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Monthly overview (Jun 1990)

The monthly mean values of the geomagnetic field components at Kakioka are D: -6��50��, H: 30144nT, Z: 34951nT and F: 46155nT for June 1990.

Monthly average of the K-index daily sum is 15.3. indicates a moderate level of geomagnetic activity during the month.

Notable geomagnetic events include 2 magnetic storms, 3 si, 1 bay, 2 sfe, 0 pi and 0 pc.

The international 5 quietest days are the 5,16,17,20,30^th.

The international 5 most disturbed days are the 7,9,12,13,14^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	14	moderately calm				plot
2	07	calm				plot
3	11	moderately calm				plot
4	08	calm				plot
5	08	calm		��		plot
6	21	moderately disturbed				plot
7	21	moderately disturbed			��	plot
8	20	moderately disturbed				plot
9	28	disturbed	bay		��	plot
10	20	moderately disturbed	sfe			plot
11	15	moderately calm				plot
12	34	disturbed	storm si sfe		��	plot
13	37	disturbed	si		��	plot
14	34	disturbed	storm			plot
15	18	moderately disturbed				plot
16	09	calm		��		plot
17	04	calm		��		plot
18	14	moderately calm				plot
19	07	calm				plot
20	04	calm		��		plot
21	09	calm				plot
22	09	calm				plot
23	11	moderately calm				plot
24	16	moderately calm				plot
25	15	moderately calm				plot
26	13	moderately calm				plot
27	18	moderately disturbed				plot
28	14	moderately calm				plot
29	14	moderately calm				plot
30	06	calm				plot

*) Plot diagram opens in a separate window.