メタデータ
| 項目 |
値 |
| Designation |
C/2003 T3 (Tabur) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-04-29T00:02:37.222080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:34Z |
| Obs used |
744 |
| NEO |
- |
| M1 |
5.900 |
| K1 |
14.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2004-08-03.0000000 |
| e |
0.99974038 |
| q (au) |
1.481076 |
| a (au) |
5704.858834 |
| i (deg) |
50.444452 |
| Ω (om, deg) |
347.057553 |
| ω (w, deg) |
43.773801 |
| M (ma, deg) |
0.000220 |
等級
散乱 + 全体線形
$$
M_a = (5.386 + 5.441\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.386 |
| n |
5.441 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 2003-10-14 |
2004-04-28 |
-5.0339 |
+0.956 |
| 2004-04-29 |
2004-08-08 |
+0.8462 |
-0.347 |
| 2004-08-08 |
2004-09-10 |
+4.9041 |
-1.950 |
| 2004-09-10 |
2005-02-04 |
+4.1071 |
-1.943 |
| 2005-02-04 |
2005-05-03 |
-8.6614 |
+5.008 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
11:37:13.09 |
-16:36:13.5 |
HIP 56614 |
18.18 |
| 2026-03-26 12:00 |
11:37:10.44 |
-16:35:56.7 |
HIP 56614 |
18.05 |
| 2026-03-27 00:00 |
11:37:07.79 |
-16:35:39.9 |
HIP 56614 |
17.95 |
| 2026-03-27 12:00 |
11:37:05.15 |
-16:35:23.0 |
HIP 56614 |
17.87 |
| 2026-03-28 00:00 |
11:37:02.51 |
-16:35:06.1 |
HIP 56614 |
17.82 |
| 2026-03-28 12:00 |
11:36:59.88 |
-16:34:49.0 |
HIP 56614 |
17.81 |
| 2026-03-29 00:00 |
11:36:57.26 |
-16:34:31.9 |
HIP 56614 |
17.82 |
| 2026-03-29 12:00 |
11:36:54.64 |
-16:34:14.6 |
HIP 56614 |
17.86 |
| 2026-03-30 00:00 |
11:36:52.03 |
-16:33:57.3 |
HIP 56614 |
17.92 |
| 2026-03-30 12:00 |
11:36:49.43 |
-16:33:39.9 |
HIP 56614 |
18.02 |
| 2026-03-31 00:00 |
11:36:46.83 |
-16:33:22.5 |
HIP 56614 |
18.14 |
| 2026-03-31 12:00 |
11:36:44.24 |
-16:33:04.9 |
HIP 56614 |
18.29 |
| 2026-04-01 00:00 |
11:36:41.65 |
-16:32:47.3 |
HIP 56614 |
18.46 |
| 2026-04-01 12:00 |
11:36:39.08 |
-16:32:29.6 |
HIP 56614 |
18.66 |
| 2026-04-02 00:00 |
11:36:36.51 |
-16:32:11.9 |
HIP 56614 |
18.89 |
| 2026-04-02 12:00 |
11:36:33.95 |
-16:31:54.0 |
HIP 56614 |
19.13 |
| 2026-04-03 00:00 |
11:36:31.40 |
-16:31:36.1 |
HIP 56614 |
19.40 |
| 2026-04-03 12:00 |
11:36:28.85 |
-16:31:18.2 |
HIP 56614 |
19.69 |
| 2026-04-04 00:00 |
11:36:26.32 |
-16:31:00.2 |
HIP 56614 |
20.00 |
| 2026-04-04 12:00 |
11:36:23.79 |
-16:30:42.1 |
HIP 56614 |
20.33 |
| 2026-04-05 00:00 |
11:36:21.27 |
-16:30:23.9 |
HIP 56614 |
20.67 |
| 2026-04-05 12:00 |
11:36:18.76 |
-16:30:05.7 |
HIP 56614 |
21.04 |
| 2026-04-06 00:00 |
11:36:16.26 |
-16:29:47.4 |
HIP 56614 |
21.42 |
| 2026-04-06 12:00 |
11:36:13.77 |
-16:29:29.1 |
HIP 56614 |
21.81 |
| 2026-04-07 00:00 |
11:36:11.29 |
-16:29:10.7 |
HIP 56614 |
22.22 |
| 2026-04-07 12:00 |
11:36:08.82 |
-16:28:52.2 |
HIP 56614 |
22.63 |
| 2026-04-08 00:00 |
11:36:06.36 |
-16:28:33.7 |
HIP 56614 |
23.07 |
| 2026-04-08 12:00 |
11:36:03.91 |
-16:28:15.2 |
HIP 56614 |
23.51 |
| 2026-04-09 00:00 |
11:36:01.46 |
-16:27:56.6 |
HIP 56614 |
23.96 |
| 2026-04-09 12:00 |
11:35:59.03 |
-16:27:37.9 |
HIP 56614 |
24.43 |
| 2026-04-10 00:00 |
11:35:56.61 |
-16:27:19.3 |
HIP 56614 |
24.90 |
| 2026-04-10 12:00 |
11:35:54.21 |
-16:27:00.5 |
HIP 56614 |
25.38 |
| 2026-04-11 00:00 |
11:35:51.81 |
-16:26:41.7 |
HIP 56614 |
25.86 |
| 2026-04-11 12:00 |
11:35:49.42 |
-16:26:22.9 |
HIP 56614 |
26.36 |
| 2026-04-12 00:00 |
11:35:47.04 |
-16:26:04.0 |
HIP 56614 |
26.86 |
| 2026-04-12 12:00 |
11:35:44.68 |
-16:25:45.1 |
HIP 56614 |
27.37 |
| 2026-04-13 00:00 |
11:35:42.33 |
-16:25:26.2 |
HIP 56614 |
27.88 |
| 2026-04-13 12:00 |
11:35:39.99 |
-16:25:07.2 |
HIP 56614 |
28.39 |
| 2026-04-14 00:00 |
11:35:37.66 |
-16:24:48.2 |
HIP 56614 |
28.91 |
| 2026-04-14 12:00 |
11:35:35.35 |
-16:24:29.2 |
HIP 56614 |
29.44 |
| 2026-04-15 00:00 |
11:35:33.04 |
-16:24:10.1 |
HIP 56614 |
29.97 |
| 2026-04-15 12:00 |
11:35:30.75 |
-16:23:51.0 |
HIP 56418 |
29.68 |
| 2026-04-16 00:00 |
11:35:28.48 |
-16:23:31.9 |
HIP 56418 |
29.07 |