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Geomagnetic storm on 19 Apr 1957 (G3)
Max Kp7-G3
Ap60No. 20 in 1957
Consecutive G1+ days3
Ap rank597since 1932
Kp by 3-hour slot (UTC)
6+
6+
7-
4+
5-
5o
5-
4o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 16 Apr 1957 | 4+ | 17 | – |
| 17 Apr 1957 | 8- | 55 | G4 |
| 18 Apr 1957 | 6+ | 42 | G2 |
| 19 Apr 1957 | 7- | 60 | G3 |
| 20 Apr 1957 | 4o | 14 | – |
| 21 Apr 1957 | 4o | 17 | – |
| 22 Apr 1957 | 2o | 4 | – |
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 7-, Ap 60: No. 597 of 34,615 days since 1932 by Ap.