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Geomagnetic activity in November 1947
Mean Ap14.1No. 422 of 1138
G1+ days5
G3+ days3
Max Ap629 Nov 1947
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 9 Nov 1947 | 7o | 62 | G3 |
| 10 Nov 1947 | 7- | 48 | G3 |
| 11 Nov 1947 | 7- | 53 | G3 |
| 12 Nov 1947 | 5+ | 22 | G1 |
| 24 Nov 1947 | 5+ | 13 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| November 1946 | 12.5 | 8 | 0 |
| November 1947 | 14.1 | 5 | 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 14.1 in November 1947, No. 422 of 1138 months since 1932; 5 days reached G1 or higher.