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Monthly overview (Jan 1999)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-2.8′°, H: 30031nT, Z: 35355nT and F: 46388nT for January 1999.

Monthly average of the K-index daily sum is 15.2. indicates a moderate level of geomagnetic activity during the month.

Notable geomagnetic events include 1 magnetic storms, 2 si, 6 bay, 0 sfe, 0 pi and 0 pc.

The international 5 quietest days are the 3,19,26,30,31^th.

The international 5 most disturbed days are the 8,13,14,15,23^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	15	moderately calm				plot
2	17	moderately disturbed	bay			plot
3	07	calm		○		plot
4	14	moderately calm				plot
5	16	moderately calm				plot
6	17	moderately disturbed	si			plot
7	15	moderately calm				plot
8	22	moderately disturbed			○	plot
9	14	moderately calm				plot
10	09	calm				plot
11	13	moderately calm				plot
12	14	moderately calm				plot
13	27	disturbed	storm si bay		○	plot
14	29	disturbed			○	plot
15	24	disturbed			○	plot
16	11	moderately calm				plot
17	10	calm				plot
18	08	calm				plot
19	08	calm		○		plot
20	16	moderately calm				plot
21	12	moderately calm				plot
22	18	moderately disturbed				plot
23	25	disturbed			○	plot
24	22	moderately disturbed	bay			plot
25	14	moderately calm				plot
26	08	calm		○		plot
27	21	moderately disturbed				plot
28	15	moderately calm				plot
29	14	moderately calm				plot
30	10	calm		○		plot
31	06	calm		○		plot

*) Plot diagram opens in a separate window.