メタデータ
| 項目 |
値 |
| Designation |
P/2005 T3 (Read) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2006-01-12T10:35:40.450560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:53Z |
| Obs used |
42 |
| NEO |
- |
| M1 |
9.200 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2005-10-24.0000000 |
| e |
0.17378534 |
| q (au) |
6.202461 |
| a (au) |
7.507082 |
| i (deg) |
6.263090 |
| Ω (om, deg) |
27.995785 |
| ω (w, deg) |
8.164900 |
| M (ma, deg) |
356.145419 |
等級
散乱 + 全体線形
$$
M_a = (12.262 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.262 |
| n |
2.000 |
| gf |
0.955 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
8.888 |
| 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 |
02:41:50.42 |
+16:52:30.7 |
HIP 12634 |
8.75 |
| 2026-09-20 12:00 |
02:41:44.22 |
+16:52:22.4 |
HIP 12568 |
8.35 |
| 2026-09-21 00:00 |
02:41:37.87 |
+16:52:13.4 |
HIP 12568 |
8.06 |
| 2026-09-21 12:00 |
02:41:31.38 |
+16:52:03.8 |
HIP 12568 |
8.05 |
| 2026-09-22 00:00 |
02:41:24.76 |
+16:51:53.6 |
HIP 12568 |
8.34 |
| 2026-09-22 12:00 |
02:41:17.99 |
+16:51:42.7 |
HIP 12568 |
8.93 |
| 2026-09-23 00:00 |
02:41:11.09 |
+16:51:31.1 |
HIP 12568 |
9.76 |
| 2026-09-23 12:00 |
02:41:04.04 |
+16:51:18.9 |
HIP 12568 |
10.81 |
| 2026-09-24 00:00 |
02:40:56.87 |
+16:51:06.1 |
HIP 12568 |
12.03 |
| 2026-09-24 12:00 |
02:40:49.55 |
+16:50:52.6 |
HIP 12441 |
12.12 |
| 2026-09-25 00:00 |
02:40:42.11 |
+16:50:38.5 |
HIP 12441 |
10.59 |
| 2026-09-25 12:00 |
02:40:34.53 |
+16:50:23.8 |
HIP 12441 |
9.12 |
| 2026-09-26 00:00 |
02:40:26.81 |
+16:50:08.4 |
HIP 12441 |
7.79 |
| 2026-09-26 12:00 |
02:40:18.97 |
+16:49:52.4 |
HIP 12441 |
6.69 |
| 2026-09-27 00:00 |
02:40:10.99 |
+16:49:35.7 |
HIP 12441 |
5.99 |
| 2026-09-27 12:00 |
02:40:02.89 |
+16:49:18.4 |
HIP 12441 |
5.87 |
| 2026-09-28 00:00 |
02:39:54.66 |
+16:49:00.6 |
HIP 12441 |
6.39 |
| 2026-09-28 12:00 |
02:39:46.30 |
+16:48:42.0 |
HIP 12441 |
7.44 |
| 2026-09-29 00:00 |
02:39:37.81 |
+16:48:22.9 |
HIP 12441 |
8.86 |
| 2026-09-29 12:00 |
02:39:29.20 |
+16:48:03.2 |
HIP 12441 |
10.51 |
| 2026-09-30 00:00 |
02:39:20.46 |
+16:47:42.8 |
HIP 12441 |
12.32 |
| 2026-09-30 12:00 |
02:39:11.61 |
+16:47:21.8 |
HIP 12441 |
14.24 |
| 2026-10-01 00:00 |
02:39:02.63 |
+16:47:00.2 |
HIP 12441 |
16.25 |
| 2026-10-01 12:00 |
02:38:53.53 |
+16:46:38.1 |
HIP 12441 |
18.32 |
| 2026-10-02 00:00 |
02:38:44.31 |
+16:46:15.3 |
HIP 12230 |
18.59 |
| 2026-10-02 12:00 |
02:38:34.97 |
+16:45:51.9 |
HIP 12230 |
16.47 |
| 2026-10-03 00:00 |
02:38:25.51 |
+16:45:27.9 |
HIP 12230 |
14.38 |
| 2026-10-03 12:00 |
02:38:15.94 |
+16:45:03.4 |
HIP 12230 |
12.34 |
| 2026-10-04 00:00 |
02:38:06.26 |
+16:44:38.2 |
HIP 12230 |
10.40 |
| 2026-10-04 12:00 |
02:37:56.46 |
+16:44:12.5 |
HIP 12230 |
8.65 |
| 2026-10-05 00:00 |
02:37:46.55 |
+16:43:46.2 |
HIP 12230 |
7.26 |
| 2026-10-05 12:00 |
02:37:36.53 |
+16:43:19.3 |
HIP 12230 |
6.50 |
| 2026-10-06 00:00 |
02:37:26.40 |
+16:42:51.9 |
HIP 12230 |
6.62 |
| 2026-10-06 12:00 |
02:37:16.17 |
+16:42:23.9 |
HIP 12230 |
7.61 |
| 2026-10-07 00:00 |
02:37:05.83 |
+16:41:55.3 |
HIP 12230 |
9.21 |
| 2026-10-07 12:00 |
02:36:55.39 |
+16:41:26.2 |
HIP 12230 |
11.18 |
| 2026-10-08 00:00 |
02:36:44.84 |
+16:40:56.5 |
HIP 12230 |
13.37 |
| 2026-10-08 12:00 |
02:36:34.20 |
+16:40:26.3 |
HIP 12075 |
13.30 |
| 2026-10-09 00:00 |
02:36:23.45 |
+16:39:55.6 |
HIP 12075 |
10.69 |
| 2026-10-09 12:00 |
02:36:12.61 |
+16:39:24.3 |
HIP 12075 |
8.06 |
| 2026-10-10 00:00 |
02:36:01.67 |
+16:38:52.6 |
HIP 12075 |
5.43 |
| 2026-10-10 12:00 |
02:35:50.64 |
+16:38:20.3 |
HIP 12075 |
2.83 |
| 2026-10-11 00:00 |
02:35:39.52 |
+16:37:47.5 |
HIP 12075 |
1.07 |