Rotation Period in 2021-22 Apparition(STJ18)

Object	STBn jetstream spot	ID	STJ18

Period	p1	Data Count	16
Rotation Period	9h53m51.6s±4.7s	Refernce Date	2021/08/20
Drift Rate (deg./day)	-2.663±0.114	Refernce Longitude	351.5±1.0
Limiting Date	2021/08/28－2021/09/14	Latitude	-27.1±0.7
Limiting Longitude	327.2－281.5	Wind Velocity (m/sec)	+30.5±1.4

Period	p2	Data Count	48
Rotation Period	9h53m24.1s±1.4s	Refernce Date	2021/08/20
Drift Rate (deg./day)	-3.336±0.033	Refernce Longitude	10.2±0.9
Limiting Date	2021/09/16－2021/11/08	Latitude	-26.4±0.6
Limiting Longitude	276.2－101.3	Wind Velocity (m/sec)	+39.3±0.4

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2021/08/28	16:40	327.2	2	C	D SPOT	STB-N	-29.2	Miyazaki, Isao	328.4	-1.2
2	2021/08/29	12:13	326.1	2	C	D SPOT	STB-N	-28.0	Miyazaki, Isao	326.2	-0.1
3	2021/08/29	13:23	325.4	2	C	D SPOT	STB-N	-27.8	Akutsu, Tomio	326.1	-0.7
4	2021/08/30	18:52	321.7	2	C	D SPOT	STB-N	-27.2	Foster, Clyde	322.8	-1.1
5	2021/08/31	14:02	320.5	2	C	D SPOT	STB-N	-27.6	Miyazaki, Isao	320.7	-0.2
6	2021/09/02	14:49	315.1	2	C	D SPOT	STB-N	-27.1	Ota, Satoshi	315.3	-0.2
7	2021/09/02	16:16	316.2	2	C	D SPOT	STB-N	-26.8	Miyazaki, Isao	315.1	+1.1
8	2021/09/03	12:21	313.7	2	C	D SPOT	STB-N	-26.9	Miyazaki, Isao	312.9	+0.8
9	2021/09/04	16:08	311.0	2	C	D SPOT	STB-N	-27.0	Miyazaki, Isao	309.8	+1.2
10	2021/09/05	13:45	308.2	2	C	D SPOT	STB-N	-26.9	Go, Christopher	307.4	+0.8
11	2021/09/07	14:58	303.1	2	C	D SPOT	STB-N	-26.4	Miyazaki, Isao	301.9	+1.2
12	2021/09/09	15:36	297.5	2	C	D SPOT	STB-N	-26.3	Miyazaki, Isao	296.5	+1.0
13	2021/09/10	10:55	294.2	2	C	D SPOT	STB-N	-26.6	Suzuki, Kunihiko	294.4	-0.2
14	2021/09/10	12:18	293.9	2	C	D SPOT	STB-N	-26.9	Miyazaki, Isao	294.2	-0.3
15	2021/09/12	12:25	288.3	2	C	D SPOT	STB-N	-27.2	Miyazaki, Isao	288.9	-0.6
16	2021/09/14	15:12	281.5	2	C	D SPOT	STB-N	-26.3	Miyazaki, Isao	283.2	-1.7
17	2021/09/16	15:04	276.2	2	C	D SPOT	STB-N	-26.3	Miyazaki, Isao	278.0	-1.8
18	2021/09/17	12:00	273.7	2	C	D SPOT	STB-N	-26.9	Miyazaki, Isao	275.1	-1.4
19	2021/09/17	13:17	273.2	2	C	D SPOT	STB-N	-25.5	Go, Christopher	274.9	-1.7
20	2021/09/19	12:16	267.8	2	C	D SPOT	STB-N	-26.8	Miyazaki, Isao	268.4	-0.6
21	2021/09/20	09:34	264.4	2	C	D SPOT	STB-N	-26.7	Suzuki, Kunihiko	265.4	-1.0
22	2021/09/21	03:43	262.5	2	C	D SPOT	STB-N	-27.2	Lamy, George	262.9	-0.4
23	2021/09/21	14:05	260.7	2	C	D SPOT	STB-N	-26.8	Miyazaki, Isao	261.4	-0.7
24	2021/09/22	11:08	257.9	2	C	D SPOT	STB-N	-26.2	Miyazaki, Isao	258.5	-0.6
25	2021/09/24	11:50	251.7	2	C	D SPOT	STB-N	-25.9	Miyazaki, Isao	251.7	0.0
26	2021/09/26	12:06	245.7	2	C	D SPOT	STB-N	-26.0	Go, Christopher	245.0	+0.7
27	2021/09/26	13:35	245.6	2	C	D SPOT	STB-N	-26.6	Miyazaki, Isao	244.8	+0.8
28	2021/09/27	09:33	242.3	2	C	D SPOT	STB-N	-26.5	Suzuki, Kunihiko	242.0	+0.3
