메타데이터
| 항목 |
값 |
| Designation |
C/2003 T2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-11-14T00:39:55.854720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:34Z |
| Obs used |
442 |
| NEO |
- |
| M1 |
10.400 |
| K1 |
24.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2003-11-29.0000000 |
| e |
0.99974064 |
| q (au) |
1.786356 |
| a (au) |
6887.427569 |
| i (deg) |
87.531639 |
| Ω (om, deg) |
238.532615 |
| ω (w, deg) |
152.233201 |
| M (ma, deg) |
0.000026 |
밝기
산란 + 전체 선형
$$
M_a = (12.724 + 4.479\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.724 |
| n |
4.479 |
| gf |
1.000 |
| gb |
-0.505 |
| 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 |
13:26:52.06 |
-66:24:14.8 |
HIP 65693 |
10.62 |
| 2026-07-29 12:00 |
13:26:53.67 |
-66:23:42.0 |
HIP 65693 |
10.12 |
| 2026-07-30 00:00 |
13:26:55.33 |
-66:23:09.3 |
HIP 65693 |
9.63 |
| 2026-07-30 12:00 |
13:26:57.04 |
-66:22:36.8 |
HIP 65693 |
9.15 |
| 2026-07-31 00:00 |
13:26:58.81 |
-66:22:04.4 |
HIP 65693 |
8.68 |
| 2026-07-31 12:00 |
13:27:00.62 |
-66:21:32.1 |
HIP 65693 |
8.21 |
| 2026-08-01 00:00 |
13:27:02.48 |
-66:21:00.0 |
HIP 65693 |
7.76 |
| 2026-08-01 12:00 |
13:27:04.38 |
-66:20:28.1 |
HIP 65693 |
7.32 |
| 2026-08-02 00:00 |
13:27:06.34 |
-66:19:56.3 |
HIP 65693 |
6.89 |
| 2026-08-02 12:00 |
13:27:08.35 |
-66:19:24.6 |
HIP 65693 |
6.48 |
| 2026-08-03 00:00 |
13:27:10.40 |
-66:18:53.1 |
HIP 65693 |
6.09 |
| 2026-08-03 12:00 |
13:27:12.51 |
-66:18:21.8 |
HIP 65693 |
5.73 |
| 2026-08-04 00:00 |
13:27:14.66 |
-66:17:50.6 |
HIP 65693 |
5.40 |
| 2026-08-04 12:00 |
13:27:16.86 |
-66:17:19.5 |
HIP 65693 |
5.10 |
| 2026-08-05 00:00 |
13:27:19.11 |
-66:16:48.7 |
HIP 65693 |
4.85 |
| 2026-08-05 12:00 |
13:27:21.41 |
-66:16:18.0 |
HIP 65693 |
4.64 |
| 2026-08-06 00:00 |
13:27:23.75 |
-66:15:47.4 |
HIP 65693 |
4.49 |
| 2026-08-06 12:00 |
13:27:26.14 |
-66:15:17.1 |
HIP 65693 |
4.41 |
| 2026-08-07 00:00 |
13:27:28.58 |
-66:14:46.9 |
HIP 65693 |
4.38 |
| 2026-08-07 12:00 |
13:27:31.07 |
-66:14:16.9 |
HIP 65693 |
4.43 |
| 2026-08-08 00:00 |
13:27:33.60 |
-66:13:47.0 |
HIP 65693 |
4.53 |
| 2026-08-08 12:00 |
13:27:36.18 |
-66:13:17.3 |
HIP 65693 |
4.70 |
| 2026-08-09 00:00 |
13:27:38.81 |
-66:12:47.8 |
HIP 65693 |
4.91 |
| 2026-08-09 12:00 |
13:27:41.49 |
-66:12:18.5 |
HIP 65693 |
5.18 |
| 2026-08-10 00:00 |
13:27:44.21 |
-66:11:49.4 |
HIP 65693 |
5.48 |
| 2026-08-10 12:00 |
13:27:46.97 |
-66:11:20.4 |
HIP 65693 |
5.82 |
| 2026-08-11 00:00 |
13:27:49.78 |
-66:10:51.7 |
HIP 65693 |
6.18 |
| 2026-08-11 12:00 |
13:27:52.64 |
-66:10:23.1 |
HIP 65693 |
6.57 |
| 2026-08-12 00:00 |
13:27:55.55 |
-66:09:54.7 |
HIP 65693 |
6.98 |
| 2026-08-12 12:00 |
13:27:58.49 |
-66:09:26.5 |
HIP 65693 |
7.40 |
| 2026-08-13 00:00 |
13:28:01.49 |
-66:08:58.5 |
HIP 65693 |
7.83 |
| 2026-08-13 12:00 |
13:28:04.53 |
-66:08:30.7 |
HIP 65779 |
7.50 |
| 2026-08-14 00:00 |
13:28:07.61 |
-66:08:03.1 |
HIP 65779 |
6.99 |
| 2026-08-14 12:00 |
13:28:10.74 |
-66:07:35.7 |
HIP 65779 |
6.49 |
| 2026-08-15 00:00 |
13:28:13.91 |
-66:07:08.5 |
HIP 65779 |
5.99 |
| 2026-08-15 12:00 |
13:28:17.12 |
-66:06:41.5 |
HIP 65779 |
5.50 |
| 2026-08-16 00:00 |
13:28:20.38 |
-66:06:14.7 |
HIP 65779 |
5.02 |
| 2026-08-16 12:00 |
13:28:23.68 |
-66:05:48.1 |
HIP 65779 |
4.56 |
| 2026-08-17 00:00 |
13:28:27.03 |
-66:05:21.7 |
HIP 65779 |
4.12 |
| 2026-08-17 12:00 |
13:28:30.41 |
-66:04:55.6 |
HIP 65779 |
3.70 |
| 2026-08-18 00:00 |
13:28:33.84 |
-66:04:29.6 |
HIP 65779 |
3.32 |
| 2026-08-18 12:00 |
13:28:37.31 |
-66:04:03.8 |
HIP 65779 |
2.99 |
| 2026-08-19 00:00 |
13:28:40.83 |
-66:03:38.3 |
HIP 65779 |
2.73 |