The Sunspot Observer - Average annual indices of solar activity - Solar activity in 1998 - May, 1998

Statistics of sunspot activity

May, 1998

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	31	Average	%
W		100			105	78		72	103		64			100		125	85	85	96	81	16	32		38		51	34		43		60	72.00	100
Wn		45			75	50		34	25		0			35		40	30	40	33	28	16	21		27		40	34		18		19	32.11	44.59
Ws		55			30	28		38	78		64			65		85	55	45	63	53	0	11		11		11	0		25		41	39.89	55.41
n		3			3	3		3	5		4			3		3	3	3	5	5	1	2		2		3	2		3		3	3.11	100
A		0			0	0		0	1		1			0		0	0	0	1	1	0	0		0		1	0		1		0	0.32	10.17
B		0			0	0		0	1		0			0		0	0	0	0	2	0	0		0		0	0		1		0	0.21	6.78
C		0			0	0		0	0		0			0		0	0	0	4	2	0	0		0		0	0		0		0	0.32	10.17
D		0			0	1		0	1		0			1		0	0	2	0	0	0	1		1		2	2		0		1	0.63	20.34
E		2			1	0		1	0		0			2		3	3	0	0	0	0	0		0		0	0		0		1	0.68	22.03
F		0			1	1		1	1		0			0		0	0	1	0	0	0	0		0		0	0		0		0	0.26	8.47
G		0			0	0		0	0		1			0		0	0	0	0	0	0	0		0		0	0		0		0	0.05	1.69
H		1			1	1		1	1		2			0		0	0	0	0	0	1	0		0		0	0		1		1	0.53	16.95
I		0			0	0		0	0		0			0		0	0	0	0	0	0	1		1		0	0		0		0	0.11	3.39
x		0			0	0		0	2		1			0		0	0	0	1	3	0	0		0		1	0		2		0	0.53	16.95
r		0			0	0		0	0		0			0		0	0	0	3	1	0	1		1		0	0		0		0	0.32	10.17
s		1			1	1		1	1		3			1		1	1	1	0	0	0	0		0		0	0		0		0	0.63	20.34
a		1			0	0		1	0		0			2		2	2	2	1	1	1	1		0		0	0		1		3	0.95	30.51
h		0			0	0		0	0		0			0		0	0	0	0	0	0	0		0		1	0		0		0	0.05	1.69
k		1			2	2		1	2		0			0		0	0	0	0	0	0	0		1		1	2		0		0	0.63	20.34
x		1			1	1		1	2		3			0		0	0	0	1	1	1	1		1		1	0		2		1	0.95	30.51
o		0			0	0		0	0		1			0		0	0	0	3	3	0	1		0		1	0		1		1	0.58	18.64
i		0			0	0		1	3		0			3		3	2	3	1	1	0	0		1		0	1		0		1	1.05	33.90
c		2			2	2		1	0		0			0		0	1	0	0	0	0	0		0		1	1		0		0	0.53	16.95
CV		98			123	122		90	108		47			74		75	81	74	25	19	7	23		50		105	101		10		49	67.42	100
CVn		32			57	57		48	48		0			23		23	23	24	9	9	7	19		46		104	101		7		7	33.89	50.27
CVs		66			66	65		42	60		47			51		52	58	50	16	10	0	4		4		1	0		3		42	33.53	49.73