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Geomagnetic storm on 20 Oct 1984 (G3)

Max Kp7-G3

Ap63No. 8 in 1984

Consecutive G1+ days9

Ap rank531since 1932

Kp by 3-hour slot (UTC)

00–036-

03–066-

06–095+

09–125+

12–155+

15–185+

18–217-

21–244+

The days around it

Date	Max Kp	Ap	Level
17 Oct 1984	2-	3	–
18 Oct 1984	7-	43	G3
19 Oct 1984	7-	75	G3
20 Oct 1984	7-	63	G3
21 Oct 1984	6o	47	G2
22 Oct 1984	6-	46	G2
23 Oct 1984	5-	27	G1

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.

← 19 Oct 1984 15 Nov 1984 →

About this page

Max Kp 7-, Ap 63: No. 531 of 34,615 days since 1932 by Ap.