2011 | 5o | 16 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 2010 | 3.0 | 0 | 0 |
| January 2011 | 5.5 | 1 | 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.
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About this page
Mean Ap 5.5 in January 2011, No. 1079 of 1138 months since 1932; 1 days reached G1 or higher.