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Geomagnetic storm on 29 Mar 1957 (G4)
Max Kp8-G4
Ap77No. 14 in 1957
Consecutive G1+ days4
Ap rank334since 1932
Kp by 3-hour slot (UTC)
3+
5+
4+
4o
7o
8-
6+
6o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 26 Mar 1957 | 4- | 13 | – |
| 27 Mar 1957 | 7o | 44 | G3 |
| 28 Mar 1957 | 7o | 58 | G3 |
| 29 Mar 1957 | 8- | 77 | G4 |
| 30 Mar 1957 | 6- | 21 | G2 |
| 31 Mar 1957 | 4+ | 20 | – |
| 1 Apr 1957 | 4+ | 23 | – |
Highest-Ap days of 1957
164
160
150
145
139
135
132
112
104
102
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 8-, Ap 77: No. 334 of 34,615 days since 1932 by Ap.