메타데이터

항목	값
Designation	272P/NEAT
Type	P
Perihelion (tp_cal, UTC)	2013-03-01T17:20:56.927040Z
Orbit solution date (soln_date, UTC)	2023-02-22T00:13:19Z
Obs used	189
NEO	-
M1	10.700
K1	18.500
PC	0.030

Osculating 궤도요소

항목	값
Epoch (epoch_cal, TDB)	2010-04-10.0000000
e	0.45652880
q (au)	2.416276
a (au)	4.446005
i (deg)	18.188178
Ω (om, deg)	111.515253
ω (w, deg)	26.202307
M (ma, deg)	248.900968

밝기

산란 + 전체 선형

$$ M_a = (16.618 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$

모델 상수

항목	값
H0	16.618
n	2.000
gf	1.000
gb	-1.000
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)
2026-06-01 00:00	20:59:27.76	-22:03:57.5	HIP 103398	36.11
2026-06-01 12:00	20:59:24.43	-22:05:01.5	HIP 103398	35.46
2026-06-02 00:00	20:59:20.94	-22:06:06.2	HIP 103398	34.82
2026-06-02 12:00	20:59:17.29	-22:07:11.5	HIP 103398	34.18
2026-06-03 00:00	20:59:13.47	-22:08:17.5	HIP 103398	33.56
2026-06-03 12:00	20:59:09.49	-22:09:24.2	HIP 103398	32.95
2026-06-04 00:00	20:59:05.34	-22:10:31.4	HIP 103398	32.36
2026-06-04 12:00	20:59:01.03	-22:11:39.4	HIP 103398	31.80
2026-06-05 00:00	20:58:56.56	-22:12:47.9	HIP 103398	31.27
2026-06-05 12:00	20:58:51.93	-22:13:57.1	HIP 103398	30.78
2026-06-06 00:00	20:58:47.14	-22:15:07.0	HIP 103398	30.33
2026-06-06 12:00	20:58:42.18	-22:16:17.4	HIP 103398	29.94
2026-06-07 00:00	20:58:37.06	-22:17:28.5	HIP 103398	29.61
2026-06-07 12:00	20:58:31.78	-22:18:40.2	HIP 103398	29.36
2026-06-08 00:00	20:58:26.34	-22:19:52.5	HIP 103398	29.17
2026-06-08 12:00	20:58:20.74	-22:21:05.4	HIP 103398	29.08
2026-06-09 00:00	20:58:14.98	-22:22:18.9	HIP 103398	29.07
2026-06-09 12:00	20:58:09.05	-22:23:33.0	HIP 103398	29.16
2026-06-10 00:00	20:58:02.97	-22:24:47.6	HIP 103398	29.36
2026-06-10 12:00	20:57:56.73	-22:26:02.9	HIP 103398	29.67
2026-06-11 00:00	20:57:50.32	-22:27:18.7	HIP 103398	30.08
2026-06-11 12:00	20:57:43.76	-22:28:35.2	HIP 103494	29.20
2026-06-12 00:00	20:57:37.04	-22:29:52.1	HIP 103494	28.26
2026-06-12 12:00	20:57:30.17	-22:31:09.7	HIP 103494	27.43
2026-06-13 00:00	20:57:23.13	-22:32:27.7	HIP 103494	26.74
2026-06-13 12:00	20:57:15.94	-22:33:46.4	HIP 103494	26.20
2026-06-14 00:00	20:57:08.59	-22:35:05.5	HIP 103494	25.84
2026-06-14 12:00	20:57:01.09	-22:36:25.2	HIP 103494	25.66
2026-06-15 00:00	20:56:53.43	-22:37:45.4	HIP 103494	25.68
2026-06-15 12:00	20:56:45.62	-22:39:06.1	HIP 103494	25.92
2026-06-16 00:00	20:56:37.66	-22:40:27.4	HIP 103253	24.03
2026-06-16 12:00	20:56:29.54	-22:41:49.1	HIP 103253	21.75
2026-06-17 00:00	20:56:21.27	-22:43:11.3	HIP 103253	19.44
2026-06-17 12:00	20:56:12.85	-22:44:33.9	HIP 103253	17.11
2026-06-18 00:00	20:56:04.29	-22:45:57.1	HIP 103253	14.76
2026-06-18 12:00	20:55:55.57	-22:47:20.7	HIP 103253	12.41
2026-06-19 00:00	20:55:46.71	-22:48:44.8	HIP 103253	10.06
2026-06-19 12:00	20:55:37.69	-22:50:09.3	HIP 103253	7.75
2026-06-20 00:00	20:55:28.54	-22:51:34.2	HIP 103253	5.60
2026-06-20 12:00	20:55:19.24	-22:52:59.6	HIP 103253	3.91
2026-06-21 00:00	20:55:09.79	-22:54:25.3	HIP 103253	3.52
2026-06-21 12:00	20:55:00.21	-22:55:51.5	HIP 103253	4.81
2026-06-22 00:00	20:54:50.48	-22:57:18.1	HIP 103253	6.93