메타데이터

항목	값
Designation	296P/Garradd
Type	P
Perihelion (tp_cal, UTC)	2014-03-01T06:43:40.719360Z
Orbit solution date (soln_date, UTC)	2021-07-01T22:13:08Z
Obs used	333
NEO	-
M1	12.800
K1	15.250
PC	0.030

Osculating 궤도요소

항목	값
Epoch (epoch_cal, TDB)	2014-07-21.0000000
e	0.47734904
q (au)	1.830682
a (au)	3.502686
i (deg)	25.203980
Ω (om, deg)	263.676488
ω (w, deg)	350.027681
M (ma, deg)	21.307492

밝기

산란 + 전체 선형

$$ M_a = (12.031 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$

모델 상수

항목	값
H0	12.031
n	6.000
gf	1.000
gb	-0.998
k	1.000
δ90	10.000

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)
2026-05-12 00:00	08:13:11.05	-03:05:04.2	HIP 40087	40.29
2026-05-12 12:00	08:13:36.21	-03:04:36.0	HIP 40523	43.45
2026-05-13 00:00	08:14:01.59	-03:04:09.3	HIP 40523	37.39
2026-05-13 12:00	08:14:27.19	-03:03:44.1	HIP 40521	31.36
2026-05-14 00:00	08:14:53.02	-03:03:20.5	HIP 40521	25.22
2026-05-14 12:00	08:15:19.06	-03:02:58.5	HIP 40521	19.27
2026-05-15 00:00	08:15:45.32	-03:02:38.0	HIP 40521	13.80
2026-05-15 12:00	08:16:11.80	-03:02:19.1	HIP 40521	9.79
2026-05-16 00:00	08:16:38.50	-03:02:01.7	HIP 40521	9.47
2026-05-16 12:00	08:17:05.40	-03:01:46.0	HIP 40521	13.19
2026-05-17 00:00	08:17:32.52	-03:01:31.8	HIP 40521	18.74
2026-05-17 12:00	08:17:59.86	-03:01:19.2	HIP 40732	23.59
2026-05-18 00:00	08:18:27.40	-03:01:08.1	HIP 40732	21.16
2026-05-18 12:00	08:18:55.15	-03:00:58.7	HIP 40732	20.80
2026-05-19 00:00	08:19:23.10	-03:00:50.9	HIP 40732	22.66
2026-05-19 12:00	08:19:51.27	-03:00:44.6	HIP 40874	24.14
2026-05-20 00:00	08:20:19.63	-03:00:40.0	HIP 40961	21.55
2026-05-20 12:00	08:20:48.20	-03:00:37.0	HIP 40961	15.75
2026-05-21 00:00	08:21:16.97	-03:00:35.5	HIP 40961	11.56
2026-05-21 12:00	08:21:45.94	-03:00:35.7	HIP 40961	11.10
2026-05-22 00:00	08:22:15.10	-03:00:37.5	HIP 40961	14.80
2026-05-22 12:00	08:22:44.46	-03:00:40.9	HIP 41169	19.17
2026-05-23 00:00	08:23:14.02	-03:00:45.9	HIP 41169	11.99
2026-05-23 12:00	08:23:43.77	-03:00:52.5	HIP 41169	5.36
2026-05-24 00:00	08:24:13.71	-03:01:00.7	HIP 41169	4.95
2026-05-24 12:00	08:24:43.84	-03:01:10.5	HIP 41192	9.39
2026-05-25 00:00	08:25:14.16	-03:01:21.9	HIP 41192	15.15
2026-05-25 12:00	08:25:44.67	-03:01:35.0	HIP 41379	20.52
2026-05-26 00:00	08:26:15.37	-03:01:49.6	HIP 41379	17.86
2026-05-26 12:00	08:26:46.25	-03:02:05.9	HIP 41379	18.31
2026-05-27 00:00	08:27:17.31	-03:02:23.8	HIP 41379	21.75
2026-05-27 12:00	08:27:48.56	-03:02:43.3	HIP 41446	25.28
2026-05-28 00:00	08:28:19.99	-03:03:04.4	HIP 41665	21.34
2026-05-28 12:00	08:28:51.60	-03:03:27.1	HIP 41665	13.79
2026-05-29 00:00	08:29:23.39	-03:03:51.4	HIP 41665	7.00
2026-05-29 12:00	08:29:55.36	-03:04:17.3	HIP 41665	5.85
2026-05-30 00:00	08:30:27.50	-03:04:44.9	HIP 41665	12.16
2026-05-30 12:00	08:30:59.82	-03:05:14.0	HIP 41665	19.81
2026-05-31 00:00	08:31:32.32	-03:05:44.8	HIP 41901	17.22
2026-05-31 12:00	08:32:04.99	-03:06:17.2	HIP 41901	9.44
2026-06-01 00:00	08:32:37.83	-03:06:51.2	HIP 41901	3.89
2026-06-01 12:00	08:33:10.84	-03:07:26.8	HIP 41901	8.76
2026-06-02 00:00	08:33:44.03	-03:08:04.1	HIP 41991	9.92