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Geomagnetic activity in April 1969
Mean Ap14.1No. 417 of 1138
G1+ days7
G3+ days1
Max Ap6028 Apr 1969
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Apr 1969 | 6- | 24 | G2 |
| 3 Apr 1969 | 5+ | 17 | G1 |
| 7 Apr 1969 | 5- | 20 | G1 |
| 14 Apr 1969 | 5o | 16 | G1 |
| 18 Apr 1969 | 5- | 15 | G1 |
| 28 Apr 1969 | 7+ | 60 | G3 |
| 30 Apr 1969 | 5o | 27 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 1968 | 13.1 | 6 | 1 |
| April 1969 | 14.1 | 7 | 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 14.1 in April 1969, No. 417 of 1138 months since 1932; 7 days reached G1 or higher.