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Geomagnetic activity in December 1972
Mean Ap10.1No. 748 of 1138
G1+ days5
G3+ days1
Max Ap3316 Dec 1972
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 13 Dec 1972 | 5+ | 30 | G1 |
| 15 Dec 1972 | 7- | 29 | G3 |
| 16 Dec 1972 | 5o | 33 | G1 |
| 23 Dec 1972 | 5o | 30 | G1 |
| 24 Dec 1972 | 5- | 13 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| December 1971 | 10.0 | 2 | 1 |
| December 1972 | 10.1 | 5 | 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 10.1 in December 1972, No. 748 of 1138 months since 1932; 5 days reached G1 or higher.