The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2000 - April, 2000

Statistics of sunspot activity

April, 2000

Visual indices of solar activity by author's observations

Date	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	Average	%
W	305		235			152	140	162	221	157								149	151	178	203	254		265	267	228	198	219	169		202.94	100
Wn	124		98			45	49	49	54	33								87	102	101	120	159		152	153	106	96	83	55		92.56	45.61
Ws	181		137			107	91	113	167	124								62	49	77	83	95		113	114	122	102	136	114		110.39	54.39
n	15		12			9	9	8	13	9								9	9	11	11	12		10	8	8	8	9	8		9.89	100
A	0		0			0	1	0	0	0								0	0	1	0	0		1	1	0	0	0	0		0.22	2.25
B	0		0			0	1	1	3	1								0	0	0	0	0		0	0	1	2	1	1		0.61	6.18
C	3		1			3	3	4	5	0								3	1	1	0	1		1	0	1	2	1	1		1.72	17.42
D	7		9			3	0	1	1	1								2	2	2	4	5		3	3	2	0	2	2		2.72	27.53
E	1		0			0	1	1	1	1								1	0	2	2	1		3	2	2	2	1	1		1.22	12.36
F	0		0			0	0	0	0	0								0	0	0	0	0		0	1	0	0	0	0		0.06	0.56
G	1		0			0	0	0	0	0								1	2	2	2	3		1	1	2	2	3	1		1.17	11.80
H	0		1			3	1	0	1	5								2	3	0	0	0		0	0	0	0	0	1		0.94	9.55
I	3		1			0	2	1	2	1								0	1	3	3	2		1	0	0	0	1	1		1.22	12.36
x	0		0			0	2	1	3	1								0	0	1	0	0		1	1	1	2	1	1		0.83	8.43
r	3		1			0	0	1	3	1								2	2	0	1	1		2	0	0	0	1	0		1.00	10.11
s	0		0			1	3	2	3	4								1	2	2	2	1		0	1	1	1	1	0		1.39	14.05
a	10		9			7	4	4	4	2								5	5	6	6	8		5	4	4	3	4	5		5.28	53.37
h	0		0			0	0	0	0	0								0	0	0	0	0		0	0	0	0	0	0		0.00	0.00
k	2		2			1	0	0	0	1								1	0	2	2	2		2	2	2	2	2	2		1.39	14.05
x	3		2			3	4	1	3	6								2	4	4	3	2		2	1	0	0	1	2		2.39	24.16
o	6		4			3	4	5	9	2								4	4	2	4	7		2	3	6	5	5	4		4.39	44.38
i	5		5			3	1	2	1	1								3	1	5	4	2		5	3	1	2	2	1		2.61	26.40
c	1		1			0	0	0	0	0								0	0	0	0	1		1	1	1	1	1	1		0.50	5.06
CV	282		263			136	80	90	112	128								141	114	215	240	261		222	214	198	171	206	163		179.78	100
CVn	122		116			23	35	45	48	24								76	80	118	144	147		117	111	113	104	114	60		88.72	49.35
CVs	160		147			113	45	45	64	104								65	34	97	96	114		105	103	85	67	92	103		91.06	50.65
gr	14		11			9	6	7	13	4								9	7	8	10	11		9	8	8	8	8	7		8.72	89.20
grfp	103		95			48	30	45	51	36								37	41	47	74	101		125	145	109	83	102	74		74.78	72.60
grf	51		19			14	17	36	40	26								22	18	18	18	32		39	42	39	35	27	15		28.22	27.40
efp	1		1			0	2	1	0	5								0	2	3	1	1		1	0	0	0	0	0		1.00	10.23
ef	0		0			0	1	0	0	0								0	0	0	0	0		0	0	0	0	0	0		0.06	0.57
Cond	5		4			3	2	2	2-1	3								2	3	3	2	4		3	1	3	1	2-3	3		2.67	46.67