Rotation Period in 2024-25 Apparition(STRD4)

Object	STrZ dark spot	ID	STRD4

Period	p1	Data Count	9
Rotation Period	9h55m24.4s±3.5s	Refernce Date	2024/12/07
Drift Rate (deg./day)	-0.396±0.085	Refernce Longitude	312.4±1.0
Limiting Date	2024/06/22－2024/07/15	Latitude	-22.9±0.6
Limiting Longitude	19.2－9.9	Wind Velocity (m/sec)	+1.7±1.1

Period	p2	Data Count	33
Rotation Period	9h56m11.8s±1.8s	Refernce Date	2024/12/07
Drift Rate (deg./day)	+0.759±0.044	Refernce Longitude	119.4±1.1
Limiting Date	2024/07/17－2024/09/06	Latitude	-22.4±0.7
Limiting Longitude	13.8－52.4	Wind Velocity (m/sec)	-13.6±0.6

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2024/06/22	05:59	19.2	2	C	D SPOT	STRB	-23.6	Foster, Clyde	18.8	+0.4
2	2024/06/26	20:11	16.9	2	C	D SPOT	STRZ	-23.1	Miyazaki, Isao	17.0	-0.1
3	2024/06/28	20:13	16.7	2	C	D COL	STRZ	-22.4	Miyazaki, Isao	16.2	+0.5
4	2024/07/03	20:22	14.5	2	C	D SPOT	STRB	-23.4	Miyazaki, Isao	14.2	+0.3
5	2024/07/06	06:47	12.3	2	C	D SPOT	STRZ	-21.7	Foster, Clyde	13.2	-0.9
6	2024/07/08	19:22	10.6	2	C	D SPOT	STRZ	-23.2	Miyazaki, Isao	12.2	-1.6
7	2024/07/10	20:22	11.6	2	C	D SPOT	STRB	-23.2	Miyazaki, Isao	11.4	+0.2
8	2024/07/13	19:17	9.9	2	C	D SPOT	STRZ	-22.9	Miyazaki, Isao	10.3	-0.4
9	2024/07/15	20:11	11.1	2	C	D SPOT	STRB	-22.8	Miyazaki, Isao	9.5	+1.6
10	2024/07/17	20:40	13.8	2	C	D SPOT	STRB	-22.9	Miyazaki, Isao	11.6	+2.2
11	2024/07/20	19:04	15.8	2	C	D SPOT	STRZ	-22.6	Einaga, Hideo	13.8	+2.0
12	2024/07/20	20:29	14.1	2	C	D SPOT	STRZ	-22.5	Miyazaki, Isao	13.8	+0.3
13	2024/07/21	05:32	15.8	2	C	D SPOT	STRZ	-22.4	Foster, Clyde	14.1	+1.7
14	2024/07/27	19:24	19.4	2	C	D SPOT	STRZ	-23.2	Suzuki, Kunihiko	19.1	+0.3
15	2024/07/27	20:46	18.8	2	C	D SPOT	STRZ	-23.0	Miyazaki, Isao	19.1	-0.3
16	2024/07/28	06:09	18.9	2	C	D SPOT	STRZ	-22.7	Foster, Clyde	19.4	-0.5
17	2024/07/29	20:42	20.2	2	C	D SPOT	STRZ	-22.9	Miyazaki, Isao	20.7	-0.5
18	2024/07/29	21:39	19.9	2	C	D SPOT	STRZ	-22.6	Akutsu, Tomio	20.7	-0.8
19	2024/08/01	18:16	20.9	2	C	D SPOT	STRZ	-21.5	Einaga, Hideo	22.9	-2.0
20	2024/08/01	19:44	21.4	2	C	D SPOT	STRZ	-22.7	Miyazaki, Isao	22.9	-1.5
21	2024/08/03	20:06	23.3	2	C	D SPOT	STRZ	-22.3	Ota, Satoshi	24.4	-1.1
22	2024/08/03	20:49	23.8	2	C	D SPOT	STRZ	-22.4	Miyazaki, Isao	24.5	-0.7
23	2024/08/06	19:01	25.4	2	C	D SPOT	STRZ	-22.2	Miyazaki, Isao	26.7	-1.3
24	2024/08/08	20:50	27.2	2	C	D SPOT	STRZ	-22.3	Miyazaki, Isao	28.3	-1.1
25	2024/08/10	20:51	29.1	2	C	D SPOT	STRZ	-22.6	Miyazaki, Isao	29.8	-0.7
26	2024/08/11	18:23	29.1	2	C	D SPOT	STRZ	-22.5	Suzuki, Kunihiko	30.5	-1.4
27	2024/08/13	18:19	32.5	2	C	D SPOT	STRZ	-22.6	Suzuki, Kunihiko	32.0	+0.5
28	2024/08/13	19:57	31.7	2	C	D SPOT	STRZ	-22.7	Miyazaki, Isao	32.0	-0.3
29	2024/08/15	11:33	33.5	2	C	D SPOT	STRZ	-22.0	Grafton, Ed	33.3	+0.2
30	2024/08/15	20:11	34.2	2	C	D SPOT	STRZ	-22.6	Einaga, Hideo	33.5	+0.7
31	2024/08/16	18:10	35.3	2	C	D SPOT	STRZ	-21.9	Ito, Satoshi	34.2	+1.1
32	2024/08/18	18:32	37.0	2	C	D SPOT	STRB	-22.9	Suzuki, Kunihiko	35.8	+1.2
33	2024/08/20	20:00	37.8	2	C	D SPOT	STRB	-22.7	Ishibashi, Tsutomu	37.3	+0.5
34	2024/08/20	21:01	38.3	2	C	D SPOT	STRB	-21.9	Go, Christopher	37.4	+0.9
35	2024/08/23	18:12	39.6	2	C	D SPOT	STRB	-22.6	Kanno, Seiichi	39.5	+0.1
36	2024/08/25	19:27	41.3	2	C	D SPOT	STRB	-22.7	Miyazaki, Isao	41.1	+0.2
37	2024/08/27	21:06	42.5	2	C	D SPOT	STRZ	-22.6	Akutsu, Tomio	42.7	-0.2
38	2024/08/28	18:23	42.2	2	C	D SPOT	STRB	-22.3	Miyazaki, Isao	43.3	-1.1
39	2024/08/30	18:42	43.6	2	C	D SPOT	STRB	-22.7	Miyazaki, Isao	44.9	-1.3
40	2024/09/01	21:03	46.4	2	C	D SPOT	STRZ	-22.7	Miyazaki, Isao	46.5	-0.1
41	2024/09/04	18:02	49.3	2	C	D SPOT	STRZ	-21.4	Miyazaki, Isao	48.6	+0.7
42	2024/09/06	19:22	52.4	2	C	D SPOT	STRZ	-19.5	Kumamori, Teruaki	50.2	+2.2