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Geomagnetic activity in April 2012
Mean Ap10.1No. 747 of 1138
G1+ days6
G3+ days1
Max Ap4124 Apr 2012
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 12 Apr 2012 | 5- | 15 | G1 |
| 13 Apr 2012 | 5o | 20 | G1 |
| 23 Apr 2012 | 6- | 26 | G2 |
| 24 Apr 2012 | 7- | 41 | G3 |
| 25 Apr 2012 | 5+ | 27 | G1 |
| 26 Apr 2012 | 5- | 16 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 2011 | 8.7 | 5 | 0 |
| April 2012 | 10.1 | 6 | 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 10.1 in April 2012, No. 747 of 1138 months since 1932; 6 days reached G1 or higher.