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

Statistics of sunspot activity

September, 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	Average	%
W	168				133		167	157	155	129		128	134	111	91	84	111	104	141	184	196										137.06	100
Wn	98				51		91	93	94	84		70	74	53	47	23	35	44	57	75	98										67.94	49.57
Ws	70				82		76	64	61	45		58	60	58	44	61	76	60	84	109	98										69.13	50.43
n	6				5		7	7	7	7		7	7	6	5	5	8	6	7	7	10										6.69	100
A	1				0		0	0	1	1		0	0	0	0	0	0	1	0	0	1										0.31	4.67
B	0				0		0	0	0	1		0	0	1	0	0	2	0	2	0	2										0.50	7.48
C	0				0		2	2	2	1		2	2	1	0	2	2	0	0	3	2										1.31	19.63
D	2				1		1	1	1	1		1	2	2	2	2	1	4	3	3	4										1.94	28.97
E	1				1		1	1	1	1		1	1	0	1	0	0	0	1	0	0										0.63	9.35
F	1				1		1	1	1	0		0	0	0	0	0	0	0	0	0	0										0.31	4.67
G	0				0		0	0	0	1		1	1	1	0	0	0	0	0	0	0										0.25	3.74
H	0				1		0	2	1	1		1	0	0	1	0	2	1	1	1	1										0.81	12.15
I	1				1		2	0	0	0		1	1	1	1	1	1	0	0	0	0										0.63	9.35
x	1				0		0	0	1	2		0	0	1	0	0	2	1	2	0	3										0.81	12.15
r	0				0		0	1	0	0		2	1	0	1	2	2	0	0	0	0										0.56	8.41
s	1				1		4	2	1	2		3	3	3	2	0	1	1	1	1	1										1.69	25.23
a	2				3		2	2	4	3		2	3	2	2	3	2	3	3	5	5										2.88	42.99
h	0				0		0	0	0	0		0	0	0	0	0	1	0	0	0	0										0.06	0.93
k	2				1		1	2	1	0		0	0	0	0	0	0	1	1	1	1										0.69	10.28
x	2				2		2	2	2	2		2	1	1	2	1	3	2	1	1	2										1.75	26.17
o	1				1		1	2	1	2		2	5	5	2	4	5	2	3	2	4										2.63	39.25
i	2				1		4	3	3	2		3	0	0	1	0	0	1	2	2	2										1.63	24.30
c	1				1		0	0	1	1		0	1	0	0	0	0	1	1	2	2										0.69	10.28
CV	158				119		140	157	133	103		102	122	87	81	55	90	126	133	141	159										119.13	100
CVn	101				55		55	60	69	64		71	77	45	48	19	55	66	67	74	107										64.56	54.20
CVs	57				64		85	97	64	39		31	45	42	33	36	35	60	66	67	52										54.56	45.80