메타데이터

항목	값
Designation	202P/Scotti
Type	P
Perihelion (tp_cal, UTC)	2009-02-07T04:49:05.456640Z
Orbit solution date (soln_date, UTC)	2025-03-06T13:42:30Z
Obs used	449
NEO	-
M1	13.900
K1	10.000
PC	-

Osculating 궤도요소

항목	값
Epoch (epoch_cal, TDB)	2007-11-13.0000000
e	0.33043947
q (au)	2.526852
a (au)	3.773896
i (deg)	2.185340
Ω (om, deg)	194.588240
ω (w, deg)	255.594450
M (ma, deg)	299.207436

밝기

산란 + 전체 선형

$$ M_a = (16.098 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$

모델 상수

항목	값
H0	16.098
n	2.000
gf	1.000
gb	-0.975
k	1.000
δ90	9.996

파라미터	기호	범위	설명
태양·지구거리 1 AU에서의 절대등급	H0	-5 to 20	혜성의 고유 밝기
광도 기울기 파라미터	n	2 to 6	태양거리 변화에 따른 밝기 변화율
전방 산란 비대칭 계수	gf	0.8 to 1	전방 산란의 강도
후방 산란 비대칭 계수	gb	-1 to -0.5	후방 산란의 강도
분할 계수	k	0.8 to 1	전·후방 산란 기여도 비율
먼지/가스 밝기 비	δ90	1 to 10	코마에서 먼지 산란 대비 가스 방출의 상대 기여

참고: EPSC-DPS2025-160

천체력

Date/Time (UTC)	RA (J2000)	Dec (J2000)	Nearest HIP	Dist from HIP (arcmin)
2026-07-29 00:00	13:19:55.01	-07:05:29.7	HIP 65107	25.49
2026-07-29 12:00	13:20:12.10	-07:07:14.3	HIP 65107	22.47
2026-07-30 00:00	13:20:29.32	-07:08:59.6	HIP 65107	20.05
2026-07-30 12:00	13:20:46.67	-07:10:45.6	HIP 65107	18.47
2026-07-31 00:00	13:21:04.15	-07:12:32.3	HIP 65107	17.99
2026-07-31 12:00	13:21:21.76	-07:14:19.7	HIP 65107	18.72
2026-08-01 00:00	13:21:39.50	-07:16:07.8	HIP 65107	20.55
2026-08-01 12:00	13:21:57.37	-07:17:56.6	HIP 65107	23.25
2026-08-02 00:00	13:22:15.37	-07:19:46.0	HIP 65107	26.57
2026-08-02 12:00	13:22:33.49	-07:21:36.1	HIP 65107	30.33
2026-08-03 00:00	13:22:51.73	-07:23:26.9	HIP 65107	34.38
2026-08-03 12:00	13:23:10.11	-07:25:18.3	HIP 65491	33.88
2026-08-04 00:00	13:23:28.60	-07:27:10.4	HIP 65491	28.95
2026-08-04 12:00	13:23:47.23	-07:29:03.1	HIP 65491	24.01
2026-08-05 00:00	13:24:05.97	-07:30:56.5	HIP 65491	19.05
2026-08-05 12:00	13:24:24.84	-07:32:50.5	HIP 65491	14.10
2026-08-06 00:00	13:24:43.82	-07:34:45.1	HIP 65491	9.22
2026-08-06 12:00	13:25:02.93	-07:36:40.3	HIP 65491	4.77
2026-08-07 00:00	13:25:22.16	-07:38:36.2	HIP 65491	3.57
2026-08-07 12:00	13:25:41.51	-07:40:32.6	HIP 65491	7.48
2026-08-08 00:00	13:26:00.98	-07:42:29.7	HIP 65491	12.39
2026-08-08 12:00	13:26:20.56	-07:44:27.4	HIP 65491	17.50
2026-08-09 00:00	13:26:40.26	-07:46:25.6	HIP 65491	22.69
2026-08-09 12:00	13:27:00.08	-07:48:24.4	HIP 65712	21.61
2026-08-10 00:00	13:27:20.02	-07:50:23.8	HIP 65712	18.24
2026-08-10 12:00	13:27:40.07	-07:52:23.8	HIP 65712	15.96
2026-08-11 00:00	13:28:00.23	-07:54:24.3	HIP 65712	15.30
2026-08-11 12:00	13:28:20.51	-07:56:25.4	HIP 65712	16.48
2026-08-12 00:00	13:28:40.90	-07:58:27.1	HIP 65712	19.20
2026-08-12 12:00	13:29:01.41	-08:00:29.3	HIP 65712	22.93
2026-08-13 00:00	13:29:22.02	-08:02:32.0	HIP 65928	25.16
2026-08-13 12:00	13:29:42.75	-08:04:35.2	HIP 65928	21.78
2026-08-14 00:00	13:30:03.58	-08:06:39.0	HIP 65928	19.39
2026-08-14 12:00	13:30:24.53	-08:08:43.3	HIP 65963	17.95
2026-08-15 00:00	13:30:45.58	-08:10:48.1	HIP 65963	14.91
2026-08-15 12:00	13:31:06.73	-08:12:53.4	HIP 65963	13.61
2026-08-16 00:00	13:31:28.00	-08:14:59.2	HIP 65963	14.56
2026-08-16 12:00	13:31:49.37	-08:17:05.4	HIP 65963	17.42
2026-08-17 00:00	13:32:10.84	-08:19:12.2	HIP 66115	16.72
2026-08-17 12:00	13:32:32.42	-08:21:19.4	HIP 66115	11.01
2026-08-18 00:00	13:32:54.10	-08:23:27.0	HIP 66115	5.33
2026-08-18 12:00	13:33:15.88	-08:25:35.2	HIP 66115	1.50
2026-08-19 00:00	13:33:37.76	-08:27:43.7	HIP 66137	2.99