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Geomagnetic storm on 4 Sep 1959 (G3)
Max Kp7+G3
Ap103No. 8 in 1959
Consecutive G1+ days5
Ap rank152since 1932
Kp by 3-hour slot (UTC)
7-
7+
7o
6+
6o
7o
5+
6-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Sep 1959 | 4+ | 20 | – |
| 2 Sep 1959 | 5+ | 34 | G1 |
| 3 Sep 1959 | 8- | 39 | G4 |
| 4 Sep 1959 | 7+ | 103 | G3 |
| 5 Sep 1959 | 6- | 34 | G2 |
| 6 Sep 1959 | 6- | 18 | G2 |
| 7 Sep 1959 | 3+ | 7 | – |
Highest-Ap days of 1959
236
178
130
119
114
110
108
103
98
87
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 103: No. 152 of 34,615 days since 1932 by Ap.