Rotation Period in 2021-22 Apparition(SEJ20)

Object	SEBs retrograding ring	ID	SEJ20

Period	p1	Data Count	51
Rotation Period	9h58m18.7s±1.4s	Refernce Date	2021/08/20
Drift Rate (deg./day)	+3.833±0.034	Refernce Longitude	77.3±1.2
Limiting Date	2021/05/14－2021/07/23	Latitude	-20.4±0.6
Limiting Longitude	67.3－333.4	Wind Velocity (m/sec)	-55.2±0.5

Period	p2	Data Count	10
Rotation Period	9h56m28.3s±15.5s	Refernce Date	2021/08/20
Drift Rate (deg./day)	+1.158±0.377	Refernce Longitude	9.3±1.9
Limiting Date	2021/07/26－2021/08/05	Latitude	-20.8±1.8
Limiting Longitude	341.6－356.1	Wind Velocity (m/sec)	-19.1±5.1

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2021/05/14	21:29	67.3	2	C	D PROJ	SEB-S	-21.0	Olivetti, Tiziano	65.1	+2.2
2	2021/05/15	19:02	67.8	2	C	D SPOT	SEB-S	-21.3	Suzuki, Kunihiko	68.6	-0.8
3	2021/05/17	20:11	75.5	2	C	D SPOT	SEB-S	-19.9	Miyazaki, Isao	76.4	-0.9
4	2021/05/17	21:06	76.0	2	C	D SPOT	SEB-S	-19.6	Go, Christopher	76.6	-0.6
5	2021/05/22	20:57	96.7	2	C	D SPOT	SEB-S	-19.7	Go, Christopher	95.7	+1.0
6	2021/05/24	20:25	104.3	2	C	D SPOT	SEB-S	-20.5	Miyazaki, Isao	103.3	+1.0
7	2021/05/24	21:08	105.0	2	C	D SPOT	SEB-S	-20.1	Go, Christopher	103.4	+1.6
8	2021/05/27	20:15	113.5	2	C	D SPOT	SEB-S	-20.1	Go, Christopher	114.8	-1.3
9	2021/05/29	21:27	121.3	2	C	D SPOT	SEB-S	-21.0	Olivetti, Tiziano	122.6	-1.3
10	2021/05/29	19:43	120.1	2	C	D SPOT	SEB-S	-19.5	Kumamori, Teruaki	122.3	-2.2
11	2021/05/30	18:37	126.4	2	C	D PROJ	SEB-S	-20.6	Akutsu, Tomio	126.0	+0.4
12	2021/06/01	18:29	132.4	2	C	D SPOT	SEB-S	-20.3	Wesley, Anthony	133.6	-1.2
13	2021/06/03	19:42	140.3	2	C	D SPOT	SEB-S	-19.8	Go, Christopher	141.5	-1.2
14	2021/06/05	02:30	145.8	2	C	D SPOT	SEB-S	-20.4	Foster, Clyde	146.4	-0.6
15	2021/06/11	18:35	171.9	2	C	D SPOT	SEB-S	-20.7	Miyazaki, Isao	172.0	-0.1
16	2021/06/11	18:16	169.7	2	C	D PROJ	SEB-S		Horikawa, Kuniaki	171.9	-2.2
17	2021/06/12	03:15	172.8	2	C	D SPOT	SEB-S	-20.6	Foster, Clyde	173.4	-0.6
18	2021/06/16	18:08	191.6	2	C	D SPOT	SEB-S	-20.8	Ohsugi, Tadao	191.1	+0.5
19	2021/06/16	19:00	192.4	2	C	D SPOT	SEB-S	-20.6	Go, Christopher	191.2	+1.2
20	2021/06/18	19:22	200.1	2	C	D SPOT	SEB-S	-19.8	Miyazaki, Isao	198.9	+1.2
21	2021/06/18	20:40	199.4	2	C	D SPOT	SEB-S	-20.5	Olivetti, Tiziano	199.1	+0.3
22	2021/06/21	18:27	212.4	2	C	D SPOT	SEB-S	-19.5	Akutsu, Tomio	210.3	+2.1
23	2021/06/23	18:51	219.9	2	C	D SPOT	SEB-S	-20.5	Miyazaki, Isao	218.0	+1.9
24	2021/06/25	20:33	226.8	2	C	D SPOT	SEB-S	-20.1	Olivetti, Tiziano	226.0	+0.8
25	2021/06/26	17:48	231.1	2	C	D SPOT	SEB-S	-20.5	Miyazaki, Isao	229.4	+1.7
26	2021/06/27	04:27	231.8	2	C	D SPOT	SEB-S	-20.5	Foster, Clyde	231.1	+0.7
