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Geomagnetic activity in February 1948
Mean Ap12.8No. 522 of 1138
G1+ days5
G3+ days0
Max Ap343 Feb 1948
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Feb 1948 | 6- | 34 | G2 |
| 15 Feb 1948 | 5o | 27 | G1 |
| 16 Feb 1948 | 5+ | 27 | G1 |
| 23 Feb 1948 | 5o | 26 | G1 |
| 28 Feb 1948 | 5- | 17 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1947 | 11.8 | 6 | 0 |
| February 1948 | 12.8 | 5 | 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.
About this page
Mean Ap 12.8 in February 1948, No. 522 of 1138 months since 1932; 5 days reached G1 or higher.