メタデータ
| 項目 |
値 |
| 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 |
オスキュレーティング軌道要素
| 項目 |
値 |
| 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 |
等級
散乱 + 全体線形
$$
M_a = (12.724 + 4.479\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.724 |
| n |
4.479 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
10.000 |
| パラメータ |
記号 |
範囲 |
説明 |
| 太陽・地球距離が1 AUのときの絶対等級 |
H0 |
-5 to 20 |
彗星の固有の明るさ |
| 測光スロープパラメータ |
n |
2 to 6 |
太陽距離に対する明るさ変化率 |
| 前方散乱非対称係数 |
gf |
0.8 to 1 |
前方散乱の強さ |
| 後方散乱非対称係数 |
gb |
-1 to -0.5 |
後方散乱の強さ |
| 分配係数 |
k |
0.8 to 1 |
前方/後方散乱の寄与比 |
| ダスト/ガス明るさ比 |
δ90 |
1 to 10 |
ダスト散乱とガス放射の相対寄与 |
参考: EPSC-DPS2025-160
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
13:33:15.42 |
-67:51:31.5 |
HIP 66012 |
18.60 |
| 2026-05-12 12:00 |
13:33:09.47 |
-67:51:07.6 |
HIP 66012 |
18.02 |
| 2026-05-13 00:00 |
13:33:03.54 |
-67:50:43.5 |
HIP 66012 |
17.45 |
| 2026-05-13 12:00 |
13:32:57.64 |
-67:50:19.2 |
HIP 66012 |
16.89 |
| 2026-05-14 00:00 |
13:32:51.78 |
-67:49:54.6 |
HIP 66012 |
16.33 |
| 2026-05-14 12:00 |
13:32:45.94 |
-67:49:29.8 |
HIP 66012 |
15.78 |
| 2026-05-15 00:00 |
13:32:40.14 |
-67:49:04.7 |
HIP 66012 |
15.24 |
| 2026-05-15 12:00 |
13:32:34.37 |
-67:48:39.4 |
HIP 66012 |
14.70 |
| 2026-05-16 00:00 |
13:32:28.63 |
-67:48:13.8 |
HIP 66012 |
14.18 |
| 2026-05-16 12:00 |
13:32:22.92 |
-67:47:48.0 |
HIP 66012 |
13.66 |
| 2026-05-17 00:00 |
13:32:17.25 |
-67:47:22.0 |
HIP 66012 |
13.16 |
| 2026-05-17 12:00 |
13:32:11.61 |
-67:46:55.7 |
HIP 66012 |
12.68 |
| 2026-05-18 00:00 |
13:32:06.01 |
-67:46:29.2 |
HIP 66012 |
12.21 |
| 2026-05-18 12:00 |
13:32:00.44 |
-67:46:02.4 |
HIP 66012 |
11.76 |
| 2026-05-19 00:00 |
13:31:54.90 |
-67:45:35.5 |
HIP 66012 |
11.33 |
| 2026-05-19 12:00 |
13:31:49.40 |
-67:45:08.3 |
HIP 66012 |
10.92 |
| 2026-05-20 00:00 |
13:31:43.94 |
-67:44:40.9 |
HIP 66012 |
10.54 |
| 2026-05-20 12:00 |
13:31:38.51 |
-67:44:13.3 |
HIP 66012 |
10.18 |
| 2026-05-21 00:00 |
13:31:33.12 |
-67:43:45.4 |
HIP 66012 |
9.86 |
| 2026-05-21 12:00 |
13:31:27.77 |
-67:43:17.4 |
HIP 66012 |
9.57 |
| 2026-05-22 00:00 |
13:31:22.46 |
-67:42:49.1 |
HIP 66012 |
9.32 |
| 2026-05-22 12:00 |
13:31:17.18 |
-67:42:20.7 |
HIP 66012 |
9.11 |
| 2026-05-23 00:00 |
13:31:11.94 |
-67:41:52.0 |
HIP 66012 |
8.94 |
| 2026-05-23 12:00 |
13:31:06.75 |
-67:41:23.1 |
HIP 66012 |
8.82 |
| 2026-05-24 00:00 |
13:31:01.59 |
-67:40:54.0 |
HIP 66012 |
8.75 |
| 2026-05-24 12:00 |
13:30:56.47 |
-67:40:24.7 |
HIP 66012 |
8.73 |
| 2026-05-25 00:00 |
13:30:51.39 |
-67:39:55.3 |
HIP 66012 |
8.76 |
| 2026-05-25 12:00 |
13:30:46.35 |
-67:39:25.6 |
HIP 66012 |
8.83 |
| 2026-05-26 00:00 |
13:30:41.35 |
-67:38:55.7 |
HIP 66012 |
8.96 |
| 2026-05-26 12:00 |
13:30:36.39 |
-67:38:25.7 |
HIP 66012 |
9.13 |
| 2026-05-27 00:00 |
13:30:31.48 |
-67:37:55.4 |
HIP 66012 |
9.34 |
| 2026-05-27 12:00 |
13:30:26.60 |
-67:37:25.0 |
HIP 66012 |
9.59 |
| 2026-05-28 00:00 |
13:30:21.77 |
-67:36:54.4 |
HIP 66012 |
9.88 |
| 2026-05-28 12:00 |
13:30:16.98 |
-67:36:23.6 |
HIP 66012 |
10.21 |
| 2026-05-29 00:00 |
13:30:12.23 |
-67:35:52.6 |
HIP 66012 |
10.56 |
| 2026-05-29 12:00 |
13:30:07.53 |
-67:35:21.5 |
HIP 66012 |
10.95 |
| 2026-05-30 00:00 |
13:30:02.86 |
-67:34:50.2 |
HIP 66012 |
11.35 |
| 2026-05-30 12:00 |
13:29:58.24 |
-67:34:18.7 |
HIP 66012 |
11.78 |
| 2026-05-31 00:00 |
13:29:53.67 |
-67:33:47.1 |
HIP 66012 |
12.23 |
| 2026-05-31 12:00 |
13:29:49.14 |
-67:33:15.3 |
HIP 66012 |
12.70 |
| 2026-06-01 00:00 |
13:29:44.65 |
-67:32:43.3 |
HIP 66012 |
13.18 |
| 2026-06-01 12:00 |
13:29:40.21 |
-67:32:11.1 |
HIP 66012 |
13.67 |
| 2026-06-02 00:00 |
13:29:35.82 |
-67:31:38.8 |
HIP 65986 |
14.00 |