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 |
-0.998 |
| 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) |
| 2026-06-01 00:00 |
11:33:12.60 |
-15:55:55.3 |
HIP 56418 |
14.07 |
| 2026-06-01 12:00 |
11:33:12.06 |
-15:55:40.6 |
HIP 56418 |
14.30 |
| 2026-06-02 00:00 |
11:33:11.55 |
-15:55:25.9 |
HIP 56418 |
14.53 |
| 2026-06-02 12:00 |
11:33:11.05 |
-15:55:11.4 |
HIP 56418 |
14.75 |
| 2026-06-03 00:00 |
11:33:10.58 |
-15:54:57.0 |
HIP 56418 |
14.98 |
| 2026-06-03 12:00 |
11:33:10.14 |
-15:54:42.7 |
HIP 56418 |
15.19 |
| 2026-06-04 00:00 |
11:33:09.71 |
-15:54:28.5 |
HIP 56418 |
15.40 |
| 2026-06-04 12:00 |
11:33:09.31 |
-15:54:14.5 |
HIP 56418 |
15.61 |
| 2026-06-05 00:00 |
11:33:08.93 |
-15:54:00.5 |
HIP 56418 |
15.82 |
| 2026-06-05 12:00 |
11:33:08.57 |
-15:53:46.7 |
HIP 56418 |
16.02 |
| 2026-06-06 00:00 |
11:33:08.23 |
-15:53:33.0 |
HIP 56418 |
16.21 |
| 2026-06-06 12:00 |
11:33:07.91 |
-15:53:19.4 |
HIP 56418 |
16.41 |
| 2026-06-07 00:00 |
11:33:07.62 |
-15:53:05.9 |
HIP 56418 |
16.59 |
| 2026-06-07 12:00 |
11:33:07.35 |
-15:52:52.6 |
HIP 56418 |
16.78 |
| 2026-06-08 00:00 |
11:33:07.10 |
-15:52:39.3 |
HIP 56418 |
16.96 |
| 2026-06-08 12:00 |
11:33:06.87 |
-15:52:26.2 |
HIP 56418 |
17.13 |
| 2026-06-09 00:00 |
11:33:06.67 |
-15:52:13.2 |
HIP 56418 |
17.30 |
| 2026-06-09 12:00 |
11:33:06.49 |
-15:52:00.4 |
HIP 56418 |
17.47 |
| 2026-06-10 00:00 |
11:33:06.33 |
-15:51:47.7 |
HIP 56418 |
17.63 |
| 2026-06-10 12:00 |
11:33:06.19 |
-15:51:35.1 |
HIP 56418 |
17.78 |
| 2026-06-11 00:00 |
11:33:06.07 |
-15:51:22.6 |
HIP 56418 |
17.94 |
| 2026-06-11 12:00 |
11:33:05.98 |
-15:51:10.2 |
HIP 56418 |
18.09 |
| 2026-06-12 00:00 |
11:33:05.91 |
-15:50:58.0 |
HIP 56418 |
18.23 |
| 2026-06-12 12:00 |
11:33:05.86 |
-15:50:45.9 |
HIP 56418 |
18.37 |
| 2026-06-13 00:00 |
11:33:05.83 |
-15:50:34.0 |
HIP 56418 |
18.51 |
| 2026-06-13 12:00 |
11:33:05.83 |
-15:50:22.2 |
HIP 56418 |
18.64 |
| 2026-06-14 00:00 |
11:33:05.85 |
-15:50:10.5 |
HIP 56418 |
18.76 |
| 2026-06-14 12:00 |
11:33:05.89 |
-15:49:59.0 |
HIP 56418 |
18.89 |
| 2026-06-15 00:00 |
11:33:05.95 |
-15:49:47.6 |
HIP 56418 |
19.00 |
| 2026-06-15 12:00 |
11:33:06.03 |
-15:49:36.3 |
HIP 56418 |
19.12 |
| 2026-06-16 00:00 |
11:33:06.14 |
-15:49:25.2 |
HIP 56418 |
19.23 |
| 2026-06-16 12:00 |
11:33:06.27 |
-15:49:14.2 |
HIP 56418 |
19.33 |
| 2026-06-17 00:00 |
11:33:06.42 |
-15:49:03.3 |
HIP 56418 |
19.43 |
| 2026-06-17 12:00 |
11:33:06.59 |
-15:48:52.6 |
HIP 56418 |
19.53 |
| 2026-06-18 00:00 |
11:33:06.79 |
-15:48:42.1 |
HIP 56418 |
19.62 |
| 2026-06-18 12:00 |
11:33:07.00 |
-15:48:31.6 |
HIP 56418 |
19.71 |
| 2026-06-19 00:00 |
11:33:07.24 |
-15:48:21.4 |
HIP 56418 |
19.80 |
| 2026-06-19 12:00 |
11:33:07.50 |
-15:48:11.2 |
HIP 56418 |
19.88 |
| 2026-06-20 00:00 |
11:33:07.79 |
-15:48:01.2 |
HIP 56418 |
19.95 |
| 2026-06-20 12:00 |
11:33:08.09 |
-15:47:51.4 |
HIP 56418 |
20.03 |
| 2026-06-21 00:00 |
11:33:08.42 |
-15:47:41.7 |
HIP 56418 |
20.10 |
| 2026-06-21 12:00 |
11:33:08.77 |
-15:47:32.1 |
HIP 56418 |
20.16 |
| 2026-06-22 00:00 |
11:33:09.14 |
-15:47:22.7 |
HIP 56418 |
20.22 |