Observation log for Wolf Sunspot Number - 2015

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January 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01
02
03	11:05	1.2	-3.2	24.4	1	0	8	53	10	133	143
04
05	7:57	0.3	-3.4	359.8	0	0	7	55	0	125	125
06
07	7:48	-0.7	-3.7	333.5	2	6	4	11	26	51	77
08	7:48	-1.2	-3.8	320.3	2	9	3	12	29	42	71
09
10	9:26	-2.1	-4.0	293.1	4	39	4	12	79	52	131
11
12
13	7:51	-3.5	-4.3	254.5	3	14	4	24	44	64	108
14
15
16	7:56	-5.0	-4.6	214.9	3	5	2	9	35	29	64
17
18	8:03	-5.9	-4.8	188.5	3	3	4	12	33	52	85
19
20
21
22
23
24	10:43	-8.6	-5.4	108.1	3	6	4	15	36	55	91
25
26
27
28
29	7:54	-10.8	-5.8	43.8	4	22	5	50	62	100	162
30
31	10:49	-11.6	-5.9	15.8	4	53	6	47	93	107	200
Monthly mean					2.6	14.3	4.6	27.3	40.6	73.6	114.3
February 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01	8:26	-12.0	-6.0	4.0	3	23	5	13	53	63	116
02
03	7:49	-12.8	-6.1	338.0	2	34	5	9	54	59	113
04
05
06	7:50	-14.0	-6.3	298.5	3	24	2	16	54	36	90
07	9:03	-14.4	-6.4	284.6	2	28	2	26	48	46	94
08
09
10	7:50	-15.5	-6.6	245.8	3	23	2	18	53	38	91
11	8:49	-15.9	-6.6	232.1	2	32	1	8	52	18	70
12
13
14	8:39	-16.9	-6.8	192.7	4	18	0	0	58	0	58
15	12:53	-17.3	-6.8	177.2	4	14	0	0	54	0	54
16
17
18
19
20	7:52	-18.9	-7.0	114.1	4	14	3	8	54	38	92
21
22
23
24
25
26
27	7:51	-20.9	-7.2	21.9	3	7	3	8	37	38	75
28
Monthly mean					3.0	21.7	2.3	10.6	51.7	33.6	85.3
March 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01
02	8:06	-21.7	-7.2	342.3	2	15	4	8	35	48	83
03
04
05	7:53	-22.4	-7.3	302.9	1	5	2	5	15	25	40
06
07
08
09
10
11	7:30	-23.6	-7.2	224.0	0	0	2	20	0	40	40
12	8:22	-23.8	-7.2	210.4	0	0	2	38	0	58	58
13
14
15
16
17	7:25	-24.7	-7.1	145.0	0	0	3	15	0	45	45
18
19
20
21
22	9:11	-25.3	-7.0	78.1	2	1	4	14	21	54	75
23
24
25
26	7:25	-25.7	-6.9	26.4	5	5	3	24	55	54	109
27
28
29	8:51	-26.0	-6.7	346.0	4	8	5	38	48	88	136
30
31
Monthly mean					1.8	4.3	3.1	20.3	21.8	51.5	73.3
April 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01
02
03
04
05
06	7:35	-26.3	-6.3	241.1	2	8	4	18	28	58	86
07
08
09
10
11
12	8:47	-26.2	-5.9	161.3	3	20	2	9	50	29	79
13
14
15
16	7:41	-26.0	-5.6	109.1	4	56	2	0	96	20	116
17
18	9:05	-25.8	-5.4	81.9	5	51	4	13	101	53	154
19
20
21
22	6:53	-25.5	-5.1	30.3	6	28	4	22	88	62	150
23
24
25	9:14	-25.1	-4.8	349.4	4	5	3	26	45	56	101
26
27	7:14	-24.8	-4.6	324.1	2	5	3	12	25	42	67
28
29
30	8:41	-24.4	-4.3	283.6	1	2	2	5	12	25	37
Monthly mean					3.4	21.9	3.0	13.1	55.6	43.1	98.8
May 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01	9:03	-24.2	-4.2	270.2	1	0	2	6	10	26	36
02	9:24	-24.0	-4.1	256.8	1	0	2	6	10	26	36
03	11:36	-23.8	-4.0	242.4	2	4	2	20	24	40	64
04
05
06	9:35	-23.2	-3.7	203.8	4	34	3	49	74	79	153
07
08
09
10	9:39	-22.3	-3.3	150.9	4	62	4	11	102	51	153
11
12
13
14	7:21	-21.4	-2.8	99.3	7	65	6	11	135	71	206
15
16
17	9:53	-20.5	-2.5	58.3	5	12	6	12	62	72	134
18
19
20
21	7:26	-19.3	-2.0	6.7	1	1	5	5	11	55	66
22
23
24
25
26
27
28
29
30
31	11:56	-15.9	-0.8	231.8	2	2	2	3	22	23	45
Monthly mean					3.0	20.0	3.6	13.7	50.0	49.2	99.2
June 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01
02	6:47	-15.2	-0.6	208.2	1	0	4	15	10	55	65
03
04
05
06
07	11:42	-13.2	0.0	139.3	6	44	5	12	104	62	166
08
09
10
11
12
13
14
15	7:04	-10.0	1.0	36.0	5	9	3	27	59	57	116
16
17
18
19
