The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2001 - May, 2001

Statistics of sunspot activity

May, 2001

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					176	166	115			74	130	137	165		117	159	130	158	122	139	138	163	184	167		177	169	109	95	86		139.82	100
Wn					132	123	60			28	55	67	77		57	75	79	109	83	81	95	113	125	120		127	108	79	84	64		88.23	63.10
Ws					44	43	55			46	75	70	88		60	84	51	49	39	58	43	50	59	47		50	61	30	11	22		51.59	36.90
n					8	7	7			5	7	6	6		5	6	6	7	7	7	7	10	9	8		10	10	7	6	5		7.09	100
A					0	0	0			0	0	0	1		0	0	0	0	0	0	0	0	0	0		0	0	0	0	0		0.05	0.64
B					0	0	0			0	1	0	0		0	0	0	0	0	0	0	0	0	1		1	0	0	0	0		0.14	1.92
C					1	1	0			2	2	1	0		0	0	0	0	0	1	0	0	0	0		0	1	0	1	1		0.50	7.05
D					1	0	1			0	1	2	2		2	3	1	3	2	2	4	4	2	2		3	6	2	1	1		2.05	28.85
E					1	0	0			1	1	1	2		2	2	2	2	2	1	1	1	1	1		0	0	0	1	1		1.05	14.74
F					1	1	1			0	0	0	0		0	0	0	0	0	0	0	0	0	0		0	0	0	0	0		0.14	1.92
G					0	1	1			0	0	0	0		0	0	1	1	1	0	0	0	0	0		3	1	2	0	0		0.50	7.05
H					3	3	3			1	0	1	1		1	1	2	1	1	2	2	2	3	3		2	1	2	2	0		1.68	23.72
I					1	1	1			1	2	1	0		0	0	0	0	1	1	0	3	3	1		1	1	1	1	2		1.00	14.10
x					0	0	0			0	1	0	1		0	0	0	0	0	0	0	0	0	1		1	0	0	0	0		0.18	2.56
r					0	1	1			1	1	1	0		0	1	0	1	0	0	1	2	2	0		2	3	0	0	1		0.82	11.54
s					2	4	2			1	1	2	2		3	2	4	1	2	4	4	4	3	3		5	4	3	2	1		2.68	37.82
a					6	2	4			2	3	1	3		2	3	2	5	5	2	1	3	3	3		1	2	3	3	3		2.82	39.74
h					0	0	0			0	0	0	0		0	0	0	0	0	0	0	1	1	1		1	1	1	1	0		0.32	4.49
k					0	0	0			1	1	2	0		0	0	0	0	0	1	1	0	0	0		0	0	0	0	0		0.27	3.85
x					4	4	4			2	2	2	2		1	1	2	1	2	3	2	5	6	4		3	2	3	3	2		2.73	38.46
o					2	2	2			2	3	2	0		2	3	2	4	3	3	4	3	0	2		6	6	3	2	2		2.64	37.18
i					2	1	1			1	2	2	4		2	1	1	1	1	1	1	1	1	1		1	2	1	1	1		1.36	19.23
c					0	0	0			0	0	0	0		0	1	1	1	1	0	0	1	2	1		0	0	0	0	0		0.36	5.13
CV					108	92	94			77	101	146	107		106	119	123	136	133	129	149	179	157	142		188	201	144	110	64		127.50	100
CVn					72	70	57			57	60	76	55		48	55	78	85	72	82	107	145	117	111		156	145	112	100	50		86.82	68.09
CVs					36	22	37			20	41	70	52		58	64	45	51	61	47	42	34	40	31		32	56	32	10	14		40.68	31.91
gr					5	5	7			3	7	6	5		4	5	4	5	5	4	5	7	6	7		7	8	6	4	3		5.36	75.64
grfp					65	47	27			14	38	56	65		44	58	40	54	41	40	49	51	57	57		42	42	27	18	20		43.27	64.41
grf					28	47	18			8	22	21	39		22	40	28	32	9	26	17	9	34	29		32	25	11	15	14		23.91	35.59
efp					3	2	0			2	0	0	1		1	1	2	2	2	3	2	3	3	1		3	2	1	2	2		1.73	24.36
ef					0	0	0			0	0	0	0		0	0	0	0	0	0	0	0	0	0		0	0	0	0	0		0.00	0.00
Cond					3	1	2			3	2	2	2		2	2	2	2	2	1	1	3	2	1		1	2	1	2	1		1.82	63.64