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Geomagnetic activity in February 1946
Mean Ap22.2No. 103 of 1138
G1+ days9
G3+ days2
Max Ap1277 Feb 1946
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 7 Feb 1946 | 8+ | 127 | G4 |
| 8 Feb 1946 | 9- | 118 | G5 |
| 10 Feb 1946 | 5+ | 20 | G1 |
| 14 Feb 1946 | 6o | 33 | G2 |
| 15 Feb 1946 | 5+ | 18 | G1 |
| 19 Feb 1946 | 5o | 27 | G1 |
| 20 Feb 1946 | 6o | 21 | G2 |
| 21 Feb 1946 | 6o | 51 | G2 |
| 23 Feb 1946 | 5- | 21 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1945 | 10.1 | 4 | 0 |
| February 1946 | 22.2 | 9 | 2 |
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 22.2 in February 1946, No. 103 of 1138 months since 1932; 9 days reached G1 or higher.