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Geomagnetic storm on 28 Aug 1978 (G4)

Max Kp8+G4

Ap124No. 1 in 1978

Consecutive G1+ days7

Ap rank95since 1932

Kp by 3-hour slot (UTC)

00–034+

03–067+

06–098+

09–128-

12–158o

15–186+

18–215-

21–245o

The days around it

Date	Max Kp	Ap	Level
25 Aug 1978	3o	9	–
26 Aug 1978	2-	4	–
27 Aug 1978	5-	29	G1
28 Aug 1978	8+	124	G4
29 Aug 1978	6-	40	G2
30 Aug 1978	5+	31	G1
31 Aug 1978	6+	45	G2

Highest-Ap days of 1978

28 Aug 1978124

29 Sep 1978109

4 May 197896

2 May 197894

4 Jan 197889

1 May 197888

9 May 197885

3 May 197883

2 Jun 197882

4 Jul 197880

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.

← 5 Jul 1978 29 Sep 1978 →

About this page

Max Kp 8+, Ap 124: No. 95 of 34,615 days since 1932 by Ap.