Rotation Period in 2010-11 Apparition(STZD2)

Object	STZ dark spot	ID	STZD2

Period		Data Count	34
Rotation Period	9h55m19.3s±2.1s	Refernce Date	2010/09/21
Drift Rate (deg./day)	-0.521±0.052	Refernce Longitude	125.9±1.8
Limiting Date	2010/08/21－2010/10/29	Latitude	-34.0±0.5
Limiting Longitude	141.5－107.0	Wind Velocity (m/sec)	+3.0±0.6

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2010/08/21	03:25	141.5	2	C	D SPOT	STZ	-33.4	Delcroix, Marc	142.0	-0.5
2	2010/08/23	15:04	140.3	2	C	D SPOT	STZ	-34.0	Einaga, Hideo	140.7	-0.4
3	2010/08/25	17:26	140.4	2	C	D SPOT	STZ	-34.4	Yamazaki, Akihiro	139.6	+0.8
4	2010/08/25	16:44	139.5	2	C	D SPOT	STZ	-33.0	Kumamori, Teruaki	139.6	-0.1
5	2010/08/27	18:46	138.4	2	C	D SPOT	STZ	-34.5	Yamazaki, Akihiro	138.5	-0.1
6	2010/08/30	15:45	135.3	2	C	D SPOT	STZ	-33.6	Yamazaki, Akihiro	137.0	-1.7
7	2010/08/30	16:18	134.5	2	C	D SPOT	STZ	-34.5	Kumamori, Teruaki	137.0	-2.5
8	2010/09/02	14:04	135.0	2	C	D SPOT	STZ	-34.0	Hasebe, Takao	135.5	-0.5
9	2010/09/03	17:59	133.4	2	C	D SPOT	STZ	-33.9	Hasebe, Takao	134.9	-1.5
10	2010/09/04	15:30	133.0	2	C	D SPOT	STZ	-34.2	Akutsu, Tomio	134.4	-1.4
11	2010/09/04	14:41	133.6	2	C	D SPOT	STZ	-33.8	Hasebe, Takao	134.4	-0.8
12	2010/09/06	16:29	132.7	2	C	D SPOT	STZ	-33.8	Akutsu, Tomio	133.3	-0.6
13	2010/09/11	16:01	132.2	2	C	D SPOT	STZ	-34.0	Kazemoto, Akira	130.7	+1.5
14	2010/09/12	12:43	130.4	2	C	D SPOT	STZ	-35.0	Akutsu, Tomio	130.3	+0.1
15	2010/09/13	16:56	131.9	2	C	D SPOT	STZ	-34.6	Ota, Satoshi	129.7	+2.2
16	2010/09/16	14:12	131.2	2	C	D SPOT	STZ	-33.6	Akutsu, Tomio	128.2	+3.0
17	2010/09/16	15:21	130.7	2	C	D SPOT	STZ	-33.5	Kumamori, Teruaki	128.2	+2.5
18	2010/09/18	15:06	128.8	2	C	D SPOT	STZ	-33.5	Kazemoto, Akira	127.1	+1.7
19	2010/09/19	12:50	129.1	2	C	D SPOT	STZ	-34.3	Akutsu, Tomio	126.6	+2.5
20	2010/09/21	12:57	127.9	2	C	D SPOT	STZ	-34.3	Kumamori, Teruaki	125.6	+2.3
21	2010/09/21	14:25	128.8	2	C	D SPOT	STZ	-33.3	Ota, Satoshi	125.6	+3.2
22	2010/09/23	15:44	126.9	2	C	D SPOT	STZ	-34.0	Akutsu, Tomio	124.5	+2.4
23	2010/09/28	14:54	122.0	2	C	D SPOT	STZ	-34.4	Ota, Satoshi	121.9	+0.1
24	2010/10/01	11:52	118.6	2	C	D SPOT	STZ	-34.6	Einaga, Hideo	120.4	-1.8
25	2010/10/03	12:55	118.5	2	C	D SPOT	STZ	-34.0	Akutsu, Tomio	119.3	-0.8
26	2010/10/03	13:37	117.7	2	C	D SPOT	STZ	-34.0	Go, Christopher	119.3	-1.6
27	2010/10/03	14:21	118.2	2	C	D SPOT	STZ	-34.4	Ota, Satoshi	119.3	-1.1
28	2010/10/05	15:14	115.6	2	C	D SPOT	STZ	-34.9	Kumamori, Teruaki	118.3	-2.7
29	2010/10/06	11:18	114.8	2	C	D SPOT	STZ	-34.5	Yunoki, Kenkichi	117.8	-3.0
30	2010/10/08	11:48	114.5	2	C	D SPOT	STZ	-33.6	Akutsu, Hiroaki	116.8	-2.3
31	2010/10/10	13:48	113.8	2	C	D SPOT	STZ	-34.0	Kumamori, Teruaki	115.7	-1.9
32	2010/10/24	14:57	109.2	2	C	D SPOT	STZ	-33.8	Ota, Satoshi	108.4	+0.8
33	2010/10/27	22:07	107.0	2	C	D SPOT	STZ	-34.1	Delcroix, Marc	106.6	+0.4
34	2010/10/29	14:26	107.4	2	C	D SPOT	STZ	-34.1	Akutsu, Tomio	105.8	+1.6