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Geomagnetic storm on 20 Apr 2002 (G3)

Max Kp7+G3

Ap70No. 2 in 2002

Consecutive G1+ days4

Ap rank422since 1932

Kp by 3-hour slot (UTC)

00–037o

03–067+

06–096-

09–124+

12–155o

15–186o

18–215-

21–243-

The days around it

Date	Max Kp	Ap	Level
17 Apr 2002	7+	62	G3
18 Apr 2002	7o	63	G3
19 Apr 2002	7-	62	G3
20 Apr 2002	7+	70	G3
21 Apr 2002	2+	5	–
22 Apr 2002	4o	11	–
23 Apr 2002	6o	27	G2

Highest-Ap days of 2002

23 May 200278

20 Apr 200270

1 Oct 200267

4 Oct 200264

18 Apr 200263

24 Oct 200263

17 Apr 200262

19 Apr 200262

7 Sep 200257

2 Oct 200253

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 Apr 2002 11 May 2002 →

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Max Kp 7+, Ap 70: No. 422 of 34,615 days since 1932 by Ap.