Home > Observation data > Monthly overview > Monthly overview (Sep 2004)

Monthly overview (Sep 2004)

The monthly mean values of the geomagnetic field components at Kakioka are D: -7��3.5��, H: 29987nT, Z: 35374nT and F: 46374nT for September 2004.

Monthly average of the K-index daily sum is 11.6. indicates a slightly low level of geomagnetic activity during the month.

Notable geomagnetic events include 0 magnetic storms, 2 si, 3 bay, 1 sfe, 4 pi and 0 pc.

The international 5 quietest days are the 3,4,10,11,12^th.

The international 5 most disturbed days are the 6,14,16,17,22^th.

Date	K-index daily sum	Geomagnetic activity	Geomagnetic phenomena	International 5 quietest days	International 5 quietest days	geomagnetic 1-minute value plot
1	10	calm				plot
2	09	calm				plot
3	05	calm		��		plot
4	07	calm		��		plot
5	16	moderately calm				plot
6	19	moderately disturbed	pi		��	plot
7	17	moderately disturbed				plot
8	11	moderately calm				plot
9	05	calm				plot
10	03	extremely calm		��		plot
11	02	extremely calm		��		plot
12	03	extremely calm	sfe			plot
13	08	calm	si			plot
14	29	disturbed	bay		��	plot
15	20	moderately disturbed				plot
16	23	disturbed	bay		��	plot
17	20	moderately disturbed			��	plot
18	14	moderately calm				plot
19	09	calm				plot
20	18	moderately disturbed				plot
21	14	moderately calm				plot
22	21	moderately disturbed	si bay			plot
23	15	moderately calm				plot
24	11	moderately calm				plot
25	06	calm	pi			plot
26	01	extremely calm				plot
27	10	calm	pi			plot
28	12	moderately calm				plot
29	09	calm	pi			plot
30	02	extremely calm				plot

*) Plot diagram opens in a separate window.