27	2021/06/28	18:47	238.8	2	C	D SPOT	SEB-S	-20.2	Go, Christopher	237.2	+1.6
28	2021/06/29	03:49	238.9	2	C	D SPOT	SEB-S	-21.0	Foster, Clyde	238.6	+0.3
29	2021/07/03	18:31	258.0	2	C	D SPOT	SEB-S	-21.0	Miyazaki, Isao	256.3	+1.7
30	2021/07/04	03:26	257.2	2	C	D PROJ	SEB-S	-21.1	Foster, Clyde	257.7	-0.5
31	2021/07/05	20:29	263.6	2	C	D PROJ	SEB-S	-22.4	Miyazaki, Isao	264.3	-0.7
32	2021/07/06	17:30	265.8	2	C	D SPOT	SEB-S	-20.5	Miyazaki, Isao	267.6	-1.8
33	2021/07/08	17:29	274.6	2	C	D SPOT	SEB-S	-20.5	Miyazaki, Isao	275.3	-0.7
34	2021/07/09	03:14	275.3	2	C	D PROJ	SEB-S	-21.1	Foster, Clyde	276.9	-1.6
35	2021/07/10	19:04	283.0	2	C	D SPOT	SEB-S	-20.5	Miyazaki, Isao	283.2	-0.2
36	2021/07/11	16:17	286.6	2	C	D SPOT	SEB-S	-19.7	Ishibashi, Tsutomu	286.6	0.0
37	2021/07/11	17:31	285.6	2	C	D SPOT	SEB-S	-19.6	Kumamori, Teruaki	286.8	-1.2
38	2021/07/13	16:45	294.0	2	C	D SPOT	SEB-S	-20.2	Kumamori, Teruaki	294.3	-0.3
39	2021/07/13	17:58	294.3	2	C	D SPOT	SEB-S	-20.0	Miyazaki, Isao	294.5	-0.2
40	2021/07/16	15:30	305.7	2	C	D SPOT	SEB-S	-20.5	Suzuki, Kunihiko	305.6	+0.1
41	2021/07/16	16:33	306.0	2	C	D SPOT	SEB-S	-20.0	Ishibashi, Tsutomu	305.8	+0.2
42	2021/07/16	15:51	304.2	2	C	D PROJ	SEB-S		Horikawa, Kuniaki	305.7	-1.5
43	2021/07/18	16:32	314.2	2	C	D SPOT	SEB-S	-20.2	Ito, Satoshi	313.5	+0.7
44	2021/07/18	18:20	313.9	2	C	D SPOT	SEB-S	-20.3	Kumamori, Teruaki	313.8	+0.1
45	2021/07/18	18:58	314.7	2	C	D PROJ	SEB-S	-21.1	Miyazaki, Isao	313.9	+0.8
46	2021/07/19	14:15	317.9	2	C	D SPOT	SEB-S	-20.2	Ishibashi, Tsutomu	316.9	+1.0
47	2021/07/20	19:03	322.6	2	C	D SPOT	SEB-S	-20.9	Ishibashi, Tsutomu	321.5	+1.1
48	2021/07/21	15:51	324.9	2	C	D SPOT	SEB-S	-21.0	Suzuki, Kunihiko	324.9	0.0
49	2021/07/21	16:51	323.9	2	C	D SPOT	SEB-S	-20.8	Ishibashi, Tsutomu	325.0	-1.1
50	2021/07/21	15:29	322.9	2	C	D PROJ	SEB-S		Horikawa, Kuniaki	324.8	-1.9
51	2021/07/23	18:06	333.4	2	C	D SPOT	SEB-S	-20.1	Suzuki, Kunihiko	332.9	+0.5
52	2021/07/26	14:38	341.7	2	C	D SPOT	SEB-S	-21.3	Akutsu, Hiroaki	341.0	+0.7
53	2021/07/26	15:55	341.6	2	C	D SPOT	SEB-S	-21.3	Kumamori, Teruaki	341.1	+0.5
54	2021/07/27	21:21	343.8	2	C	D SPOT	SEB-S	-21.5	Foster, Clyde	342.5	+1.3
55	2021/07/28	17:15	344.7	2	C	D SPOT	SEB-S	-21.5	Miyazaki, Isao	343.5	+1.2
56	2021/07/29	13:10	343.2	2	C	D PROJ	SEB-S	-21.4	Miyazaki, Isao	344.4	-1.2
57	2021/07/30	18:02	343.9	2	C	D SPOT	STRZ	-21.9	Miyazaki, Isao	345.8	-1.9
58	2021/07/31	14:05	345.7	2	C	D SPOT	STRZ	-22.6	Suzuki, Kunihiko	346.8	-1.1
59	2021/08/02	16:21	347.1	2	C	D SPOT	SEB-S	-21.0	Suzuki, Kunihiko	349.2	-2.1
60	2021/08/04	17:37	350.8	2	C	D SPOT	SEB-S	-19.1	Kumamori, Teruaki	351.6	-0.8
61	2021/08/05	13:12	356.1	2	C	D SPOT	SEB-S	-16.3	Suzuki, Kunihiko	352.5	+3.6