Rotation Period in 2021-22 Apparition(STJ15)

Object	STBn jetstream spot	ID	STJ15

Period	p1	Data Count	15
Rotation Period	9h53m49.5s±2.4s	Refernce Date	2021/08/20
Drift Rate (deg./day)	-2.714±0.058	Refernce Longitude	335.3±0.6
Limiting Date	2021/08/19－2021/09/10	Latitude	-28.0±0.4
Limiting Longitude	335.8－276.0	Wind Velocity (m/sec)	+30.8±0.7

Period	p2	Data Count	26
Rotation Period	9h53m23.5s±4.1s	Refernce Date	2021/08/20
Drift Rate (deg./day)	-3.352±0.100	Refernce Longitude	353.2±1.7
Limiting Date	2021/09/16－2021/10/20	Latitude	-26.5±0.8
Limiting Longitude	257.4－145.1	Wind Velocity (m/sec)	+39.4±1.3

Period	p3	Data Count	7
Rotation Period	9h54m14.0s±6.2s	Refernce Date	2021/08/20
Drift Rate (deg./day)	-2.114±0.152	Refernce Longitude	270.5±0.8
Limiting Date	2021/10/24－2021/11/03	Latitude	-25.7±1.7
Limiting Longitude	133.1－111.6	Wind Velocity (m/sec)	+23.8±2.0

