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Geomagnetic storm on 15 Mar 1947 (G3)

Max Kp7+G3

Ap74No. 11 in 1947

Consecutive G1+ days4

Ap rank361since 1932

Kp by 3-hour slot (UTC)

00–033o

03–064-

06–096+

09–127+

12–157-

15–187+

18–214o

21–243+

The days around it

Date	Max Kp	Ap	Level
12 Mar 1947	5-	18	G1
13 Mar 1947	4+	16	–
14 Mar 1947	5+	25	G1
15 Mar 1947	7+	74	G3
16 Mar 1947	5-	20	G1
17 Mar 1947	5+	24	G1
18 Mar 1947	4-	14	–

Highest-Ap days of 1947

3 Mar 1947128

17 Apr 1947100

25 Sep 1947100

8 Mar 194790

24 Sep 194790

3 Sep 194784

4 Mar 194782

2 Mar 194781

18 Jul 194780

28 Mar 194775

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.

← 9 Mar 1947 28 Mar 1947 →

About this page

Max Kp 7+, Ap 74: No. 361 of 34,615 days since 1932 by Ap.