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Geomagnetic storm on 4 Sep 1984 (G4)

Max Kp8-G4

Ap59No. 11 in 1984

Consecutive G1+ days2

Ap rank638since 1932

Kp by 3-hour slot (UTC)

00–033-

03–063-

06–095+

09–125o

12–157o

15–188-

18–213+

21–243-

The days around it

Date	Max Kp	Ap	Level
1 Sep 1984	3+	11	–
2 Sep 1984	4-	12	–
3 Sep 1984	4+	12	–
4 Sep 1984	8-	59	G4
5 Sep 1984	7o	63	G3
6 Sep 1984	3+	12	–
7 Sep 1984	2+	6	–

Highest-Ap days of 1984

23 Sep 1984112

16 Nov 1984112

26 Apr 1984103

4 Apr 198484

1 Aug 198475

19 Oct 198475

5 Sep 198463

20 Oct 198463

13 Jul 198462

28 Mar 198460

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.

← 1 Aug 1984 5 Sep 1984 →

About this page

Max Kp 8-, Ap 59: No. 638 of 34,615 days since 1932 by Ap.