Rotation Period in 2024-25 Apparition(NND6)

Object	NNTZ dark spot	ID	NND6

Period	p1	Data Count	11
Rotation Period	9h55m15.3s±3.8s	Refernce Date	2024/12/07
Drift Rate (deg./day)	-0.618±0.092	Refernce Longitude	152.8±1.1
Limiting Date	2025/01/13－2025/02/06	Latitude	+41.3±0.5
Limiting Longitude	130.2－116.0	Wind Velocity (m/sec)	+3.7±1.0

Period	p2	Data Count	18
Rotation Period	9h55m51.0s±1.2s	Refernce Date	2024/12/07
Drift Rate (deg./day)	+0.252±0.029	Refernce Longitude	101.3±1.0
Limiting Date	2025/02/09－2025/04/15	Latitude	+40.3±0.4
Limiting Longitude	117.2－132.8	Wind Velocity (m/sec)	-5.6±0.3

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2025/01/13	13:41	130.2	2	C	D SPOT	NNTZ	+41.3	Miyazaki, Isao	129.6	+0.6
2	2025/01/18	11:56	126.8	2	C	D SPOT	NNTZ	+41.3	Go, Christopher	126.6	+0.2
3	2025/01/20	14:41	127.4	2	C	D SPOT	NNTB	+40.3	Miyazaki, Isao	125.3	+2.1
4	2025/01/21	10:30	124.1	2	C	D SPOT	NNTZ	+41.0	Miyazaki, Isao	124.7	-0.6
5	2025/01/22	15:03	123.6	2	C	D SPOT	NNTZ	+42.2	Ito, Satoshi	124.0	-0.4
6	2025/01/23	12:50	123.2	2	C	D SPOT	NNTZ	+41.6	Horiuchi, Tadashi	123.5	-0.3
7	2025/01/23	11:10	122.6	2	C	D SPOT	NNTZ	+41.9	Ishibashi, Tsutomu	123.5	-0.9
8	2025/01/25	13:16	120.9	2	C	D SPOT	NNTZ	+41.3	Miyazaki, Isao	122.2	-1.3
9	2025/01/30	12:25	118.1	2	C	D SPOT	NNTZ	+41.1	Miyazaki, Isao	119.1	-1.0
10	2025/02/04	11:02	116.5	2	C	D SPOT	NNTZ	+41.2	Go, Christopher	116.1	+0.4
11	2025/02/06	12:19	116.0	2	C	D SPOT	NNTZ	+41.5	Olivetti, Tiziano	114.8	+1.2
12	2025/02/09	11:10	117.6	2	C	D SPOT	NNTZ	+40.3	Miyazaki, Isao	117.6	0.0
13	2025/02/11	11:59	118.3	2	C	D SPOT	NNTB	+40.6	Ito, Satoshi	118.1	+0.2
14	2025/02/11	12:44	118.0	2	C	D SPOT	NNTB	+40.0	Miyazaki, Isao	118.1	-0.1
15	2025/02/14	10:27	117.2	2	C	D SPOT	NNTB	+39.8	Ito, Satoshi	118.8	-1.6
16	2025/02/17	17:35	118.3	2	C	D SPOT	NNTZ	+40.5	Dauvergne, Jean-Luc	119.7	-1.4
17	2025/03/01	18:17	123.1	2	C	D SPOT	NNTZ	+40.2	Pellier, Christophe	122.7	+0.4
18	2025/03/05	19:39	124.1	2	C	D SPOT	NNTZ	+40.4	Pellier, Christophe	123.7	+0.4
19	2025/03/10	08:57	125.8	2	C	D SPOT	NNTZ	+40.8	Suzuki, Kunihiko	124.9	+0.9
20	2025/03/12	11:32	126.5	2	C	D SPOT	NNTZ	+40.7	Miyazaki, Isao	125.4	+1.1
21	2025/03/15	18:46	127.2	2	C	D SPOT	NNTZ	+41.0	Foster, Clyde	126.3	+0.9
22	2025/03/17	10:48	127.2	2	C	D SPOT	NNTZ	+40.6	Go, Christopher	126.7	+0.5
23	2025/03/22	10:11	128.5	2	C	D SPOT	NNTZ	+39.6	Miyazaki, Isao	127.9	+0.6
24	2025/03/24	11:08	128.8	2	C	D SPOT	NNTZ	+40.0	Miyazaki, Isao	128.4	+0.4
25	2025/03/27	10:03	129.2	2	C	D SPOT	NNTB	+39.7	Miyazaki, Isao	129.2	0.0
26	2025/03/27	18:50	130.4	2	C	D SPOT	NNTZ	+40.2	Pellier, Christophe	129.3	+1.1
27	2025/04/03	10:03	130.6	2	C	D SPOT	NNTZ	+40.5	Miyazaki, Isao	131.0	-0.4
28	2025/04/08	10:09	130.4	2	C	D SPOT	NNTZ	+40.1	Miyazaki, Isao	132.2	-1.8
29	2025/04/15	10:19	132.8	2	C	D SPOT	NNTZ	+40.2	Miyazaki, Isao	134.0	-1.2