29	2021/09/27	10:34	242.5	2	C	D SPOT	STB-N	-26.6	Ishibashi, Tsutomu	241.9	+0.6
30	2021/09/28	14:44	238.5	2	C	D SPOT	STB-N	-27.0	Miyazaki, Isao	238.0	+0.5
31	2021/09/29	11:06	235.7	2	C	D SPOT	STB-N	-26.5	Ito, Satoshi	235.2	+0.5
32	2021/09/30	15:14	231.2	2	C	D SPOT	STB-N	-27.2	Miyazaki, Isao	231.2	0.0
33	2021/09/30	15:14	232.4	2	C	D SPOT	STB-N	-26.1	Miyazaki, Isao	231.2	+1.2
34	2021/10/01	12:13	229.6	2	C	D SPOT	STB-N	-26.3	Miyazaki, Isao	228.3	+1.3
35	2021/10/02	17:37	224.7	2	C	D SPOT	STB-N	-26.0	Foster, Clyde	224.2	+0.5
36	2021/10/03	13:27	220.9	2	C	D SPOT	STB-N	-27.5	Miyazaki, Isao	221.5	-0.6
37	2021/10/04	09:31	219.9	2	C	D SPOT	STB-N	-26.8	Suzuki, Kunihiko	218.7	+1.2
38	2021/10/06	10:49	213.8	2	C	D SPOT	STB-N	-26.0	Ito, Satoshi	211.8	+2.0
39	2021/10/08	12:20	205.9	2	C	D SPOT	STB-N	-26.7	Suzuki, Kunihiko	205.0	+0.9
40	2021/10/08	13:37	205.2	2	C	D SPOT	STB-N	-26.5	Miyazaki, Isao	204.8	+0.4
41	2021/10/10	13:07	199.0	2	C	D SPOT	STB-N	-26.8	Ito, Satoshi	198.2	+0.8
42	2021/10/10	14:29	197.9	2	C	D SPOT	STB-N	-26.3	Miyazaki, Isao	198.0	-0.1
43	2021/10/11	10:11	195.6	2	C	D SPOT	STB-N	-26.2	Ishibashi, Tsutomu	195.2	+0.4
44	2021/10/13	11:44	189.0	2	C	D SPOT	STB-N	-26.2	Miyazaki, Isao	188.4	+0.6
45	2021/10/14	17:45	183.5	2	C	D SPOT	STB-N	-26.7	Foster, Clyde	184.2	-0.7
46	2021/10/15	12:22	181.7	2	C	D SPOT	STB-N	-26.7	Horiuchi, Tadashi	181.6	+0.1
47	2021/10/16	17:52	177.1	2	C	D SPOT	STB-N	-26.4	Foster, Clyde	177.5	-0.4
48	2021/10/17	12:52	176.1	2	C	D SPOT	STB-N	-27.0	Miyazaki, Isao	174.9	+1.2
49	2021/10/18	09:42	171.7	2	C	D SPOT	STB-N	-27.3	Suzuki, Kunihiko	172.0	-0.3
50	2021/10/18	11:02	171.4	2	C	D SPOT	STB-N	-26.2	Go, Christopher	171.8	-0.4
51	2021/10/20	10:19	166.3	2	C	D SPOT	STB-N	-26.4	Ito, Satoshi	165.2	+1.1
52	2021/10/20	11:13	164.5	2	C	D SPOT	STB-N	-25.8	Go, Christopher	165.1	-0.6
53	2021/10/23	08:33	155.9	2	C	D SPOT	STB-N	-26.5	Ito, Satoshi	155.4	+0.5
54	2021/10/23	09:22	155.5	2	C	D SPOT	STB-N	-26.3	Kumamori, Teruaki	155.3	+0.2
55	2021/10/25	09:08	149.6	2	C	D SPOT	STB-N	-26.5	Miyazaki, Isao	148.7	+0.9
56	2021/10/27	10:20	142.8	2	C	D SPOT	STB-N	-25.5	Miyazaki, Isao	141.8	+1.0
57	2021/10/29	12:16	134.4	2	C	D SPOT	STB-N	-25.7	Olivetti, Tiziano	134.9	-0.5
58	2021/10/30	08:29	131.9	2	C	D SPOT	STB-N	-26.0	Suzuki, Kunihiko	132.1	-0.2
59	2021/10/30	09:48	130.7	2	C	D SPOT	STB-N	-25.9	Ito, Satoshi	131.9	-1.2
60	2021/10/30	18:17	130.1	2	C	D SPOT	STB-N	-26.3	Foster, Clyde	130.7	-0.6
61	2021/11/01	00:00	125.6	2	C	D SPOT	STB-N	-25.5	Lamy, George	126.6	-1.0
62	2021/11/01	09:17	124.1	2	C	D SPOT	STB-N	-26.1	Miyazaki, Isao	125.3	-1.2
63	2021/11/03	11:21	117.2	2	C	D SPOT	STB-N	-25.9	Ito, Satoshi	118.3	-1.1
64	2021/11/08	10:49	101.3	2	C	D SPOT	STB-N	-24.4	Go, Christopher	101.7	-0.4