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Geomagnetic storm on 21 Jan 1957 (G5)

Max Kp9-G5

Ap82No. 13 in 1957

Consecutive G1+ days5

Ap rank282since 1932

Kp by 3-hour slot (UTC)

00–032-

03–063+

06–094-

09–124-

12–155-

15–186-

18–218-

21–249-

The days around it

Date	Max Kp	Ap	Level
18 Jan 1957	1+	3	–
19 Jan 1957	3+	7	–
20 Jan 1957	2-	4	–
21 Jan 1957	9-	82	G5
22 Jan 1957	8+	70	G4
23 Jan 1957	5o	26	G1
24 Jan 1957	5+	27	G1

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.

← 25 Nov 1956 22 Jan 1957 →

About this page

Max Kp 9-, Ap 82: No. 282 of 34,615 days since 1932 by Ap.