C/2003 T3 (Tabur)
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 |
+0.8945 |
-0.357 |
| 2004-08-08 |
2004-09-10 |
+3.8235 |
-1.607 |
| 2004-09-10 |
2004-10-13 |
+3.8481 |
-1.921 |
| 2004-10-13 |
2005-02-04 |
+3.1633 |
-1.432 |
| 2005-02-04 |
2005-05-03 |
-8.2973 |
+4.779 |
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) |
| 2026-02-03 00:00 |
11:41:31.27 |
-16:52:51.8 |
HIP 57078 |
11.06 |
| 2026-02-03 12:00 |
11:41:29.23 |
-16:52:50.4 |
HIP 57078 |
11.41 |
| 2026-02-04 00:00 |
11:41:27.17 |
-16:52:48.9 |
HIP 57078 |
11.78 |
| 2026-02-04 12:00 |
11:41:25.09 |
-16:52:47.2 |
HIP 57078 |
12.16 |
| 2026-02-05 00:00 |
11:41:23.00 |
-16:52:45.2 |
HIP 57005 |
12.12 |
| 2026-02-05 12:00 |
11:41:20.89 |
-16:52:43.1 |
HIP 57005 |
11.98 |
| 2026-02-06 00:00 |
11:41:18.77 |
-16:52:40.9 |
HIP 57005 |
11.85 |
| 2026-02-06 12:00 |
11:41:16.63 |
-16:52:38.4 |
HIP 57005 |
11.74 |
| 2026-02-07 00:00 |
11:41:14.47 |
-16:52:35.7 |
HIP 57005 |
11.64 |
| 2026-02-07 12:00 |
11:41:12.30 |
-16:52:32.9 |
HIP 57005 |
11.57 |
| 2026-02-08 00:00 |
11:41:10.12 |
-16:52:29.9 |
HIP 57005 |
11.51 |
| 2026-02-08 12:00 |
11:41:07.92 |
-16:52:26.6 |
HIP 57005 |
11.48 |
| 2026-02-09 00:00 |
11:41:05.71 |
-16:52:23.3 |
HIP 57005 |
11.47 |
| 2026-02-09 12:00 |
11:41:03.48 |
-16:52:19.7 |
HIP 57005 |
11.48 |
| 2026-02-10 00:00 |
11:41:01.24 |
-16:52:15.9 |
HIP 57005 |
11.51 |
| 2026-02-10 12:00 |
11:40:58.98 |
-16:52:12.0 |
HIP 57005 |
11.57 |
| 2026-02-11 00:00 |
11:40:56.71 |
-16:52:07.9 |
HIP 57005 |
11.65 |
| 2026-02-11 12:00 |
11:40:54.43 |
-16:52:03.5 |
HIP 57005 |
11.75 |
| 2026-02-12 00:00 |
11:40:52.13 |
-16:51:59.1 |
HIP 57005 |
11.87 |
| 2026-02-12 12:00 |
11:40:49.83 |
-16:51:54.4 |
HIP 57005 |
12.02 |
| 2026-02-13 00:00 |
11:40:47.50 |
-16:51:49.5 |
HIP 57005 |
12.19 |
| 2026-02-13 12:00 |
11:40:45.17 |
-16:51:44.5 |
HIP 57005 |
12.39 |
| 2026-02-14 00:00 |
11:40:42.82 |
-16:51:39.3 |
HIP 57005 |
12.60 |
| 2026-02-14 12:00 |
11:40:40.46 |
-16:51:33.9 |
HIP 57005 |
12.84 |
| 2026-02-15 00:00 |
11:40:38.09 |
-16:51:28.3 |
HIP 57005 |
13.09 |
| 2026-02-15 12:00 |
11:40:35.70 |
-16:51:22.6 |
HIP 57005 |
13.37 |
| 2026-02-16 00:00 |
11:40:33.31 |
-16:51:16.6 |
HIP 57005 |
13.66 |
| 2026-02-16 12:00 |
11:40:30.90 |
-16:51:10.5 |
HIP 57005 |
13.97 |
| 2026-02-17 00:00 |
11:40:28.48 |
-16:51:04.3 |
HIP 57005 |
14.30 |
| 2026-02-17 12:00 |
11:40:26.05 |
-16:50:57.8 |
HIP 57005 |
14.64 |
| 2026-02-18 00:00 |
11:40:23.61 |
-16:50:51.2 |
HIP 57005 |
15.00 |
| 2026-02-18 12:00 |
11:40:21.15 |
-16:50:44.3 |
HIP 57005 |
15.38 |
| 2026-02-19 00:00 |
11:40:18.69 |
-16:50:37.4 |
HIP 56899 |
15.03 |
| 2026-02-19 12:00 |
11:40:16.22 |
-16:50:30.2 |
HIP 56899 |
14.66 |
| 2026-02-20 00:00 |
11:40:13.74 |
-16:50:22.9 |
HIP 56899 |
14.31 |
| 2026-02-20 12:00 |
11:40:11.24 |
-16:50:15.4 |
HIP 56899 |
13.97 |
| 2026-02-21 00:00 |
11:40:08.74 |
-16:50:07.7 |
HIP 56899 |
13.65 |
| 2026-02-21 12:00 |
11:40:06.23 |
-16:49:59.9 |
HIP 56899 |
13.34 |
| 2026-02-22 00:00 |
11:40:03.71 |
-16:49:51.8 |
HIP 56899 |
13.05 |
| 2026-02-22 12:00 |
11:40:01.18 |
-16:49:43.7 |
HIP 56899 |
12.78 |
| 2026-02-23 00:00 |
11:39:58.64 |
-16:49:35.3 |
HIP 56899 |
12.53 |
| 2026-02-23 12:00 |
11:39:56.09 |
-16:49:26.8 |
HIP 56899 |
12.31 |
| 2026-02-24 00:00 |
11:39:53.53 |
-16:49:18.1 |
HIP 56899 |
12.11 |