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 |
1.000 |
| 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) |
| 2026-03-26 00:00 |
05:03:25.30 |
-64:49:33.4 |
HIP 23506 |
17.47 |
| 2026-03-26 12:00 |
05:03:27.70 |
-64:48:40.4 |
HIP 23506 |
16.61 |
| 2026-03-27 00:00 |
05:03:30.17 |
-64:47:47.5 |
HIP 23506 |
15.76 |
| 2026-03-27 12:00 |
05:03:32.72 |
-64:46:54.9 |
HIP 23506 |
14.92 |
| 2026-03-28 00:00 |
05:03:35.33 |
-64:46:02.4 |
HIP 23506 |
14.09 |
| 2026-03-28 12:00 |
05:03:38.02 |
-64:45:10.1 |
HIP 23506 |
13.28 |
| 2026-03-29 00:00 |
05:03:40.77 |
-64:44:18.0 |
HIP 23506 |
12.49 |
| 2026-03-29 12:00 |
05:03:43.60 |
-64:43:26.0 |
HIP 23506 |
11.73 |
| 2026-03-30 00:00 |
05:03:46.49 |
-64:42:34.3 |
HIP 23506 |
10.99 |
| 2026-03-30 12:00 |
05:03:49.45 |
-64:41:42.7 |
HIP 23506 |
10.29 |
| 2026-03-31 00:00 |
05:03:52.48 |
-64:40:51.4 |
HIP 23506 |
9.63 |
| 2026-03-31 12:00 |
05:03:55.58 |
-64:40:00.2 |
HIP 23625 |
8.98 |
| 2026-04-01 00:00 |
05:03:58.75 |
-64:39:09.2 |
HIP 23625 |
8.10 |
| 2026-04-01 12:00 |
05:04:01.99 |
-64:38:18.5 |
HIP 23625 |
7.22 |
| 2026-04-02 00:00 |
05:04:05.29 |
-64:37:27.9 |
HIP 23625 |
6.36 |
| 2026-04-02 12:00 |
05:04:08.66 |
-64:36:37.6 |
HIP 23625 |
5.50 |
| 2026-04-03 00:00 |
05:04:12.10 |
-64:35:47.5 |
HIP 23625 |
4.66 |
| 2026-04-03 12:00 |
05:04:15.60 |
-64:34:57.5 |
HIP 23625 |
3.85 |
| 2026-04-04 00:00 |
05:04:19.16 |
-64:34:07.9 |
HIP 23625 |
3.10 |
| 2026-04-04 12:00 |
05:04:22.80 |
-64:33:18.4 |
HIP 23625 |
2.45 |
| 2026-04-05 00:00 |
05:04:26.49 |
-64:32:29.1 |
HIP 23625 |
2.00 |
| 2026-04-05 12:00 |
05:04:30.26 |
-64:31:40.1 |
HIP 23625 |
1.92 |
| 2026-04-06 00:00 |
05:04:34.08 |
-64:30:51.4 |
HIP 23625 |
2.23 |
| 2026-04-06 12:00 |
05:04:37.97 |
-64:30:02.8 |
HIP 23625 |
2.80 |
| 2026-04-07 00:00 |
05:04:41.92 |
-64:29:14.5 |
HIP 23625 |
3.52 |
| 2026-04-07 12:00 |
05:04:45.94 |
-64:28:26.5 |
HIP 23625 |
4.31 |
| 2026-04-08 00:00 |
05:04:50.02 |
-64:27:38.7 |
HIP 23625 |
5.13 |
| 2026-04-08 12:00 |
05:04:54.16 |
-64:26:51.1 |
HIP 23625 |
5.98 |
| 2026-04-09 00:00 |
05:04:58.36 |
-64:26:03.8 |
HIP 23625 |
6.84 |
| 2026-04-09 12:00 |
05:05:02.63 |
-64:25:16.8 |
HIP 23625 |
7.71 |
| 2026-04-10 00:00 |
05:05:06.95 |
-64:24:30.0 |
HIP 23625 |
8.58 |
| 2026-04-10 12:00 |
05:05:11.34 |
-64:23:43.4 |
HIP 23625 |
9.46 |
| 2026-04-11 00:00 |
05:05:15.78 |
-64:22:57.2 |
HIP 23625 |
10.34 |
| 2026-04-11 12:00 |
05:05:20.29 |
-64:22:11.2 |
HIP 23625 |
11.23 |
| 2026-04-12 00:00 |
05:05:24.85 |
-64:21:25.5 |
HIP 23625 |
12.11 |
| 2026-04-12 12:00 |
05:05:29.48 |
-64:20:40.0 |
HIP 23625 |
13.00 |
| 2026-04-13 00:00 |
05:05:34.16 |
-64:19:54.9 |
HIP 23625 |
13.89 |
| 2026-04-13 12:00 |
05:05:38.90 |
-64:19:10.0 |
HIP 23625 |
14.77 |
| 2026-04-14 00:00 |
05:05:43.70 |
-64:18:25.4 |
HIP 23625 |
15.66 |
| 2026-04-14 12:00 |
05:05:48.56 |
-64:17:41.1 |
HIP 23625 |
16.55 |
| 2026-04-15 00:00 |
05:05:53.47 |
-64:16:57.1 |
HIP 23625 |
17.44 |
| 2026-04-15 12:00 |
05:05:58.44 |
-64:16:13.4 |
HIP 23625 |
18.33 |
| 2026-04-16 00:00 |
05:06:03.47 |
-64:15:29.9 |
HIP 23625 |
19.22 |