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Geomagnetic storm on 25 Feb 1959 (G3)
Max Kp7+G3
Ap69No. 16 in 1959
Consecutive G1+ days6
Ap rank428since 1932
Kp by 3-hour slot (UTC)
3+
5-
6+
6-
6+
7+
5+
4+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 22 Feb 1959 | 4+ | 17 | – |
| 23 Feb 1959 | 4+ | 15 | – |
| 24 Feb 1959 | 2- | 4 | – |
| 25 Feb 1959 | 7+ | 69 | G3 |
| 26 Feb 1959 | 6+ | 48 | G2 |
| 27 Feb 1959 | 6- | 30 | G2 |
| 28 Feb 1959 | 6- | 44 | G2 |
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 69: No. 428 of 34,615 days since 1932 by Ap.