The Sunspot Observer - Average annual indices of solar activity - Solar activity in 1999 - September, 1999

Statistics of sunspot activity

September, 1999

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		110	89	92	95	66	111	107						119		117						54				22				72	87.83	100
Wn		78	70	77	83	66	82	66						94		100						26				22				48	67.67	77.04
Ws		32	19	15	12	0	29	41						25		17						28				0				24	20.17	22.96
n		7	6	6	6	4	7	6						6		7						4				2				6	5.58	100
A		0	0	0	0	0	0	0						0		1						0				0				0	0.08	1.49
B		0	0	0	0	0	0	0						0		0						0				0				0	0.00	0.00
C		2	3	2	1	0	1	2						1		2						2				0				1	1.42	25.37
D		3	1	1	2	3	4	2						1		1						1				0				0	1.58	28.36
E		0	0	1	1	0	1	1						2		1						0				0				0	0.58	10.45
F		0	0	0	0	0	0	0						0		0						0				0				0	0.00	0.00
G		0	0	0	0	0	0	0						1		1						0				0				0	0.17	2.99
H		0	1	2	2	1	0	0						1		0						1				2				4	1.17	20.90
I		2	1	0	0	0	1	1						0		1						0				0				1	0.58	10.45
x		0	0	0	0	0	0	0						0		1						0				0				0	0.08	1.49
r		0	0	0	0	1	2	1						0		1						0				0				0	0.42	7.46
s		1	1	1	1	0	1	1						3		1						3				2				5	1.67	29.85
a		6	5	5	5	3	4	4						3		3						1				0				1	3.33	59.70
h		0	0	0	0	0	0	0						0		0						0				0				0	0.00	0.00
k		0	0	0	0	0	0	0						0		1						0				0				0	0.08	1.49
x		2	2	2	2	1	1	1						1		2						1				2				5	1.83	32.84
o		5	4	2	3	3	4	2						2		4						3				0				1	2.75	49.25
i		0	0	2	1	0	2	3						3		1						0				0				0	1.00	17.91
c		0	0	0	0	0	0	0						0		0						0				0				0	0.00	0.00
CV		93	60	78	86	58	111	70						118		110						51				20				58	76.08	100
CVn		77	52	70	78	58	73	45						89		99						21				20				41	60.25	79.19
CVs		16	8	8	8	0	38	25						29		11						30				0				17	15.83	20.81
gr		7	5	4	5	4	6	5						6		5						3				0				4	4.50	81.82
grfp		24	16	16	20	18	25	34						29		28						5				0				9	18.67	59.76
grf		16	13	14	15	8	16	12						30		17						8				0				2	12.58	40.24
efp		0	1	2	1	0	1	1						0		1						1				2				1	0.92	16.67
ef		0	0	0	0	0	0	0						0		1						0				0				0	0.08	1.52
Cond		3	2	2	3	3	2	1						1		2						2				3				3	2.25	55.00