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Geomagnetic storm on 21 Sep 1959 (G3)

Max Kp7oG3

Ap86No. 11 in 1959

Consecutive G1+ days12

Ap rank248since 1932

Kp by 3-hour slot (UTC)

00–036-

03–067-

06–097o

09–125-

12–156o

15–187-

18–216+

21–245+

The days around it

Date	Max Kp	Ap	Level
18 Sep 1959	5o	27	G1
19 Sep 1959	6o	36	G2
20 Sep 1959	6+	61	G2
21 Sep 1959	7o	86	G3
22 Sep 1959	7o	73	G3
23 Sep 1959	5o	24	G1
24 Sep 1959	5o	24	G1

Highest-Ap days of 1959

15 Jul 1959236

27 Mar 1959178

16 Aug 1959130

18 Jul 1959119

17 Aug 1959114

17 Jul 1959110

12 May 1959108

4 Sep 1959103

10 Apr 195998

28 Mar 195987

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.

← 4 Sep 1959 22 Sep 1959 →

About this page

Max Kp 7o, Ap 86: No. 248 of 34,615 days since 1932 by Ap.