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) |
| 2026-05-12 00:00 |
01:54:52.54 |
+11:46:38.8 |
HIP 8842 |
23.14 |
| 2026-05-12 12:00 |
01:55:13.71 |
+11:48:46.9 |
HIP 8842 |
25.99 |
| 2026-05-13 00:00 |
01:55:34.86 |
+11:50:54.7 |
HIP 9080 |
22.72 |
| 2026-05-13 12:00 |
01:55:55.99 |
+11:53:02.2 |
HIP 9080 |
19.74 |
| 2026-05-14 00:00 |
01:56:17.09 |
+11:55:09.5 |
HIP 9080 |
18.05 |
| 2026-05-14 12:00 |
01:56:38.16 |
+11:57:16.6 |
HIP 9080 |
17.99 |
| 2026-05-15 00:00 |
01:56:59.21 |
+11:59:23.3 |
HIP 9080 |
19.59 |
| 2026-05-15 12:00 |
01:57:20.23 |
+12:01:29.8 |
HIP 9080 |
22.49 |
| 2026-05-16 00:00 |
01:57:41.22 |
+12:03:36.1 |
HIP 9080 |
26.25 |
| 2026-05-16 12:00 |
01:58:02.19 |
+12:05:42.0 |
HIP 9295 |
23.71 |
| 2026-05-17 00:00 |
01:58:23.12 |
+12:07:47.7 |
HIP 9295 |
18.25 |
| 2026-05-17 12:00 |
01:58:44.03 |
+12:09:53.1 |
HIP 9295 |
12.87 |
| 2026-05-18 00:00 |
01:59:04.90 |
+12:11:58.2 |
HIP 9295 |
7.69 |
| 2026-05-18 12:00 |
01:59:25.74 |
+12:14:03.1 |
HIP 9295 |
3.65 |
| 2026-05-19 00:00 |
01:59:46.55 |
+12:16:07.6 |
HIP 9295 |
5.29 |
| 2026-05-19 12:00 |
02:00:07.32 |
+12:18:11.8 |
HIP 9295 |
10.14 |
| 2026-05-20 00:00 |
02:00:28.07 |
+12:20:15.8 |
HIP 9295 |
15.40 |
| 2026-05-20 12:00 |
02:00:48.78 |
+12:22:19.5 |
HIP 9295 |
20.77 |
| 2026-05-21 00:00 |
02:01:09.45 |
+12:24:22.8 |
HIP 9490 |
19.31 |
| 2026-05-21 12:00 |
02:01:30.09 |
+12:26:25.9 |
HIP 9490 |
17.85 |
| 2026-05-22 00:00 |
02:01:50.69 |
+12:28:28.6 |
HIP 9517 |
15.15 |
| 2026-05-22 12:00 |
02:02:11.25 |
+12:30:31.1 |
HIP 9517 |
11.11 |
| 2026-05-23 00:00 |
02:02:31.78 |
+12:32:33.2 |
HIP 9517 |
8.72 |
| 2026-05-23 12:00 |
02:02:52.27 |
+12:34:35.0 |
HIP 9517 |
9.33 |
| 2026-05-24 00:00 |
02:03:12.72 |
+12:36:36.6 |
HIP 9607 |
5.13 |
| 2026-05-24 12:00 |
02:03:33.14 |
+12:38:37.8 |
HIP 9607 |
3.54 |
| 2026-05-25 00:00 |
02:03:53.51 |
+12:40:38.6 |
HIP 9607 |
7.51 |
| 2026-05-25 12:00 |
02:04:13.85 |
+12:42:39.2 |
HIP 9607 |
12.55 |
| 2026-05-26 00:00 |
02:04:34.14 |
+12:44:39.4 |
HIP 9607 |
17.76 |
| 2026-05-26 12:00 |
02:04:54.39 |
+12:46:39.3 |
HIP 9607 |
23.02 |
| 2026-05-27 00:00 |
02:05:14.60 |
+12:48:38.9 |
HIP 9607 |
28.29 |
| 2026-05-27 12:00 |
02:05:34.77 |
+12:50:38.2 |
HIP 9782 |
30.08 |
| 2026-05-28 00:00 |
02:05:54.90 |
+12:52:37.1 |
HIP 9782 |
28.01 |
| 2026-05-28 12:00 |
02:06:14.98 |
+12:54:35.7 |
HIP 9782 |
26.85 |
| 2026-05-29 00:00 |
02:06:35.02 |
+12:56:34.0 |
HIP 9782 |
26.69 |
| 2026-05-29 12:00 |
02:06:55.02 |
+12:58:31.9 |
HIP 9782 |
27.55 |
| 2026-05-30 00:00 |
02:07:14.97 |
+13:00:29.5 |
HIP 9782 |
29.34 |
| 2026-05-30 12:00 |
02:07:34.87 |
+13:02:26.8 |
HIP 9828 |
29.85 |
| 2026-05-31 00:00 |
02:07:54.73 |
+13:04:23.7 |
HIP 10094 |
27.92 |
| 2026-05-31 12:00 |
02:08:14.54 |
+13:06:20.3 |
HIP 10094 |
22.80 |
| 2026-06-01 00:00 |
02:08:34.31 |
+13:08:16.5 |
HIP 10094 |
17.74 |
| 2026-06-01 12:00 |
02:08:54.02 |
+13:10:12.4 |
HIP 10094 |
12.79 |
| 2026-06-02 00:00 |
02:09:13.69 |
+13:12:07.9 |
HIP 10094 |
8.16 |