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Geomagnetic activity in October 1966
Mean Ap10.5No. 698 of 1138
G1+ days6
G3+ days0
Max Ap365 Oct 1966
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Oct 1966 | 6o | 26 | G2 |
| 5 Oct 1966 | 5+ | 36 | G1 |
| 6 Oct 1966 | 5+ | 22 | G1 |
| 16 Oct 1966 | 6o | 33 | G2 |
| 30 Oct 1966 | 5- | 13 | G1 |
| 31 Oct 1966 | 5- | 34 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| October 1965 | 6.7 | 1 | 0 |
| October 1966 | 10.5 | 6 | 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.
← September 1966November 1966 →
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Mean Ap 10.5 in October 1966, No. 698 of 1138 months since 1932; 6 days reached G1 or higher.