メタデータ
| 項目 |
値 |
| Designation |
C/2007 T5 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2008-05-24T05:40:47.795520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:13Z |
| Obs used |
285 |
| NEO |
- |
| M1 |
12.800 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2008-01-26.0000000 |
| e |
0.91362737 |
| q (au) |
4.049258 |
| a (au) |
46.881263 |
| i (deg) |
45.615235 |
| Ω (om, deg) |
109.843075 |
| ω (w, deg) |
34.416471 |
| M (ma, deg) |
359.633887 |
等級
散乱 + 全体線形
$$
M_a = (10.741 + 2.562\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.741 |
| n |
2.562 |
| 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) |
| 2026-09-20 00:00 |
19:20:13.95 |
-22:31:46.4 |
HIP 95077 |
9.45 |
| 2026-09-20 12:00 |
19:20:12.84 |
-22:31:51.7 |
HIP 95077 |
9.67 |
| 2026-09-21 00:00 |
19:20:11.76 |
-22:31:57.0 |
HIP 95077 |
9.90 |
| 2026-09-21 12:00 |
19:20:10.72 |
-22:32:02.1 |
HIP 95077 |
10.11 |
| 2026-09-22 00:00 |
19:20:09.70 |
-22:32:07.3 |
HIP 95077 |
10.33 |
| 2026-09-22 12:00 |
19:20:08.72 |
-22:32:12.3 |
HIP 95077 |
10.54 |
| 2026-09-23 00:00 |
19:20:07.77 |
-22:32:17.3 |
HIP 95077 |
10.74 |
| 2026-09-23 12:00 |
19:20:06.86 |
-22:32:22.2 |
HIP 95077 |
10.94 |
| 2026-09-24 00:00 |
19:20:05.97 |
-22:32:27.1 |
HIP 95077 |
11.14 |
| 2026-09-24 12:00 |
19:20:05.12 |
-22:32:31.9 |
HIP 95077 |
11.33 |
| 2026-09-25 00:00 |
19:20:04.31 |
-22:32:36.6 |
HIP 95077 |
11.52 |
| 2026-09-25 12:00 |
19:20:03.52 |
-22:32:41.3 |
HIP 95077 |
11.70 |
| 2026-09-26 00:00 |
19:20:02.77 |
-22:32:45.8 |
HIP 95077 |
11.87 |
| 2026-09-26 12:00 |
19:20:02.06 |
-22:32:50.4 |
HIP 95077 |
12.04 |
| 2026-09-27 00:00 |
19:20:01.37 |
-22:32:54.8 |
HIP 95077 |
12.20 |
| 2026-09-27 12:00 |
19:20:00.72 |
-22:32:59.2 |
HIP 95077 |
12.36 |
| 2026-09-28 00:00 |
19:20:00.11 |
-22:33:03.5 |
HIP 95077 |
12.51 |
| 2026-09-28 12:00 |
19:19:59.52 |
-22:33:07.8 |
HIP 95077 |
12.66 |
| 2026-09-29 00:00 |
19:19:58.97 |
-22:33:12.0 |
HIP 95077 |
12.80 |
| 2026-09-29 12:00 |
19:19:58.46 |
-22:33:16.1 |
HIP 95077 |
12.93 |
| 2026-09-30 00:00 |
19:19:57.98 |
-22:33:20.2 |
HIP 95077 |
13.05 |
| 2026-09-30 12:00 |
19:19:57.53 |
-22:33:24.2 |
HIP 95077 |
13.18 |
| 2026-10-01 00:00 |
19:19:57.11 |
-22:33:28.1 |
HIP 95077 |
13.29 |
| 2026-10-01 12:00 |
19:19:56.73 |
-22:33:32.0 |
HIP 95077 |
13.40 |
| 2026-10-02 00:00 |
19:19:56.38 |
-22:33:35.8 |
HIP 95077 |
13.50 |
| 2026-10-02 12:00 |
19:19:56.07 |
-22:33:39.5 |
HIP 95077 |
13.59 |
| 2026-10-03 00:00 |
19:19:55.79 |
-22:33:43.1 |
HIP 95077 |
13.68 |
| 2026-10-03 12:00 |
19:19:55.54 |
-22:33:46.7 |
HIP 95077 |
13.77 |
| 2026-10-04 00:00 |
19:19:55.33 |
-22:33:50.3 |
HIP 95077 |
13.84 |
| 2026-10-04 12:00 |
19:19:55.15 |
-22:33:53.7 |
HIP 95077 |
13.91 |
| 2026-10-05 00:00 |
19:19:55.01 |
-22:33:57.1 |
HIP 95077 |
13.97 |
| 2026-10-05 12:00 |
19:19:54.90 |
-22:34:00.4 |
HIP 95077 |
14.03 |
| 2026-10-06 00:00 |
19:19:54.82 |
-22:34:03.7 |
HIP 95077 |
14.08 |
| 2026-10-06 12:00 |
19:19:54.78 |
-22:34:06.9 |
HIP 95077 |
14.13 |
| 2026-10-07 00:00 |
19:19:54.78 |
-22:34:10.0 |
HIP 95077 |
14.16 |
| 2026-10-07 12:00 |
19:19:54.80 |
-22:34:13.1 |
HIP 95077 |
14.20 |
| 2026-10-08 00:00 |
19:19:54.86 |
-22:34:16.1 |
HIP 95077 |
14.22 |
| 2026-10-08 12:00 |
19:19:54.96 |
-22:34:19.0 |
HIP 95077 |
14.24 |
| 2026-10-09 00:00 |
19:19:55.09 |
-22:34:21.8 |
HIP 95077 |
14.25 |
| 2026-10-09 12:00 |
19:19:55.26 |
-22:34:24.6 |
HIP 95077 |
14.26 |
| 2026-10-10 00:00 |
19:19:55.45 |
-22:34:27.3 |
HIP 95077 |
14.26 |
| 2026-10-10 12:00 |
19:19:55.69 |
-22:34:30.0 |
HIP 95077 |
14.26 |
| 2026-10-11 00:00 |
19:19:55.95 |
-22:34:32.6 |
HIP 95077 |
14.24 |