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Geomagnetic activity in October 1948
Mean Ap27.1No. 42 of 1138
G1+ days16
G3+ days5
Max Ap9419 Oct 1948
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Oct 1948 | 6+ | 46 | G2 |
| 2 Oct 1948 | 6+ | 46 | G2 |
| 3 Oct 1948 | 6- | 25 | G2 |
| 5 Oct 1948 | 5o | 16 | G1 |
| 10 Oct 1948 | 6+ | 28 | G2 |
| 14 Oct 1948 | 7o | 35 | G3 |
| 15 Oct 1948 | 6- | 51 | G2 |
| 17 Oct 1948 | 8+ | 35 | G4 |
| 18 Oct 1948 | 8+ | 86 | G4 |
| 19 Oct 1948 | 8- | 94 | G4 |
| 20 Oct 1948 | 5o | 21 | G1 |
| 21 Oct 1948 | 7- | 67 | G3 |
| 22 Oct 1948 | 6- | 34 | G2 |
| 23 Oct 1948 | 5+ | 32 | G1 |
| 24 Oct 1948 | 5+ | 30 | G1 |
| 27 Oct 1948 | 6o | 29 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| October 1947 | 23.1 | 14 | 2 |
| October 1948 | 27.1 | 16 | 5 |
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 1948November 1948 →
About this page
Mean Ap 27.1 in October 1948, No. 42 of 1138 months since 1932; 16 days reached G1 or higher.