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

April, 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	Average	%
W		231		153	165	172	131		195	217		198	171	161	140	74	55	78	103	188	204	238	199	239	230	230	241	201	215	167	176.77	100
Wn		129		90	82	86	41		67	31		20	29	47	32	24	27	50	88	131	138	167	149	151	153	160	185	164	166	142	98.04	55.46
Ws		102		63	83	86	90		128	186		178	142	114	108	50	28	28	15	57	66	71	50	88	77	70	56	37	49	25	78.73	44.54
n		9		9	9	9	7		10	9		8	8	9	8	6	4	5	5	7	8	7	7	8	8	10	10	9	8	7	7.85	100
A		0		0	0	0	0		0	0		1	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	1	0.15	1.96
B		0		0	0	1	0		0	1		0	0	1	1	0	1	1	0	0	0	0	0	2	1	1	0	1	0	0	0.42	5.39
C		3		3	2	0	0		1	2		1	1	2	2	0	1	1	1	2	2	1	1	1	2	3	3	1	2	1	1.50	19.12
D		2		3	3	3	1		2	3		4	5	4	3	1	1	2	2	3	3	3	2	1	2	1	2	2	3	0	2.35	29.90
E		1		0	1	0	2		2	1		1	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	2	0.42	5.39
F		1		0	0	0	0		0	0		0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	0	0.42	5.39
G		0		1	1	0	0		0	0		1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0.31	3.92
H		1		1	1	1	3		4	1		0	1	1	1	1	1	1	1	1	1	2	1	1	1	2	2	2	1	1	1.31	16.67
I		1		1	1	4	1		1	1		0	0	0	0	3	0	0	0	0	1	0	2	2	1	1	1	2	1	1	0.96	12.26
x		0		0	0	1	0		0	1		1	0	1	1	0	1	1	0	0	0	0	0	2	1	2	1	1	0	1	0.58	7.35
r		0		0	0	0	0		2	2		1	2	2	2	2	2	0	2	2	1	0	1	1	2	2	2	0	2	1	1.19	15.20
s		2		2	2	3	2		3	3		3	3	2	2	3	1	2	1	1	6	2	4	3	2	2	3	2	3	2	2.46	31.37
a		4		4	6	4	4		4	2		2	2	3	2	1	0	2	1	3	0	4	1	1	2	3	3	5	2	2	2.58	32.84
h		0		0	0	0	0		0	0		0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	0	0.08	0.98
k		3		3	1	1	1		1	1		1	1	1	1	0	0	0	1	1	1	1	0	0	1	1	1	1	1	1	0.96	12.26
x		2		2	2	5	4		5	2		1	1	1	1	4	1	1	1	1	2	2	3	3	2	4	4	4	2	3	2.42	30.88
o		4		7	5	1	0		3	6		4	5	6	6	2	3	4	3	3	5	3	3	4	5	5	4	3	4	2	3.85	49.02
i		2		0	2	3	3		1	1		3	2	1	0	0	0	0	1	3	1	1	1	0	1	1	2	2	2	1	1.31	16.67
c		1		0	0	0	0		1	0		0	0	1	1	0	0	0	0	0	0	1	0	1	0	0	0	0	0	1	0.27	3.43
CV		219		209	166	139	126		160	136		167	161	158	135	73	30	64	94	128	153	157	133	121	120	115	135	133	144	126	134.69	100
CVn		131		102	64	52	40		38	23		26	36	38	30	30	15	54	89	93	103	102	93	80	82	80	101	103	110	111	70.23	52.14
CVs		88		107	102	87	86		122	113		141	125	120	105	43	15	10	5	35	49	55	40	41	38	35	34	30	34	15	64.42	47.83
gr		9		9	9	9	4		9	9		7	7	8	7	3	4	5	5	7	7	6	6	9	8	8	8	7	7	5	7.00	89.22
grfp		93		48	48	57	42		65	68		72	46	41	32	8	5	11	33	66	86	106	84	90	104	71	89	63	74	61	60.12	61.73
grf		48		15	27	25	16		29	59		45	44	29	27	3	10	17	20	52	36	61	44	69	46	57	50	46	60	34	37.27	38.27
efp		0		0	0	0	3		1	0		0	1	1	1	3	0	0	0	0	2	1	1	0	0	1	2	2	1	2	0.85	10.78
ef		0		0	0	0	0		0	0		1	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0.08	0.98
Cond		1		3	2	3	4		1	1		2	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	2	1	1	1.42	71.54