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Monthly overview (Fab 1999)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7°-2.7′°, H: 30030nT, Z: 35355nT and F: 46387nT for February 1999.

Monthly average of the K-index daily sum is 15.5. indicates a slightly high level of geomagnetic activity during the month.

Notable geomagnetic events include 2 magnetic storms, 2 si, 10 bay, 0 sfe, 4 pi and 0 pc.

The international 5 quietest days are the 1,2,9,20,26^th.

The international 5 most disturbed days are the 11,12,17,18,19^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	01	extremely calm		○		plot
2	03	extremely calm		○		plot
3	14	moderately calm				plot
4	15	moderately calm				plot
5	18	moderately disturbed				plot
6	19	moderately disturbed	bay			plot
7	18	moderately disturbed				plot
8	14	moderately calm				plot
9	07	calm		○		plot
10	07	calm	pi			plot
11	25	disturbed			○	plot
12	28	disturbed	bay		○	plot
13	13	moderately calm				plot
14	20	moderately disturbed				plot
15	19	moderately disturbed				plot
16	11	moderately calm				plot
17	23	disturbed	storm si pi		○	plot
18	41	disturbed	storm si pi		○	plot
19	29	disturbed	bay pi		○	plot
20	08	calm		○		plot
21	07	calm				plot
22	15	moderately calm				plot
23	18	moderately disturbed				plot
24	17	moderately disturbed				plot
25	12	moderately calm				plot
26	02	extremely calm		○		plot
27	08	calm				plot
28	21	moderately disturbed	bay			plot

*) Plot diagram opens in a separate window.