Rotation Period in 2012-13 Apparition(N3D6)

Object	NNNTB dark spot	ID	N3D6

Period		Data Count	28
Rotation Period	9h55m10.4s±2.1s	Refernce Date	2012/12/03
Drift Rate (deg./day)	-0.736±0.050	Refernce Longitude	282.3±2.1
Limiting Date	2013/01/01－2013/03/26	Latitude	+45.4±0.6
Limiting Longitude	258.6－195.6	Wind Velocity (m/sec)	+4.6±0.5

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2013/01/01	12:12	258.0	2	C	D SPOT	NNNTB	+45.3	Go, Christopher	260.6	-2.6
2	2013/01/03	14:33	258.6	2	C	D SPOT	NNNTB	+44.0	Einaga, Hideo	259.1	-0.5
3	2013/01/06	11:51	254.4	2	C	D SPOT	NNNTB	+44.3	Ota, Satoshi	257.0	-2.6
4	2013/01/08	11:46	256.0	2	C	D SPOT	NNNTB	+46.1	Kozawa, Tokujiro	255.5	+0.5
5	2013/01/08	12:30	254.8	2	C	D SPOT	NNNTB	+45.7	Yamazaki, Akihiro	255.5	-0.7
6	2013/01/11	11:11	250.1	2	C	D SPOT	NNNTB	+45.4	Einaga, Hideo	253.3	-3.2
7	2013/01/15	14:17	248.6	2	C	D SPOT	NNNTB	+45.1	Einaga, Hideo	250.3	-1.7
8	2013/01/16	20:03	247.8	2	C	D SPOT	NNNTB	+45.3	Pellier, Christophe	249.3	-1.5
9	2013/01/18	12:09	247.7	2	C	D SPOT	NNNTB	+45.5	Einaga, Hideo	248.1	-0.4
10	2013/01/18	09:42	248.5	2	C	D SPOT	NNNTB	+44.5	Kumamori, Teruaki	248.2	+0.3
11	2013/01/21	09:28	247.6	2	C	D SPOT	NNNTB	+44.6	Kozawa, Tokujiro	246.0	+1.6
12	2013/01/23	11:30	246.1	2	C	D SPOT	NNNTB	+45.1	Einaga, Hideo	244.5	+1.6
13	2013/01/25	12:02	242.9	2	C	D SPOT	NNNTB	+45.4	Einaga, Hideo	243.0	-0.1
14	2013/01/27	12:41	241.6	2	C	D SPOT	NNNTB	+45.3	Yoshida, Tomoyuki	241.5	+0.1
15	2013/01/30	10:09	239.0	2	C	D SPOT	NNNTB	+45.2	Einaga, Hideo	239.3	-0.3
16	2013/01/30	10:10	240.6	2	C	D SPOT	NNNTB	+46.1	Kozawa, Tokujiro	239.3	+1.3
17	2013/01/30	10:52	240.9	2	C	D SPOT	NNNTB	+45.9	Yamazaki, Akihiro	239.3	+1.6
18	2013/02/02	08:40	239.1	2	C	D SPOT	NNNTB	+45.8	Einaga, Hideo	237.2	+1.9
19	2013/02/06	10:31	237.0	2	C	D SPOT	NNNTB	+45.2	Einaga, Hideo	234.2	+2.8
20	2013/02/18	11:13	229.5	2	C	W SPOT	NNNTB	+46.5	Ota, Satoshi	225.3	+4.2
21	2013/02/18	11:18	228.7	2	C	W SPOT	NNNTB	+45.1	Miyazaki, Isao	225.3	+3.4
22	2013/02/23	10:44	223.5	2	C	D SPOT	NNNTB	+44.6	Kozawa, Tokujiro	221.7	+1.8
23	2013/02/23	09:33	224.3	2	C	W SPOT	NNNTB	+45.5	Iwamasa, Ryuichi	221.7	+2.6
24	2013/03/09	10:45	210.8	2	C	D SPOT	NNNTB	+46.4	Miyazaki, Isao	211.4	-0.6
25	2013/03/14	10:27	206.5	2	C	D SPOT	NNNTB	+45.9	Go, Christopher	207.7	-1.2
26	2013/03/19	09:43	201.5	2	C	D SPOT	NNNTB	+45.9	Einaga, Hideo	204.0	-2.5
27	2013/03/21	11:19	199.8	2	C	D SPOT	NNNTB	+45.6	Einaga, Hideo	202.5	-2.7
28	2013/03/26	10:11	195.6	2	C	D SPOT	NNNTB	+45.1	Einaga, Hideo	198.9	-3.3