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Geomagnetic activity in February 1979
Mean Ap14.9No. 367 of 1138
G1+ days4
G3+ days1
Max Ap5921 Feb 1979
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 21 Feb 1979 | 7- | 59 | G3 |
| 22 Feb 1979 | 5o | 33 | G1 |
| 23 Feb 1979 | 5o | 31 | G1 |
| 27 Feb 1979 | 6- | 24 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1978 | 15.9 | 6 | 1 |
| February 1979 | 14.9 | 4 | 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.
About this page
Mean Ap 14.9 in February 1979, No. 367 of 1138 months since 1932; 4 days reached G1 or higher.