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Geomagnetic activity in February 1986
Mean Ap27.3No. 39 of 1138
G1+ days10
G3+ days3
Max Ap2028 Feb 1986
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 7 Feb 1986 | 8- | 82 | G4 |
| 8 Feb 1986 | 9o | 202 | G5 |
| 9 Feb 1986 | 9- | 100 | G5 |
| 11 Feb 1986 | 5- | 20 | G1 |
| 14 Feb 1986 | 5- | 19 | G1 |
| 21 Feb 1986 | 5+ | 26 | G1 |
| 22 Feb 1986 | 5- | 30 | G1 |
| 23 Feb 1986 | 5+ | 35 | G1 |
| 26 Feb 1986 | 6- | 26 | G2 |
| 28 Feb 1986 | 5o | 25 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1985 | 15.2 | 7 | 2 |
| February 1986 | 27.3 | 10 | 3 |
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 27.3 in February 1986, No. 39 of 1138 months since 1932; 10 days reached G1 or higher.