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Geomagnetic storm on 28 Mar 1947 (G3)
Max Kp7-G3
Ap75No. 10 in 1947
Consecutive G1+ days5
Ap rank350since 1932
Kp by 3-hour slot (UTC)
6+
7-
6+
5-
6o
6o
5o
5+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 25 Mar 1947 | 4- | 13 | – |
| 26 Mar 1947 | 5- | 26 | G1 |
| 27 Mar 1947 | 5- | 27 | G1 |
| 28 Mar 1947 | 7- | 75 | G3 |
| 29 Mar 1947 | 5- | 17 | G1 |
| 30 Mar 1947 | 6- | 35 | G2 |
| 31 Mar 1947 | 4+ | 21 | – |
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 75: No. 350 of 34,615 days since 1932 by Ap.