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Geomagnetic storm on 17 Aug 1959 (G4)

Max Kp8+G4

Ap114No. 5 in 1959

Consecutive G1+ days10

Ap rank118since 1932

Kp by 3-hour slot (UTC)

00–038-

03–068+

06–097-

09–126+

12–155+

15–187o

18–215o

21–245+

The days around it

Date	Max Kp	Ap	Level
14 Aug 1959	2o	6	–
15 Aug 1959	6-	27	G2
16 Aug 1959	8+	130	G4
17 Aug 1959	8+	114	G4
18 Aug 1959	5+	28	G1
19 Aug 1959	5-	21	G1
20 Aug 1959	6-	38	G2

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.

← 16 Aug 1959 3 Sep 1959 →

About this page

Max Kp 8+, Ap 114: No. 118 of 34,615 days since 1932 by Ap.