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Geomagnetic activity in April 1986
Mean Ap7.9No. 945 of 1138
G1+ days1
G3+ days0
Max Ap1910 Apr 1986
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 10 Apr 1986 | 5- | 19 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 1985 | 21.1 | 12 | 4 |
| April 1986 | 7.9 | 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.
About this page
Mean Ap 7.9 in April 1986, No. 945 of 1138 months since 1932; 1 days reached G1 or higher.