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Geomagnetic storm on 4 Sep 1957 (G5)

Max Kp9oG5

Ap145No. 4 in 1957

Consecutive G1+ days9

Ap rank52since 1932

Kp by 3-hour slot (UTC)

00–034-

03–065-

06–092+

09–123-

12–158+

15–189o

18–218o

21–248+

The days around it

Date	Max Kp	Ap	Level
1 Sep 1957	6-	28	G2
2 Sep 1957	8-	102	G4
3 Sep 1957	9-	135	G5
4 Sep 1957	9o	145	G5
5 Sep 1957	9-	112	G5
6 Sep 1957	6-	36	G2
7 Sep 1957	4-	11	–

Highest-Ap days of 1957

23 Sep 1957164

13 Sep 1957160

30 Jun 1957150

4 Sep 1957145

29 Sep 1957139

3 Sep 1957135

2 Mar 1957132

5 Sep 1957112

22 Sep 1957104

2 Sep 1957102

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.

← 3 Sep 1957 5 Sep 1957 →

About this page

Max Kp 9o, Ap 145: No. 52 of 34,615 days since 1932 by Ap.