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 |
8.889 |
| 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) |
| 2026-03-26 00:00 |
01:21:13.16 |
+08:14:27.2 |
HIP 6372 |
20.93 |
| 2026-03-26 12:00 |
01:21:34.13 |
+08:16:45.1 |
HIP 6372 |
16.86 |
| 2026-03-27 00:00 |
01:21:55.14 |
+08:19:03.1 |
HIP 6372 |
13.95 |
| 2026-03-27 12:00 |
01:22:16.17 |
+08:21:21.1 |
HIP 6372 |
13.03 |
| 2026-03-28 00:00 |
01:22:37.22 |
+08:23:39.2 |
HIP 6372 |
14.47 |
| 2026-03-28 12:00 |
01:22:58.30 |
+08:25:57.3 |
HIP 6372 |
17.73 |
| 2026-03-29 00:00 |
01:23:19.41 |
+08:28:15.4 |
HIP 6570 |
16.38 |
| 2026-03-29 12:00 |
01:23:40.54 |
+08:30:33.6 |
HIP 6570 |
11.85 |
| 2026-03-30 00:00 |
01:24:01.70 |
+08:32:51.8 |
HIP 6570 |
8.80 |
| 2026-03-30 12:00 |
01:24:22.88 |
+08:35:10.1 |
HIP 6570 |
8.94 |
| 2026-03-31 00:00 |
01:24:44.08 |
+08:37:28.3 |
HIP 6570 |
12.17 |
| 2026-03-31 12:00 |
01:25:05.31 |
+08:39:46.6 |
HIP 6570 |
16.79 |
| 2026-04-01 00:00 |
01:25:26.55 |
+08:42:04.9 |
HIP 6738 |
20.16 |
| 2026-04-01 12:00 |
01:25:47.82 |
+08:44:23.2 |
HIP 6738 |
16.23 |
| 2026-04-02 00:00 |
01:26:09.11 |
+08:46:41.6 |
HIP 6738 |
13.66 |
| 2026-04-02 12:00 |
01:26:30.43 |
+08:49:00.0 |
HIP 6738 |
13.25 |
| 2026-04-03 00:00 |
01:26:51.76 |
+08:51:18.2 |
HIP 6738 |
15.19 |
| 2026-04-03 12:00 |
01:27:13.11 |
+08:53:36.6 |
HIP 6738 |
18.77 |
| 2026-04-04 00:00 |
01:27:34.48 |
+08:55:54.9 |
HIP 6738 |
23.24 |
| 2026-04-04 12:00 |
01:27:55.87 |
+08:58:13.2 |
HIP 6738 |
28.19 |
| 2026-04-05 00:00 |
01:28:17.28 |
+09:00:31.6 |
HIP 6738 |
33.40 |
| 2026-04-05 12:00 |
01:28:38.70 |
+09:02:49.9 |
HIP 6738 |
38.77 |
| 2026-04-06 00:00 |
01:29:00.15 |
+09:05:08.2 |
HIP 6972 |
40.04 |
| 2026-04-06 12:00 |
01:29:21.61 |
+09:07:26.4 |
HIP 6972 |
41.23 |
| 2026-04-07 00:00 |
01:29:43.08 |
+09:09:44.7 |
HIP 7041 |
38.87 |
| 2026-04-07 12:00 |
01:30:04.57 |
+09:12:02.9 |
HIP 7041 |
34.86 |
| 2026-04-08 00:00 |
01:30:26.08 |
+09:14:21.1 |
HIP 7041 |
31.40 |
| 2026-04-08 12:00 |
01:30:47.60 |
+09:16:39.3 |
HIP 7041 |
28.69 |
| 2026-04-09 00:00 |
01:31:09.14 |
+09:18:57.4 |
HIP 7041 |
26.98 |
| 2026-04-09 12:00 |
01:31:30.68 |
+09:21:15.5 |
HIP 7041 |
26.45 |
| 2026-04-10 00:00 |
01:31:52.25 |
+09:23:33.5 |
HIP 7041 |
27.17 |
| 2026-04-10 12:00 |
01:32:13.82 |
+09:25:51.5 |
HIP 7041 |
29.06 |
| 2026-04-11 00:00 |
01:32:35.41 |
+09:28:09.5 |
HIP 7041 |
31.90 |
| 2026-04-11 12:00 |
01:32:57.00 |
+09:30:27.4 |
HIP 7131 |
32.84 |
| 2026-04-12 00:00 |
01:33:18.61 |
+09:32:45.2 |
HIP 7131 |
33.86 |
| 2026-04-12 12:00 |
01:33:40.23 |
+09:35:03.0 |
HIP 7293 |
35.64 |
| 2026-04-13 00:00 |
01:34:01.86 |
+09:37:20.7 |
HIP 7293 |
37.76 |
| 2026-04-13 12:00 |
01:34:23.50 |
+09:39:38.4 |
HIP 7392 |
39.51 |
| 2026-04-14 00:00 |
01:34:45.14 |
+09:41:56.0 |
HIP 7392 |
35.76 |
| 2026-04-14 12:00 |
01:35:06.80 |
+09:44:13.5 |
HIP 7392 |
32.62 |
| 2026-04-15 00:00 |
01:35:28.46 |
+09:46:30.9 |
HIP 7392 |
30.29 |
| 2026-04-15 12:00 |
01:35:50.13 |
+09:48:48.2 |
HIP 7561 |
26.72 |
| 2026-04-16 00:00 |
01:36:11.80 |
+09:51:05.5 |
HIP 7561 |
23.66 |