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Geomagnetic activity in February 1971
Mean Ap12.0No. 586 of 1138
G1+ days5
G3+ days0
Max Ap4325 Feb 1971
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 15 Feb 1971 | 5+ | 29 | G1 |
| 16 Feb 1971 | 6o | 28 | G2 |
| 24 Feb 1971 | 5+ | 13 | G1 |
| 25 Feb 1971 | 6o | 43 | G2 |
| 26 Feb 1971 | 6+ | 31 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1970 | 6.8 | 1 | 0 |
| February 1971 | 12.0 | 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 12.0 in February 1971, No. 586 of 1138 months since 1932; 5 days reached G1 or higher.