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Geomagnetic activity in December 1980
Mean Ap12.9No. 510 of 1138
G1+ days4
G3+ days1
Max Ap7919 Dec 1980
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Dec 1980 | 5o | 19 | G1 |
| 12 Dec 1980 | 5- | 16 | G1 |
| 19 Dec 1980 | 8- | 79 | G4 |
| 21 Dec 1980 | 5- | 26 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| December 1979 | 9.0 | 2 | 0 |
| December 1980 | 12.9 | 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 12.9 in December 1980, No. 510 of 1138 months since 1932; 4 days reached G1 or higher.