메타데이터

항목	값
Designation	216P/LINEAR
Type	P
Perihelion (tp_cal, UTC)	2016-05-30T22:32:33.506880Z
Orbit solution date (soln_date, UTC)	2024-07-07T00:42:15Z
Obs used	403
NEO	-
M1	10.700
K1	21.750
PC	0.030

Osculating 궤도요소

항목	값
Epoch (epoch_cal, TDB)	2017-04-30.0000000
e	0.44545351
q (au)	2.148896
a (au)	3.875051
i (deg)	9.046729
Ω (om, deg)	359.865529
ω (w, deg)	151.513702
M (ma, deg)	43.163177

밝기

산란 + 전체 선형

$$ M_a = (12.693 + 5.566\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$

모델 상수

항목	값
H0	12.693
n	5.566
gf	1.000
gb	-0.943
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)
2026-07-29 00:00	20:41:44.23	-27:45:28.3	HIP 102108	14.42
2026-07-29 12:00	20:41:23.87	-27:46:25.1	HIP 102108	13.44
2026-07-30 00:00	20:41:03.51	-27:47:21.2	HIP 102030	13.66
2026-07-30 12:00	20:40:43.15	-27:48:16.4	HIP 101976	11.69
2026-07-31 00:00	20:40:22.80	-27:49:10.9	HIP 101976	8.55
2026-07-31 12:00	20:40:02.45	-27:50:04.6	HIP 101976	7.19
2026-08-01 00:00	20:39:42.10	-27:50:57.5	HIP 101976	8.49
2026-08-01 12:00	20:39:21.77	-27:51:49.6	HIP 101976	11.59
2026-08-02 00:00	20:39:01.46	-27:52:40.9	HIP 101976	15.43
2026-08-02 12:00	20:38:41.16	-27:53:31.3	HIP 101976	19.57
2026-08-03 00:00	20:38:20.89	-27:54:20.9	HIP 101976	23.86
2026-08-03 12:00	20:38:00.64	-27:55:09.6	HIP 101976	28.22
2026-08-04 00:00	20:37:40.42	-27:55:57.5	HIP 101610	28.25
2026-08-04 12:00	20:37:20.23	-27:56:44.6	HIP 101610	23.73
2026-08-05 00:00	20:37:00.08	-27:57:30.7	HIP 101610	19.23
2026-08-05 12:00	20:36:39.96	-27:58:16.0	HIP 101610	14.75
2026-08-06 00:00	20:36:19.89	-27:59:00.4	HIP 101610	10.31
2026-08-06 12:00	20:35:59.85	-27:59:43.9	HIP 101610	5.94
2026-08-07 00:00	20:35:39.87	-28:00:26.5	HIP 101610	2.12
2026-08-07 12:00	20:35:19.94	-28:01:08.2	HIP 101610	3.67
2026-08-08 00:00	20:35:00.06	-28:01:49.0	HIP 101610	7.87
2026-08-08 12:00	20:34:40.24	-28:02:28.9	HIP 101610	12.22
2026-08-09 00:00	20:34:20.48	-28:03:07.8	HIP 101610	16.59
2026-08-09 12:00	20:34:00.79	-28:03:45.9	HIP 101610	20.96
2026-08-10 00:00	20:33:41.16	-28:04:22.9	HIP 101610	25.32
2026-08-10 12:00	20:33:21.60	-28:04:59.1	HIP 101283	21.08
2026-08-11 00:00	20:33:02.12	-28:05:34.3	HIP 101283	16.82
2026-08-11 12:00	20:32:42.72	-28:06:08.5	HIP 101283	12.62
2026-08-12 00:00	20:32:23.39	-28:06:41.8	HIP 101283	8.55
2026-08-12 12:00	20:32:04.15	-28:07:14.1	HIP 101283	4.89
2026-08-13 00:00	20:31:45.00	-28:07:45.4	HIP 101283	3.36
2026-08-13 12:00	20:31:25.94	-28:08:15.8	HIP 101283	5.88
2026-08-14 00:00	20:31:06.97	-28:08:45.2	HIP 101283	9.65
2026-08-14 12:00	20:30:48.10	-28:09:13.6	HIP 101283	13.66
2026-08-15 00:00	20:30:29.32	-28:09:41.1	HIP 101283	17.72
2026-08-15 12:00	20:30:10.65	-28:10:07.5	HIP 101242	21.30
2026-08-16 00:00	20:29:52.09	-28:10:33.0	HIP 101242	24.02
2026-08-16 12:00	20:29:33.64	-28:10:57.5	HIP 100935	22.19
2026-08-17 00:00	20:29:15.29	-28:11:20.9	HIP 100935	18.16
2026-08-17 12:00	20:28:57.06	-28:11:43.4	HIP 100935	14.19
2026-08-18 00:00	20:28:38.95	-28:12:04.9	HIP 100935	10.28
2026-08-18 12:00	20:28:20.96	-28:12:25.5	HIP 100935	6.54
2026-08-19 00:00	20:28:03.09	-28:12:45.0	HIP 100935	3.39