メタデータ
| 項目 |
値 |
| Designation |
C/2009 T3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-01-12T01:21:23.293440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:35Z |
| Obs used |
401 |
| NEO |
- |
| M1 |
13.600 |
| K1 |
8.750 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2009-12-02.0000000 |
| e |
0.99947085 |
| q (au) |
2.281140 |
| a (au) |
4310.962625 |
| i (deg) |
148.741818 |
| Ω (om, deg) |
60.093017 |
| ω (w, deg) |
32.447789 |
| M (ma, deg) |
359.999857 |
等級
散乱 + 全体線形
$$
M_a = (12.720 + 3.596\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.720 |
| n |
3.596 |
| gf |
1.000 |
| gb |
-0.724 |
| k |
0.998 |
| δ90 |
9.993 |
| 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) |
| 2026-06-01 00:00 |
15:39:52.03 |
-20:57:25.7 |
HIP 76758 |
7.28 |
| 2026-06-01 12:00 |
15:39:48.22 |
-20:57:14.7 |
HIP 76758 |
8.19 |
| 2026-06-02 00:00 |
15:39:44.42 |
-20:57:03.7 |
HIP 76758 |
9.09 |
| 2026-06-02 12:00 |
15:39:40.63 |
-20:56:52.7 |
HIP 76758 |
9.99 |
| 2026-06-03 00:00 |
15:39:36.85 |
-20:56:41.7 |
HIP 76758 |
10.89 |
| 2026-06-03 12:00 |
15:39:33.08 |
-20:56:30.8 |
HIP 76758 |
11.79 |
| 2026-06-04 00:00 |
15:39:29.32 |
-20:56:19.8 |
HIP 76758 |
12.69 |
| 2026-06-04 12:00 |
15:39:25.57 |
-20:56:08.9 |
HIP 76758 |
13.58 |
| 2026-06-05 00:00 |
15:39:21.82 |
-20:55:57.9 |
HIP 76758 |
14.47 |
| 2026-06-05 12:00 |
15:39:18.09 |
-20:55:47.0 |
HIP 76569 |
15.34 |
| 2026-06-06 00:00 |
15:39:14.37 |
-20:55:36.2 |
HIP 76569 |
14.59 |
| 2026-06-06 12:00 |
15:39:10.66 |
-20:55:25.3 |
HIP 76569 |
13.86 |
| 2026-06-07 00:00 |
15:39:06.95 |
-20:55:14.4 |
HIP 76569 |
13.15 |
| 2026-06-07 12:00 |
15:39:03.26 |
-20:55:03.6 |
HIP 76569 |
12.47 |
| 2026-06-08 00:00 |
15:38:59.58 |
-20:54:52.8 |
HIP 76569 |
11.81 |
| 2026-06-08 12:00 |
15:38:55.92 |
-20:54:42.0 |
HIP 76569 |
11.18 |
| 2026-06-09 00:00 |
15:38:52.26 |
-20:54:31.3 |
HIP 76569 |
10.60 |
| 2026-06-09 12:00 |
15:38:48.62 |
-20:54:20.5 |
HIP 76569 |
10.05 |
| 2026-06-10 00:00 |
15:38:44.99 |
-20:54:09.8 |
HIP 76569 |
9.56 |
| 2026-06-10 12:00 |
15:38:41.37 |
-20:53:59.1 |
HIP 76569 |
9.12 |
| 2026-06-11 00:00 |
15:38:37.76 |
-20:53:48.4 |
HIP 76569 |
8.75 |
| 2026-06-11 12:00 |
15:38:34.17 |
-20:53:37.8 |
HIP 76569 |
8.45 |
| 2026-06-12 00:00 |
15:38:30.59 |
-20:53:27.2 |
HIP 76569 |
8.23 |
| 2026-06-12 12:00 |
15:38:27.02 |
-20:53:16.6 |
HIP 76569 |
8.09 |
| 2026-06-13 00:00 |
15:38:23.47 |
-20:53:06.1 |
HIP 76569 |
8.05 |
| 2026-06-13 12:00 |
15:38:19.93 |
-20:52:55.6 |
HIP 76569 |
8.09 |
| 2026-06-14 00:00 |
15:38:16.41 |
-20:52:45.1 |
HIP 76569 |
8.22 |
| 2026-06-14 12:00 |
15:38:12.90 |
-20:52:34.7 |
HIP 76569 |
8.43 |
| 2026-06-15 00:00 |
15:38:09.41 |
-20:52:24.2 |
HIP 76569 |
8.71 |
| 2026-06-15 12:00 |
15:38:05.93 |
-20:52:13.9 |
HIP 76569 |
9.06 |
| 2026-06-16 00:00 |
15:38:02.47 |
-20:52:03.5 |
HIP 76569 |
9.47 |
| 2026-06-16 12:00 |
15:37:59.02 |
-20:51:53.2 |
HIP 76569 |
9.93 |
| 2026-06-17 00:00 |
15:37:55.59 |
-20:51:43.0 |
HIP 76569 |
10.43 |
| 2026-06-17 12:00 |
15:37:52.18 |
-20:51:32.7 |
HIP 76569 |
10.97 |
| 2026-06-18 00:00 |
15:37:48.78 |
-20:51:22.6 |
HIP 76569 |
11.54 |
| 2026-06-18 12:00 |
15:37:45.40 |
-20:51:12.4 |
HIP 76569 |
12.13 |
| 2026-06-19 00:00 |
15:37:42.04 |
-20:51:02.3 |
HIP 76569 |
12.74 |
| 2026-06-19 12:00 |
15:37:38.69 |
-20:50:52.3 |
HIP 76569 |
13.37 |
| 2026-06-20 00:00 |
15:37:35.36 |
-20:50:42.3 |
HIP 76569 |
14.02 |
| 2026-06-20 12:00 |
15:37:32.05 |
-20:50:32.3 |
HIP 76569 |
14.67 |
| 2026-06-21 00:00 |
15:37:28.76 |
-20:50:22.4 |
HIP 76569 |
15.34 |
| 2026-06-21 12:00 |
15:37:25.49 |
-20:50:12.5 |
HIP 76569 |
16.01 |
| 2026-06-22 00:00 |
15:37:22.23 |
-20:50:02.7 |
HIP 76569 |
16.69 |