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Geomagnetic activity in September 1993
Mean Ap14.9No. 366 of 1138
G1+ days10
G3+ days1
Max Ap9113 Sep 1993
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Sep 1993 | 6- | 36 | G2 |
| 4 Sep 1993 | 5- | 25 | G1 |
| 12 Sep 1993 | 6- | 16 | G2 |
| 13 Sep 1993 | 8- | 91 | G4 |
| 14 Sep 1993 | 5o | 28 | G1 |
| 20 Sep 1993 | 5o | 21 | G1 |
| 21 Sep 1993 | 5+ | 14 | G1 |
| 23 Sep 1993 | 5o | 12 | G1 |
| 29 Sep 1993 | 5o | 24 | G1 |
| 30 Sep 1993 | 5o | 18 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| September 1992 | 25.1 | 14 | 4 |
| September 1993 | 14.9 | 10 | 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 September 1993, No. 366 of 1138 months since 1932; 10 days reached G1 or higher.