Aurora & Space WeatherHome › Geomagnetic history › 1954
Geomagnetic storm on 20 Sep 1954 (G3)
Max Kp7-G3
Ap45No. 2 in 1954
Consecutive G1+ days1
Ap rank1,186since 1932
Kp by 3-hour slot (UTC)
4-
4o
4o
3o
5-
6o
7-
5-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 17 Sep 1954 | 4o | 10 | – |
| 18 Sep 1954 | 4o | 14 | – |
| 19 Sep 1954 | 3o | 9 | – |
| 20 Sep 1954 | 7- | 45 | G3 |
| 21 Sep 1954 | 4+ | 26 | – |
| 22 Sep 1954 | 4- | 11 | – |
| 23 Sep 1954 | 3+ | 8 | – |
Highest-Ap days of 1954
56
45
45
44
42
40
36
36
35
32
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
Max Kp 7-, Ap 45: No. 1,186 of 34,615 days since 1932 by Ap.