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2021/08/19	14:54	335.8	2	C	D SPOT	STB-N	-28.5	Go, Christopher	336.3	-0.5
2	2021/08/22	12:51	327.7	2	C	D SPOT	STB-N	-28.8	Miyazaki, Isao	328.4	-0.7
3	2021/08/24	12:58	322.6	2	C	D SPOT	STB-N	-28.5	Miyazaki, Isao	322.9	-0.3
4	2021/08/26	15:00	317.1	2	C	D SPOT	STB-N	-28.1	Ota, Satoshi	317.3	-0.2
5	2021/08/28	16:40	311.7	2	C	D SPOT	STB-N	-27.7	Miyazaki, Isao	311.7	0.0
6	2021/08/29	12:13	310.3	2	C	D SPOT	STB-N	-27.9	Miyazaki, Isao	309.4	+0.9
7	2021/08/31	14:02	304.4	2	C	D SPOT	STB-N	-28.1	Miyazaki, Isao	303.8	+0.6
8	2021/09/02	14:49	298.9	2	C	D SPOT	STB-N	-27.8	Ota, Satoshi	298.3	+0.6
9	2021/09/02	16:16	299.4	2	C	D SPOT	STB-N	-27.3	Miyazaki, Isao	298.1	+1.3
10	2021/09/04	16:08	293.0	2	C	D SPOT	STB-N	-28.3	Miyazaki, Isao	292.7	+0.3
11	2021/09/05	13:45	290.1	2	C	D SPOT	STB-N	-27.5	Go, Christopher	290.3	-0.2
12	2021/09/07	14:58	284.6	2	C	D SPOT	STB-N	-27.4	Miyazaki, Isao	284.7	-0.1
13	2021/09/09	15:36	279.1	2	C	D SPOT	STB-N	-27.8	Miyazaki, Isao	279.2	-0.1
14	2021/09/10	10:55	276.3	2	C	D SPOT	STB-N	-27.7	Suzuki, Kunihiko	277.0	-0.7
15	2021/09/10	12:18	276.0	2	C	D SPOT	STB-N	-28.4	Miyazaki, Isao	276.9	-0.9
16	2021/09/16	15:04	257.4	2	C	D SPOT	STB-N	-27.2	Miyazaki, Isao	260.6	-3.2
17	2021/09/17	12:00	255.6	2	C	D SPOT	STB-N	-27.4	Miyazaki, Isao	257.7	-2.1
18	2021/09/19	12:16	249.6	2	C	D SPOT	STB-N	-27.5	Miyazaki, Isao	251.0	-1.4
19	2021/09/21	03:43	244.6	2	C	D SPOT	STB-N	-27.5	Lamy, George	245.5	-0.9
20	2021/09/21	14:05	243.2	2	C	D SPOT	STB-N	-27.6	Miyazaki, Isao	244.0	-0.8
21	2021/09/22	11:08	239.9	2	C	D SPOT	STB-N	-27.0	Miyazaki, Isao	241.1	-1.2
22	2021/09/24	11:50	234.1	2	C	D SPOT	STB-N	-27.2	Miyazaki, Isao	234.3	-0.2
23	2021/09/26	12:06	228.2	2	C	D SPOT	STB-N	-26.9	Go, Christopher	227.5	+0.7
24	2021/09/26	13:35	228.3	2	C	D SPOT	STB-N	-27.6	Miyazaki, Isao	227.3	+1.0
25	2021/09/28	14:44	221.0	2	C	D SPOT	STB-N	-27.1	Miyazaki, Isao	220.5	+0.5
26	2021/09/29	09:39	219.0	2	C	D SPOT	STB-N	-26.7	Ito, Satoshi	217.8	+1.2
27	2021/09/30	15:14	215.9	2	C	D SPOT	STB-N	-26.8	Miyazaki, Isao	213.7	+2.2
28	2021/10/01	12:13	212.9	2	C	D SPOT	STB-N	-26.6	Miyazaki, Isao	210.8	+2.1
29	2021/10/02	17:37	208.6	2	C	D SPOT	STB-N	-25.9	Foster, Clyde	206.6	+2.0
30	2021/10/03	13:27	206.7	2	C	D SPOT	STB-N	-26.5	Miyazaki, Isao	203.9	+2.8
31	2021/10/04	09:31	202.7	2	C	D SPOT	STB-N	-26.4	Suzuki, Kunihiko	201.1	+1.6
32	2021/10/05	13:30	199.7	2	C	D SPOT	STB-N	-26.2	Miyazaki, Isao	197.2	+2.5
33	2021/10/06	10:49	195.6	2	C	D SPOT	STB-N	-26.4	Ito, Satoshi	194.2	+1.4
34	2021/10/08	12:20	187.6	2	C	D SPOT	STB-N	-26.2	Suzuki, Kunihiko	187.3	+0.3
35	2021/10/10	13:07	180.1	2	C	D SPOT	STB-N	-25.7	Ito, Satoshi	180.5	-0.4
36	2021/10/13	11:44	169.7	2	C	D SPOT	STB-N	-25.1	Miyazaki, Isao	170.6	-0.9
37	2021/10/15	12:22	161.9	2	C	D SPOT	STB-N	-26.2	Horiuchi, Tadashi	163.8	-1.9
38	2021/10/15	10:43	163.6	2	C	D SPOT	STB-N	-26.0	Miyazaki, Isao	164.0	-0.4
39	2021/10/18	09:42	152.6	2	C	D SPOT	STB-N	-25.8	Suzuki, Kunihiko	154.1	-1.5
40	2021/10/20	11:13	145.1	2	C	D SPOT	STB-N	-24.5	Go, Christopher	147.2	-2.1
41	2021/10/20	10:19	145.8	2	C	D SPOT	STB-N	-25.2	Ito, Satoshi	147.3	-1.5
42	2021/10/24	12:36	133.1	2	C	D SPOT	STB-N	-25.6	Suzuki, Kunihiko	132.0	+1.1
43	2021/10/25	09:08	129.7	2	C	D SPOT	STB-N	-25.9	Miyazaki, Isao	130.1	-0.4
44	2021/10/27	11:44	125.2	2	C	D SPOT	STB-N	-24.9	Miyazaki, Isao	125.7	-0.5
45	2021/10/29	12:16	120.7	2	C	D SPOT	STB-N	-24.6	Olivetti, Tiziano	121.4	-0.7
46	2021/11/01	09:17	115.5	2	C	D SPOT	STB	-29.5	Miyazaki, Isao	115.3	+0.2
47	2021/11/01	09:17	115.0	2	C	D SPOT	STB-N	-24.9	Miyazaki, Isao	115.3	-0.3
48	2021/11/03	11:21	111.6	2	C	D SPOT	STB-N	-24.8	Ito, Satoshi	110.9	+0.7