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Geomagnetic storm on 26 May 1958 (G3)
Max Kp7-G3
Ap39No. 33 in 1958
Consecutive G1+ days4
Ap rank1,661since 1932
Kp by 3-hour slot (UTC)
4o
3+
3o
4+
7-
6-
3+
4o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 23 May 1958 | 2+ | 4 | – |
| 24 May 1958 | 1+ | 2 | – |
| 25 May 1958 | 4+ | 10 | – |
| 26 May 1958 | 7- | 39 | G3 |
| 27 May 1958 | 5o | 24 | G1 |
| 28 May 1958 | 5- | 18 | G1 |
| 29 May 1958 | 6+ | 52 | G2 |
Highest-Ap days of 1958
200
199
131
103
89
85
82
82
77
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 39: No. 1,661 of 34,615 days since 1932 by Ap.