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Geomagnetic activity in December 1950
Mean Ap15.5No. 327 of 1138
G1+ days9
G3+ days0
Max Ap3913 Dec 1950
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 12 Dec 1950 | 5o | 22 | G1 |
| 13 Dec 1950 | 5+ | 39 | G1 |
| 14 Dec 1950 | 6o | 37 | G2 |
| 20 Dec 1950 | 5o | 13 | G1 |
| 22 Dec 1950 | 6+ | 29 | G2 |
| 23 Dec 1950 | 6- | 35 | G2 |
| 24 Dec 1950 | 6+ | 36 | G2 |
| 25 Dec 1950 | 5- | 32 | G1 |
| 26 Dec 1950 | 5o | 29 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| December 1949 | 8.7 | 1 | 0 |
| December 1950 | 15.5 | 9 | 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 15.5 in December 1950, No. 327 of 1138 months since 1932; 9 days reached G1 or higher.