Rotation Period in 2021-22 Apparition(STJ10)

Object	STBn jetstream spot	ID	STJ10

Period	p1	Data Count	8
Rotation Period	9h54m32.0s±7.2s	Refernce Date	2021/08/20
Drift Rate (deg./day)	-1.674±0.174	Refernce Longitude	19.2±0.9
Limiting Date	2021/07/02－2021/07/12	Latitude	-28.9±0.5
Limiting Longitude	99.1－82.3	Wind Velocity (m/sec)	+17.6±2.2

Period	p2	Data Count	22
Rotation Period	9h53m48.8s±3.9s	Refernce Date	2021/08/20
Drift Rate (deg./day)	-2.731±0.096	Refernce Longitude	339.9±1.1
Limiting Date	2021/07/14－2021/08/07	Latitude	-28.0±0.6
Limiting Longitude	76.8－11.5	Wind Velocity (m/sec)	+31.1±1.2

No.	Date	Time	Longitude	Sys.	PCF	Object	Location	Latitude	Observer	Est. Longitude	Error
1	2021/07/02	19:52	98.6	2	C	D SPOT	STB	-29.1	Miyazaki, Isao	99.8	-1.2
2	2021/07/03	04:28	99.1	2	C	D SPOT	STB-N	-29.3	Foster, Clyde	99.2	-0.1
3	2021/07/04	20:22	96.9	2	C	D SPOT	STB-N	-29.2	Miyazaki, Isao	96.4	+0.5
4	2021/07/05	16:19	95.3	2	C	D SPOT	STB-N	-29.2	Miyazaki, Isao	95.0	+0.3
5	2021/07/07	17:16	92.5	2	C	D SPOT	STB-N	-29.3	Miyazaki, Isao	91.6	+0.9
6	2021/07/09	19:13	89.0	2	C	D SPOT	STB-N	-28.7	Miyazaki, Isao	88.1	+0.9
7	2021/07/11	19:29	84.5	2	C	D SPOT	STB-N	-28.8	Miyazaki, Isao	84.8	-0.3
8	2021/07/12	16:06	82.3	2	C	D SPOT	STB-N	-27.9	Horiuchi, Tadashi	83.3	-1.0
9	2021/07/14	18:02	76.8	2	C	D SPOT	STB-N	-28.4	Miyazaki, Isao	78.9	-2.1
10	2021/07/15	03:54	76.1	2	C	D SPOT	STB-N	-28.1	Pellier, Christophe	77.7	-1.6
11	2021/07/16	19:23	72.6	2	C	D SPOT	STB-N	-28.1	Oyamada, Hiroyuki	73.3	-0.7
12	2021/07/17	15:00	70.9	2	C	D SPOT	STB-N	-28.6	Suzuki, Kunihiko	71.0	-0.1
13	2021/07/17	16:17	70.3	2	C	D SPOT	STB-N	-28.1	Ito, Satoshi	70.9	-0.6
14	2021/07/19	17:15	65.8	2	C	D SPOT	STB-N	-28.6	Suzuki, Kunihiko	65.3	+0.5
15	2021/07/21	18:20	60.2	2	C	D SPOT	STB-N	-28.3	Ishibashi, Tsutomu	59.7	+0.5
16	2021/07/22	13:52	58.5	2	C	D SPOT	STB-N	-28.9	Suzuki, Kunihiko	57.5	+1.0
17	2021/07/24	15:11	53.4	2	C	D SPOT	STB-N	-28.4	Ishibashi, Tsutomu	51.9	+1.5
18	2021/07/26	15:55	47.2	2	C	D SPOT	STB-N	-28.2	Kumamori, Teruaki	46.3	+0.9
19	2021/07/26	16:42	47.7	2	C	D SPOT	STB-N	-28.1	Go, Christopher	46.2	+1.5
20	2021/07/27	21:21	44.7	2	C	D SPOT	STB-N	-28.0	Foster, Clyde	43.0	+1.7
21	2021/07/28	18:02	41.7	2	C	D SPOT	STB-N	-27.8	Miyazaki, Isao	40.6	+1.1
22	2021/07/29	14:22	38.6	2	C	D SPOT	STB-N	-28.1	Kumamori, Teruaki	38.3	+0.3
23	2021/07/30	19:17	35.3	2	C	D SPOT	STB-N	-28.1	Miyazaki, Isao	35.0	+0.3
24	2021/07/31	15:43	33.1	2	C	D SPOT	STB-N	-27.6	Kumamori, Teruaki	32.7	+0.4
25	2021/08/02	16:21	27.3	2	C	D SPOT	STB-N	-27.6	Suzuki, Kunihiko	27.2	+0.1
26	2021/08/03	13:39	24.1	2	C	D SPOT	STB-N	-27.2	Ito, Satoshi	24.7	-0.6
27	2021/08/04	17:37	21.3	2	C	D SPOT	STB-N	-28.0	Kumamori, Teruaki	21.6	-0.3
28	2021/08/05	15:14	19.1	2	C	D SPOT	STB-N	-26.7	Suzuki, Kunihiko	19.1	0.0
29	2021/08/07	14:59	12.0	2	C	D SPOT	STB-N	-27.3	Horiuchi, Tadashi	13.7	-1.7
30	2021/08/07	15:48	11.5	2	C	D SPOT	STB-N	-26.8	Go, Christopher	13.6	-2.1