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Geomagnetic activity in September 1953
Mean Ap21.1No. 125 of 1138
G1+ days15
G3+ days3
Max Ap8019 Sep 1953
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Sep 1953 | 5- | 21 | G1 |
| 3 Sep 1953 | 7+ | 40 | G3 |
| 4 Sep 1953 | 7+ | 61 | G3 |
| 5 Sep 1953 | 6o | 23 | G2 |
| 6 Sep 1953 | 5o | 14 | G1 |
| 11 Sep 1953 | 6- | 17 | G2 |
| 15 Sep 1953 | 5o | 19 | G1 |
| 18 Sep 1953 | 6- | 18 | G2 |
| 19 Sep 1953 | 7- | 80 | G3 |
| 20 Sep 1953 | 5+ | 37 | G1 |
| 21 Sep 1953 | 5o | 28 | G1 |
| 22 Sep 1953 | 6- | 33 | G2 |
| 23 Sep 1953 | 5+ | 46 | G1 |
| 24 Sep 1953 | 5+ | 31 | G1 |
| 27 Sep 1953 | 5- | 20 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| September 1952 | 22.9 | 16 | 2 |
| September 1953 | 21.1 | 15 | 3 |
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 21.1 in September 1953, No. 125 of 1138 months since 1932; 15 days reached G1 or higher.