メタデータ
| 項目 |
値 |
| Designation |
C/2011 UF305 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2012-07-22T03:58:11.043840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:57Z |
| Obs used |
2274 |
| NEO |
- |
| M1 |
6.600 |
| K1 |
15.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-09-24.0000000 |
| e |
1.00067410 |
| q (au) |
2.138212 |
| a (au) |
-3171.934164 |
| i (deg) |
93.960744 |
| Ω (om, deg) |
297.435869 |
| ω (w, deg) |
121.994483 |
| M (ma, deg) |
0.000352 |
等級
散乱 + 全体線形
$$
M_a = (4.016 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.016 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.501 |
| 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) |
| 2026-06-01 00:00 |
05:16:40.04 |
-63:35:14.8 |
HIP 24423 |
15.33 |
| 2026-06-01 12:00 |
05:16:48.14 |
-63:35:08.1 |
HIP 24536 |
15.94 |
| 2026-06-02 00:00 |
05:16:56.25 |
-63:35:01.8 |
HIP 24536 |
16.23 |
| 2026-06-02 12:00 |
05:17:04.37 |
-63:34:56.0 |
HIP 24536 |
16.57 |
| 2026-06-03 00:00 |
05:17:12.50 |
-63:34:50.6 |
HIP 24536 |
16.95 |
| 2026-06-03 12:00 |
05:17:20.64 |
-63:34:45.6 |
HIP 24536 |
17.39 |
| 2026-06-04 00:00 |
05:17:28.79 |
-63:34:41.1 |
HIP 24536 |
17.86 |
| 2026-06-04 12:00 |
05:17:36.94 |
-63:34:37.1 |
HIP 24536 |
18.38 |
| 2026-06-05 00:00 |
05:17:45.10 |
-63:34:33.5 |
HIP 24536 |
18.93 |
| 2026-06-05 12:00 |
05:17:53.27 |
-63:34:30.4 |
HIP 24536 |
19.52 |
| 2026-06-06 00:00 |
05:18:01.45 |
-63:34:27.7 |
HIP 24963 |
19.03 |
| 2026-06-06 12:00 |
05:18:09.63 |
-63:34:25.5 |
HIP 24963 |
18.12 |
| 2026-06-07 00:00 |
05:18:17.81 |
-63:34:23.7 |
HIP 24963 |
17.22 |
| 2026-06-07 12:00 |
05:18:26.00 |
-63:34:22.4 |
HIP 24963 |
16.31 |
| 2026-06-08 00:00 |
05:18:34.20 |
-63:34:21.5 |
HIP 24963 |
15.41 |
| 2026-06-08 12:00 |
05:18:42.40 |
-63:34:21.1 |
HIP 24963 |
14.52 |
| 2026-06-09 00:00 |
05:18:50.60 |
-63:34:21.1 |
HIP 24963 |
13.62 |
| 2026-06-09 12:00 |
05:18:58.81 |
-63:34:21.6 |
HIP 24963 |
12.73 |
| 2026-06-10 00:00 |
05:19:07.02 |
-63:34:22.6 |
HIP 24963 |
11.85 |
| 2026-06-10 12:00 |
05:19:15.23 |
-63:34:24.0 |
HIP 24963 |
10.97 |
| 2026-06-11 00:00 |
05:19:23.44 |
-63:34:25.9 |
HIP 24963 |
10.10 |
| 2026-06-11 12:00 |
05:19:31.66 |
-63:34:28.2 |
HIP 24963 |
9.24 |
| 2026-06-12 00:00 |
05:19:39.87 |
-63:34:31.0 |
HIP 24963 |
8.39 |
| 2026-06-12 12:00 |
05:19:48.08 |
-63:34:34.2 |
HIP 24963 |
7.57 |
| 2026-06-13 00:00 |
05:19:56.30 |
-63:34:37.9 |
HIP 24963 |
6.77 |
| 2026-06-13 12:00 |
05:20:04.51 |
-63:34:42.0 |
HIP 24963 |
6.01 |
| 2026-06-14 00:00 |
05:20:12.72 |
-63:34:46.6 |
HIP 24963 |
5.30 |
| 2026-06-14 12:00 |
05:20:20.93 |
-63:34:51.7 |
HIP 24963 |
4.68 |
| 2026-06-15 00:00 |
05:20:29.14 |
-63:34:57.2 |
HIP 24963 |
4.17 |
| 2026-06-15 12:00 |
05:20:37.34 |
-63:35:03.2 |
HIP 24963 |
3.82 |
| 2026-06-16 00:00 |
05:20:45.54 |
-63:35:09.6 |
HIP 24963 |
3.69 |
| 2026-06-16 12:00 |
05:20:53.73 |
-63:35:16.5 |
HIP 24963 |
3.78 |
| 2026-06-17 00:00 |
05:21:01.92 |
-63:35:23.9 |
HIP 24963 |
4.10 |
| 2026-06-17 12:00 |
05:21:10.11 |
-63:35:31.7 |
HIP 24963 |
4.59 |
| 2026-06-18 00:00 |
05:21:18.29 |
-63:35:39.9 |
HIP 24963 |
5.20 |
| 2026-06-18 12:00 |
05:21:26.46 |
-63:35:48.7 |
HIP 24963 |
5.89 |
| 2026-06-19 00:00 |
05:21:34.63 |
-63:35:57.8 |
HIP 24963 |
6.65 |
| 2026-06-19 12:00 |
05:21:42.78 |
-63:36:07.4 |
HIP 24963 |
7.45 |
| 2026-06-20 00:00 |
05:21:50.93 |
-63:36:17.5 |
HIP 24963 |
8.28 |
| 2026-06-20 12:00 |
05:21:59.07 |
-63:36:28.0 |
HIP 24963 |
9.12 |
| 2026-06-21 00:00 |
05:22:07.21 |
-63:36:39.0 |
HIP 24963 |
9.99 |
| 2026-06-21 12:00 |
05:22:15.33 |
-63:36:50.4 |
HIP 24963 |
10.87 |
| 2026-06-22 00:00 |
05:22:23.44 |
-63:37:02.3 |
HIP 24963 |
11.75 |