메타데이터
| 항목 |
값 |
| Designation |
C/2003 W1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-11-09T11:06:46.327680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:35Z |
| Obs used |
95 |
| NEO |
- |
| M1 |
16.400 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2003-12-06.0000000 |
| e |
0.93434870 |
| q (au) |
1.652421 |
| a (au) |
25.169668 |
| i (deg) |
78.075971 |
| Ω (om, deg) |
256.742634 |
| ω (w, deg) |
113.288697 |
| M (ma, deg) |
0.207128 |
밝기
산란 + 전체 선형
$$
M_a = (15.601 + 4.976\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.601 |
| n |
4.976 |
| gf |
1.000 |
| gb |
-1.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
08:40:49.94 |
-66:53:10.0 |
HIP 42613 |
4.43 |
| 2026-07-29 12:00 |
08:40:58.56 |
-66:53:11.5 |
HIP 42613 |
4.26 |
| 2026-07-30 00:00 |
08:41:07.18 |
-66:53:13.4 |
HIP 42613 |
4.25 |
| 2026-07-30 12:00 |
08:41:15.81 |
-66:53:15.7 |
HIP 42613 |
4.42 |
| 2026-07-31 00:00 |
08:41:24.43 |
-66:53:18.5 |
HIP 42613 |
4.74 |
| 2026-07-31 12:00 |
08:41:33.05 |
-66:53:21.6 |
HIP 42613 |
5.19 |
| 2026-08-01 00:00 |
08:41:41.67 |
-66:53:25.1 |
HIP 42613 |
5.73 |
| 2026-08-01 12:00 |
08:41:50.29 |
-66:53:29.0 |
HIP 42613 |
6.35 |
| 2026-08-02 00:00 |
08:41:58.91 |
-66:53:33.2 |
HIP 42613 |
7.02 |
| 2026-08-02 12:00 |
08:42:07.53 |
-66:53:37.9 |
HIP 42613 |
7.73 |
| 2026-08-03 00:00 |
08:42:16.14 |
-66:53:43.0 |
HIP 42613 |
8.47 |
| 2026-08-03 12:00 |
08:42:24.75 |
-66:53:48.5 |
HIP 42613 |
9.23 |
| 2026-08-04 00:00 |
08:42:33.36 |
-66:53:54.3 |
HIP 42613 |
10.01 |
| 2026-08-04 12:00 |
08:42:41.96 |
-66:54:00.6 |
HIP 42613 |
10.80 |
| 2026-08-05 00:00 |
08:42:50.56 |
-66:54:07.2 |
HIP 42613 |
11.60 |
| 2026-08-05 12:00 |
08:42:59.16 |
-66:54:14.3 |
HIP 42613 |
12.41 |
| 2026-08-06 00:00 |
08:43:07.75 |
-66:54:21.7 |
HIP 42613 |
13.23 |
| 2026-08-06 12:00 |
08:43:16.33 |
-66:54:29.5 |
HIP 42613 |
14.06 |
| 2026-08-07 00:00 |
08:43:24.91 |
-66:54:37.8 |
HIP 42613 |
14.89 |
| 2026-08-07 12:00 |
08:43:33.48 |
-66:54:46.4 |
HIP 42613 |
15.72 |
| 2026-08-08 00:00 |
08:43:42.05 |
-66:54:55.4 |
HIP 42613 |
16.56 |
| 2026-08-08 12:00 |
08:43:50.61 |
-66:55:04.8 |
HIP 42613 |
17.40 |
| 2026-08-09 00:00 |
08:43:59.15 |
-66:55:14.6 |
HIP 42613 |
18.24 |
| 2026-08-09 12:00 |
08:44:07.70 |
-66:55:24.8 |
HIP 42613 |
19.09 |
| 2026-08-10 00:00 |
08:44:16.23 |
-66:55:35.3 |
HIP 42613 |
19.93 |
| 2026-08-10 12:00 |
08:44:24.75 |
-66:55:46.3 |
HIP 42613 |
20.78 |
| 2026-08-11 00:00 |
08:44:33.26 |
-66:55:57.7 |
HIP 42613 |
21.63 |
| 2026-08-11 12:00 |
08:44:41.76 |
-66:56:09.4 |
HIP 42613 |
22.49 |
| 2026-08-12 00:00 |
08:44:50.25 |
-66:56:21.6 |
HIP 42613 |
23.34 |
| 2026-08-12 12:00 |
08:44:58.73 |
-66:56:34.1 |
HIP 42613 |
24.19 |
| 2026-08-13 00:00 |
08:45:07.20 |
-66:56:47.0 |
HIP 42613 |
25.05 |
| 2026-08-13 12:00 |
08:45:15.65 |
-66:57:00.4 |
HIP 42613 |
25.90 |
| 2026-08-14 00:00 |
08:45:24.10 |
-66:57:14.1 |
HIP 42613 |
26.76 |
| 2026-08-14 12:00 |
08:45:32.52 |
-66:57:28.2 |
HIP 42613 |
27.62 |
| 2026-08-15 00:00 |
08:45:40.94 |
-66:57:42.6 |
HIP 42613 |
28.48 |
| 2026-08-15 12:00 |
08:45:49.34 |
-66:57:57.5 |
HIP 42613 |
29.33 |
| 2026-08-16 00:00 |
08:45:57.72 |
-66:58:12.7 |
HIP 43414 |
29.19 |
| 2026-08-16 12:00 |
08:46:06.09 |
-66:58:28.4 |
HIP 43414 |
28.52 |
| 2026-08-17 00:00 |
08:46:14.44 |
-66:58:44.4 |
HIP 43414 |
27.87 |
| 2026-08-17 12:00 |
08:46:22.78 |
-66:59:00.8 |
HIP 43414 |
27.23 |
| 2026-08-18 00:00 |
08:46:31.10 |
-66:59:17.5 |
HIP 43414 |
26.61 |
| 2026-08-18 12:00 |
08:46:39.40 |
-66:59:34.7 |
HIP 43414 |
26.01 |
| 2026-08-19 00:00 |
08:46:47.68 |
-66:59:52.2 |
HIP 43414 |
25.43 |