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Geomagnetic activity in October 1972
Mean Ap12.2No. 570 of 1138
G1+ days6
G3+ days1
Max Ap3419 Oct 1972
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 11 Oct 1972 | 5- | 19 | G1 |
| 12 Oct 1972 | 5- | 21 | G1 |
| 13 Oct 1972 | 5- | 21 | G1 |
| 19 Oct 1972 | 6- | 34 | G2 |
| 29 Oct 1972 | 5o | 21 | G1 |
| 31 Oct 1972 | 7- | 29 | G3 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| October 1971 | 11.9 | 8 | 0 |
| October 1972 | 12.2 | 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.
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Mean Ap 12.2 in October 1972, No. 570 of 1138 months since 1932; 6 days reached G1 or higher.