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Geomagnetic storm on 3 Sep 1947 (G3)
Max Kp7+G3
Ap84No. 6 in 1947
Consecutive G1+ days2
Ap rank260since 1932
Kp by 3-hour slot (UTC)
4o
4o
7+
7+
6o
6o
6o
6-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 31 Aug 1947 | 4o | 14 | – |
| 1 Sep 1947 | 3+ | 10 | – |
| 2 Sep 1947 | 4+ | 10 | – |
| 3 Sep 1947 | 7+ | 84 | G3 |
| 4 Sep 1947 | 5o | 35 | G1 |
| 5 Sep 1947 | 4o | 18 | – |
| 6 Sep 1947 | 5- | 22 | G1 |
Highest-Ap days of 1947
128
100
100
90
90
84
82
81
80
75
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 84: No. 260 of 34,615 days since 1932 by Ap.