메타데이터
| 항목 |
값 |
| Designation |
C/2003 G1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-02-03T15:42:49.510080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:27Z |
| Obs used |
1472 |
| NEO |
- |
| M1 |
6.200 |
| K1 |
9.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2003-08-25.0000000 |
| e |
1.00137916 |
| q (au) |
4.916288 |
| a (au) |
-3564.686955 |
| i (deg) |
66.849308 |
| Ω (om, deg) |
246.088785 |
| ω (w, deg) |
11.422485 |
| M (ma, deg) |
0.000937 |
밝기
산란 + 전체 선형
$$
M_a = (1.546 + 5.811\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
1.546 |
| n |
5.811 |
| 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) |
| 2026-09-20 00:00 |
02:57:08.63 |
+44:34:23.0 |
HIP 13802 |
7.01 |
| 2026-09-20 12:00 |
02:57:06.31 |
+44:34:28.4 |
HIP 13802 |
7.42 |
| 2026-09-21 00:00 |
02:57:03.97 |
+44:34:33.7 |
HIP 13802 |
7.84 |
| 2026-09-21 12:00 |
02:57:01.61 |
+44:34:38.8 |
HIP 13802 |
8.26 |
| 2026-09-22 00:00 |
02:56:59.21 |
+44:34:43.7 |
HIP 13802 |
8.69 |
| 2026-09-22 12:00 |
02:56:56.80 |
+44:34:48.5 |
HIP 13802 |
9.12 |
| 2026-09-23 00:00 |
02:56:54.36 |
+44:34:53.0 |
HIP 13802 |
9.55 |
| 2026-09-23 12:00 |
02:56:51.89 |
+44:34:57.4 |
HIP 13802 |
9.99 |
| 2026-09-24 00:00 |
02:56:49.41 |
+44:35:01.6 |
HIP 13802 |
10.43 |
| 2026-09-24 12:00 |
02:56:46.89 |
+44:35:05.6 |
HIP 13802 |
10.88 |
| 2026-09-25 00:00 |
02:56:44.36 |
+44:35:09.4 |
HIP 13802 |
11.33 |
| 2026-09-25 12:00 |
02:56:41.80 |
+44:35:13.0 |
HIP 13802 |
11.78 |
| 2026-09-26 00:00 |
02:56:39.21 |
+44:35:16.4 |
HIP 13802 |
12.23 |
| 2026-09-26 12:00 |
02:56:36.61 |
+44:35:19.7 |
HIP 13802 |
12.69 |
| 2026-09-27 00:00 |
02:56:33.98 |
+44:35:22.7 |
HIP 13802 |
13.16 |
| 2026-09-27 12:00 |
02:56:31.32 |
+44:35:25.6 |
HIP 13802 |
13.62 |
| 2026-09-28 00:00 |
02:56:28.65 |
+44:35:28.2 |
HIP 13802 |
14.09 |
| 2026-09-28 12:00 |
02:56:25.95 |
+44:35:30.7 |
HIP 13802 |
14.57 |
| 2026-09-29 00:00 |
02:56:23.23 |
+44:35:33.0 |
HIP 13802 |
15.04 |
| 2026-09-29 12:00 |
02:56:20.48 |
+44:35:35.1 |
HIP 13802 |
15.53 |
| 2026-09-30 00:00 |
02:56:17.72 |
+44:35:37.0 |
HIP 13802 |
16.01 |
| 2026-09-30 12:00 |
02:56:14.93 |
+44:35:38.7 |
HIP 13802 |
16.50 |
| 2026-10-01 00:00 |
02:56:12.13 |
+44:35:40.2 |
HIP 13802 |
16.99 |
| 2026-10-01 12:00 |
02:56:09.30 |
+44:35:41.6 |
HIP 13802 |
17.48 |
| 2026-10-02 00:00 |
02:56:06.45 |
+44:35:42.7 |
HIP 13802 |
17.98 |
| 2026-10-02 12:00 |
02:56:03.57 |
+44:35:43.6 |
HIP 13802 |
18.48 |
| 2026-10-03 00:00 |
02:56:00.68 |
+44:35:44.3 |
HIP 13802 |
18.99 |
| 2026-10-03 12:00 |
02:55:57.77 |
+44:35:44.9 |
HIP 13802 |
19.50 |
| 2026-10-04 00:00 |
02:55:54.84 |
+44:35:45.2 |
HIP 13802 |
20.01 |
| 2026-10-04 12:00 |
02:55:51.88 |
+44:35:45.3 |
HIP 13802 |
20.52 |
| 2026-10-05 00:00 |
02:55:48.91 |
+44:35:45.3 |
HIP 13802 |
21.04 |
| 2026-10-05 12:00 |
02:55:45.92 |
+44:35:45.0 |
HIP 13802 |
21.57 |
| 2026-10-06 00:00 |
02:55:42.91 |
+44:35:44.6 |
HIP 13802 |
22.09 |
| 2026-10-06 12:00 |
02:55:39.87 |
+44:35:43.9 |
HIP 13802 |
22.62 |
| 2026-10-07 00:00 |
02:55:36.82 |
+44:35:43.0 |
HIP 13802 |
23.15 |
| 2026-10-07 12:00 |
02:55:33.76 |
+44:35:42.0 |
HIP 13802 |
23.69 |
| 2026-10-08 00:00 |
02:55:30.67 |
+44:35:40.7 |
HIP 13802 |
24.22 |
| 2026-10-08 12:00 |
02:55:27.56 |
+44:35:39.2 |
HIP 13802 |
24.77 |
| 2026-10-09 00:00 |
02:55:24.44 |
+44:35:37.6 |
HIP 13802 |
25.31 |
| 2026-10-09 12:00 |
02:55:21.30 |
+44:35:35.7 |
HIP 13802 |
25.86 |
| 2026-10-10 00:00 |
02:55:18.14 |
+44:35:33.6 |
HIP 13802 |
26.41 |
| 2026-10-10 12:00 |
02:55:14.97 |
+44:35:31.3 |
HIP 13802 |
26.96 |
| 2026-10-11 00:00 |
02:55:11.77 |
+44:35:28.9 |
HIP 13802 |
27.52 |