Rotation Period in 2012-13 Apparition(N3D8)

Object	NNNTB dark spot	ID	N3D8

Period	p1	Data Count	10
Rotation Period	9h55m27.2s±2.0s	Refernce Date	2012/12/03
Drift Rate (deg./day)	-0.327±0.049	Refernce Longitude	343.3±0.8
Limiting Date	2012/11/14－2012/12/16	Latitude	+45.4±0.5
Limiting Longitude	348.9－338.1	Wind Velocity (m/sec)	+0.6±0.5

Period	p2	Data Count	30
Rotation Period	9h55m07.1s±1.9s	Refernce Date	2012/12/03
Drift Rate (deg./day)	-0.816±0.046	Refernce Longitude	349.7±2.1
Limiting Date	2012/12/21－2013/03/24	Latitude	+45.6±0.6
Limiting Longitude	331.2－254.1	Wind Velocity (m/sec)	+5.4±0.4

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2012/11/14	14:44	348.9	2	C	D SPOT	NNNTB	+45.9	Akutsu, Tomio	349.3	-0.4
2	2012/11/16	16:16	348.7	2	C	D SPOT	NNNTB	+45.6	Akutsu, Tomio	348.6	+0.1
3	2012/11/21	15:25	347.0	2	C	D SPOT	NNNTB	+46.1	Akutsu, Tomio	347.0	0.0
4	2012/11/29	22:24	344.4	2	C	D SPOT	NNNTB	+44.7	Pellier, Christophe	344.3	+0.1
5	2012/12/04	12:31	342.6	2	C	D SPOT	NNNTB	+45.5	Kumamori, Teruaki	342.8	-0.2
6	2012/12/06	13:06	341.8	2	C	D SPOT	NNNTB	+44.9	Miyazaki, Isao	342.1	-0.3
7	2012/12/08	14:02	343.4	2	C	D SPOT	NNNTB	+45.5	Akutsu, Tomio	341.5	+1.9
8	2012/12/11	13:27	340.1	2	C	D SPOT	NNNTB	+44.6	Go, Christopher	340.5	-0.4
9	2012/12/13	14:58	339.7	2	C	D SPOT	NNNTB	+45.3	Einaga, Hideo	339.8	-0.1
10	2012/12/16	12:05	338.1	2	C	D SPOT	NNNTB	+45.7	Kozawa, Tokujiro	338.9	-0.8
11	2012/12/21	11:10	331.2	2	C	D SPOT	NNNTB	+46.0	Miyazaki, Isao	334.6	-3.4
12	2012/12/25	12:17	329.0	2	C	D SPOT	NNNTB	+46.2	Miyazaki, Isao	331.3	-2.3
13	2013/01/02	09:18	324.4	2	C	D SPOT	NNNTB	+45.1	Miyazaki, Isao	324.8	-0.4
14	2013/01/04	10:29	320.5	2	C	D SPOT	NNNTB	+44.8	Einaga, Hideo	323.2	-2.7
15	2013/01/04	11:56	321.4	2	C	D SPOT	NNNTB	+44.9	Go, Christopher	323.1	-1.7
16	2013/01/06	14:09	321.1	2	C	D SPOT	NNNTB	+45.0	Einaga, Hideo	321.4	-0.3
17	2013/01/11	11:11	317.2	2	C	D SPOT	NNNTB	+45.2	Einaga, Hideo	317.4	-0.2
18	2013/01/16	20:03	314.9	2	C	D SPOT	NNNTB	+45.5	Pellier, Christophe	313.0	+1.9
19	2013/01/18	12:09	314.4	2	C	D SPOT	NNNTB	+44.5	Einaga, Hideo	311.7	+2.7
20	2013/01/23	11:30	308.9	2	C	D SPOT	NNNTB	+45.9	Einaga, Hideo	307.6	+1.3
21	2013/01/28	11:01	304.2	2	C	D SPOT	NNNTB	+45.4	Yamazaki, Akihiro	303.6	+0.6
22	2013/02/02	11:14	303.2	2	C	D SPOT	NNNTB	+44.5	Einaga, Hideo	299.5	+3.7
23	2013/02/09	10:29	294.2	2	C	D SPOT	NNNTB	+45.8	Go, Christopher	293.8	+0.4
24	2013/02/09	11:47	294.0	2	C	D SPOT	NNNTB	+46.0	Yamazaki, Akihiro	293.7	+0.3
25	2013/02/11	11:58	292.3	2	C	D SPOT	NNNTB	+45.3	Go, Christopher	292.1	+0.2
26	2013/02/16	21:35	288.9	2	C	D SPOT	NNNTB	+45.0	Delcroix, Marc	287.7	+1.2
27	2013/02/16	11:59	289.3	2	C	D SPOT	NNNTB	+46.0	Einaga, Hideo	288.0	+1.3
28	2013/02/16	11:44	287.9	2	C	D SPOT	NNNTB	+45.0	Go, Christopher	288.0	-0.1
29	2013/02/16	11:04	288.6	2	C	D SPOT	NNNTB	+45.8	Miyazaki, Isao	288.0	+0.6
30	2013/02/18	12:23	288.4	2	C	D SPOT	NNNTB	+45.5	Miyazaki, Isao	286.4	+2.0
31	2013/02/21	10:49	283.9	2	C	D SPOT	NNNTB	+46.3	Ota, Satoshi	284.0	-0.1
32	2013/02/23	10:44	284.0	2	C	D SPOT	NNNTB	+46.4	Kozawa, Tokujiro	282.3	+1.7
33	2013/02/23	11:54	284.0	2	C	D SPOT	NNNTB	+45.2	Miyazaki, Isao	282.3	+1.7
34	2013/02/26	19:23	283.3	2	C	W SPOT	NNNTB	+45.9	Delcroix, Marc	279.6	+3.7
35	2013/03/05	10:36	274.2	2	C	D SPOT	NNNTB	+45.8	Einaga, Hideo	274.2	0.0
36	2013/03/05	09:54	274.6	2	C	D SPOT	NNNTB	+45.4	Kozawa, Tokujiro	274.2	+0.4
37	2013/03/12	10:24	267.1	2	C	D SPOT	NNNTB	+47.5	Miyazaki, Isao	268.5	-1.4
38	2013/03/12	11:20	266.1	2	C	D SPOT	NNNTB	+46.3	Einaga, Hideo	268.4	-2.3
39	2013/03/19	10:12	258.7	2	C	D SPOT	NNNTB	+46.0	Einaga, Hideo	262.8	-4.1
40	2013/03/24	10:10	254.1	2	C	D SPOT	NNNTB	+45.7	Go, Christopher	258.7	-4.6