20	8:00	-7.8	1.6	329.3	3	49	1	31	79	41	120
21
22
23
24	7:02	-6.1	2.0	276.9	2	48	1	1	68	11	79
25
26
27
28
29
30
Monthly mean					3.4	30.0	2.8	17.2	64.0	45.2	109.2
July 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01
02
03
04
05
06
07
08
09
10
11	9:06	1.7	3.9	50.7	4	23	5	11	63	61	124
12
13
14
15	7:11	3.4	4.3	358.8	2	5	1	4	25	14	39
16
17
18
19	9:55	5.2	4.7	304.4	3	15	1	1	45	11	56
20	11:25	5.7	4.8	290.4	2	16	1	1	36	11	47
21
22	7:19	6.5	4.9	266.2	2	16	0	0	36	0	36
23
24
25
26	12:21	8.3	5.3	210.5	1	0	2	21	10	41	51
27
28
29
30
31
Monthly mean					2.3	12.5	1.7	6.3	35.8	23.0	58.8
August 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01	8:15	10.6	5.7	133.4	3	9	3	5	39	35	74
02
03	7:05	11.4	5.9	107.6	3	11	2	2	41	22	63
04
05
06	6:49	12.6	6.1	68.0	4	10	3	31	50	61	111
07
08
09	10:06	13.7	6.3	26.6	4	7	2	57	47	77	124
10
11
12
13
14
15	9:33	15.9	6.6	307.5	2	8	2	8	28	28	56
16
17
18
19
20
21
22
23	9:17	18.4	7.0	202.0	1	6	2	62	16	82	98
24
25
26
27
28
29
30
31
Monthly mean					2.8	8.5	2.3	27.5	36.8	50.8	87.7
September 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01
02
03
04
05	11:28	22.0	7.2	29.0	3	3	2	2	33	22	55
06
07
08
09
10
11
12
13
14
15
16
17
18
19	9:46	24.6	7.2	205.1	1	10	2	23	20	43	63
20
21	9:53	24.9	7.1	178.6	2	6	2	6	26	26	52
22	8:24	25.0	7.1	166.2	3	24	2	8	54	28	82
23
24
25
26
27	14:47	25.6	6.9	96.7	5	36	4	40	86	80	166
28
29
30	7:44	25.9	6.8	61.0	4	22	3	49	62	79	141
Monthly mean					3.0	16.8	2.5	21.3	46.8	46.3	93.2
October 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01
02
03	9:27	26.1	6.7	20.5	2	16	1	7	36	17	53
04	10:03	26.1	6.6	7.0	2	14	0	0	34	0	34
05
06	7:30	26.2	6.5	342.0	1	5	0	0	15	0	15
07
08
09	7:28	26.3	6.3	302.4	0	0	2	1	0	21	21
10
11
12	10:17	26.3	6.1	261.3	1	1	4	5	11	45	56
13
14
15
16
17
18	10:55	26.1	5.7	181.8	1	6	5	29	16	79	95
19
20
21
22
23
24
25	9:28	25.5	5.1	90.3	2	27	4	6	47	46	93
26
27	7:21	25.3	4.9	65.1	3	17	3	0	47	30	77
28
29
30
31
Monthly mean					1.5	10.8	2.4	6.0	25.8	29.8	55.5
November 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01	9:28	24.6	4.4	358.0	6	51	1	0	111	10	121
02
03
04	7:24	24.0	4.1	319.5	5	64	1	0	114	10	124
05	7:20	23.9	4.0	306.4	6	53	0	0	113	0	113
06
07
08
09
10
11	7:15	22.5	3.4	227.3	3	13	3	18	43	48	91
12
13	7:17	21.8	3.0	187.8	3	7	3	6	37	36	73
14
15
16	9:12	21.2	2.8	160.3	4	17	3	0	57	30	87
17
18
19	7:27	20.4	2.4	121.8	4	18	1	0	58	10	68
20
21
22
23
24
25
26
27
28	11:59	17.3	1.3	0.6	4	22	0	0	62	0	62
29	8:10	17.0	1.2	349.5	4	18	0	0	58	0	58
30
Monthly mean					4.3	29.2	1.3	2.7	72.6	16.0	88.6
December 2015
Date	Time (JST)	P	B0	L0	North.		South.		Revised Wolf Number
					g'	f	g'	f	North	South	Total
01	7:27	16.3	1.0	323.6	4	13	1	0	53	10	63
02
03
04
05	10:41	14.6	0.4	269.1	2	1	1	8	21	18	39
06
07
08	8:23	13.4	0.1	230.8	1	3	3	10	13	40	53
09
10
11
12	9:52	11.7	-0.5	177.3	1	3	6	19	13	79	92
13
14
15
16	7:45	9.9	-1.0	125.8	2	16	5	2	36	52	88
17
18	7:36	9.0	-1.2	99.5	2	17	3	1	37	31	68
19	10:43	8.5	-1.4	84.6	2	18	3	1	38	31	69
20
21
22
23
24
25
26	11:07	5.2	-2.2	352.2	2	9	1	33	29	43	72
27
28
29	7:49	3.8	-2.6	314.5	2	5	1	16	25	26	51
30	9:19	3.3	-2.7	300.5	2	4	1	23	24	33	57
31
Monthly mean					2.0	8.9	2.5	11.3	28.9	36.3	65.2

This individual observed result has no garantee of reliability by any public sector organizations.