메타데이터
| 항목 |
값 |
| Designation |
C/2003 H1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-02-22T14:57:51.929280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:29Z |
| Obs used |
1890 |
| NEO |
- |
| M1 |
11.000 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2003-08-30.0000000 |
| e |
0.99915679 |
| q (au) |
2.239626 |
| a (au) |
2656.070310 |
| i (deg) |
138.667213 |
| Ω (om, deg) |
19.000486 |
| ω (w, deg) |
196.139594 |
| M (ma, deg) |
359.998728 |
밝기
산란 + 전체 선형
$$
M_a = (12.871 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.871 |
| n |
2.000 |
| gf |
0.989 |
| gb |
-0.730 |
| k |
0.800 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2003-04-24 |
2004-02-21 |
+3.5205 |
-2.057 |
| 2004-02-23 |
2005-02-07 |
+17.2256 |
-6.015 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
01:51:31.57 |
+04:19:15.2 |
HIP 8605 |
9.71 |
| 2026-05-12 12:00 |
01:51:33.82 |
+04:19:27.4 |
HIP 8605 |
10.28 |
| 2026-05-13 00:00 |
01:51:36.07 |
+04:19:39.5 |
HIP 8605 |
10.85 |
| 2026-05-13 12:00 |
01:51:38.30 |
+04:19:51.6 |
HIP 8605 |
11.42 |
| 2026-05-14 00:00 |
01:51:40.53 |
+04:20:03.5 |
HIP 8605 |
11.99 |
| 2026-05-14 12:00 |
01:51:42.76 |
+04:20:15.4 |
HIP 8605 |
12.56 |
| 2026-05-15 00:00 |
01:51:44.97 |
+04:20:27.1 |
HIP 8668 |
12.82 |
| 2026-05-15 12:00 |
01:51:47.18 |
+04:20:38.8 |
HIP 8668 |
13.09 |
| 2026-05-16 00:00 |
01:51:49.37 |
+04:20:50.4 |
HIP 8668 |
13.38 |
| 2026-05-16 12:00 |
01:51:51.56 |
+04:21:01.9 |
HIP 8668 |
13.68 |
| 2026-05-17 00:00 |
01:51:53.74 |
+04:21:13.4 |
HIP 8668 |
14.00 |
| 2026-05-17 12:00 |
01:51:55.91 |
+04:21:24.7 |
HIP 8668 |
14.34 |
| 2026-05-18 00:00 |
01:51:58.07 |
+04:21:35.9 |
HIP 8668 |
14.68 |
| 2026-05-18 12:00 |
01:52:00.22 |
+04:21:47.1 |
HIP 8668 |
15.04 |
| 2026-05-19 00:00 |
01:52:02.36 |
+04:21:58.1 |
HIP 8668 |
15.41 |
| 2026-05-19 12:00 |
01:52:04.49 |
+04:22:09.1 |
HIP 8668 |
15.79 |
| 2026-05-20 00:00 |
01:52:06.61 |
+04:22:19.9 |
HIP 8668 |
16.17 |
| 2026-05-20 12:00 |
01:52:08.72 |
+04:22:30.7 |
HIP 8668 |
16.57 |
| 2026-05-21 00:00 |
01:52:10.82 |
+04:22:41.3 |
HIP 8668 |
16.97 |
| 2026-05-21 12:00 |
01:52:12.91 |
+04:22:51.9 |
HIP 8668 |
17.37 |
| 2026-05-22 00:00 |
01:52:14.99 |
+04:23:02.4 |
HIP 8668 |
17.78 |
| 2026-05-22 12:00 |
01:52:17.06 |
+04:23:12.8 |
HIP 8668 |
18.20 |
| 2026-05-23 00:00 |
01:52:19.12 |
+04:23:23.1 |
HIP 8765 |
17.87 |
| 2026-05-23 12:00 |
01:52:21.17 |
+04:23:33.2 |
HIP 8765 |
17.51 |
| 2026-05-24 00:00 |
01:52:23.20 |
+04:23:43.3 |
HIP 8765 |
17.17 |
| 2026-05-24 12:00 |
01:52:25.22 |
+04:23:53.3 |
HIP 8765 |
16.84 |
| 2026-05-25 00:00 |
01:52:27.24 |
+04:24:03.2 |
HIP 8765 |
16.53 |
| 2026-05-25 12:00 |
01:52:29.24 |
+04:24:13.0 |
HIP 8765 |
16.22 |
| 2026-05-26 00:00 |
01:52:31.23 |
+04:24:22.6 |
HIP 8765 |
15.93 |
| 2026-05-26 12:00 |
01:52:33.20 |
+04:24:32.2 |
HIP 8765 |
15.66 |
| 2026-05-27 00:00 |
01:52:35.17 |
+04:24:41.7 |
HIP 8765 |
15.40 |
| 2026-05-27 12:00 |
01:52:37.12 |
+04:24:51.0 |
HIP 8765 |
15.16 |
| 2026-05-28 00:00 |
01:52:39.06 |
+04:25:00.3 |
HIP 8765 |
14.93 |
| 2026-05-28 12:00 |
01:52:40.99 |
+04:25:09.5 |
HIP 8765 |
14.72 |
| 2026-05-29 00:00 |
01:52:42.91 |
+04:25:18.5 |
HIP 8765 |
14.52 |
| 2026-05-29 12:00 |
01:52:44.81 |
+04:25:27.5 |
HIP 8765 |
14.34 |
| 2026-05-30 00:00 |
01:52:46.70 |
+04:25:36.3 |
HIP 8765 |
14.18 |
| 2026-05-30 12:00 |
01:52:48.58 |
+04:25:45.1 |
HIP 8765 |
14.03 |
| 2026-05-31 00:00 |
01:52:50.44 |
+04:25:53.7 |
HIP 8765 |
13.90 |
| 2026-05-31 12:00 |
01:52:52.29 |
+04:26:02.2 |
HIP 8765 |
13.79 |
| 2026-06-01 00:00 |
01:52:54.13 |
+04:26:10.7 |
HIP 8765 |
13.70 |
| 2026-06-01 12:00 |
01:52:55.95 |
+04:26:19.0 |
HIP 8765 |
13.63 |
| 2026-06-02 00:00 |
01:52:57.76 |
+04:26:27.2 |
HIP 8765 |
13.57 |