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Geomagnetic storm on 28 Oct 1961 (G5)
Max Kp9-G5
Ap128No. 1 in 1961
Consecutive G1+ days4
Ap rank87since 1932
Kp by 3-hour slot (UTC)
2+
2+
5o
6+
8o
8o
9-
7+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 25 Oct 1961 | 3o | 8 | – |
| 26 Oct 1961 | 5+ | 31 | G1 |
| 27 Oct 1961 | 5+ | 30 | G1 |
| 28 Oct 1961 | 9- | 128 | G5 |
| 29 Oct 1961 | 6o | 32 | G2 |
| 30 Oct 1961 | 3o | 6 | – |
| 31 Oct 1961 | 3+ | 5 | – |
Highest-Ap days of 1961
128
114
114
102
98
93
66
61
58
58
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 9-, Ap 128: No. 87 of 34,615 days since 1932 by Ap.