P/2010 JC81 (WISE)
メタデータ
| 項目 |
値 |
| Designation |
P/2010 JC81 (WISE) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2011-04-26T13:17:31.525440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:44Z |
| Obs used |
619 |
| NEO |
- |
| M1 |
10.300 |
| 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) |
2011-12-13.0000000 |
| e |
0.77735065 |
| q (au) |
1.810829 |
| a (au) |
8.133096 |
| i (deg) |
38.690269 |
| Ω (om, deg) |
30.768052 |
| ω (w, deg) |
12.573308 |
| M (ma, deg) |
9.792412 |
等級
散乱 + 全体線形
$$
M_a = (5.695 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.695 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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) |
| 2026-02-03 00:00 |
15:07:05.15 |
-32:02:57.1 |
HIP 73813 |
24.27 |
| 2026-02-03 12:00 |
15:07:07.01 |
-32:03:46.6 |
HIP 73813 |
24.54 |
| 2026-02-04 00:00 |
15:07:08.78 |
-32:04:35.9 |
HIP 73813 |
24.83 |
| 2026-02-04 12:00 |
15:07:10.47 |
-32:05:25.1 |
HIP 73813 |
25.13 |
| 2026-02-05 00:00 |
15:07:12.08 |
-32:06:14.0 |
HIP 73813 |
25.44 |
| 2026-02-05 12:00 |
15:07:13.60 |
-32:07:02.7 |
HIP 73813 |
25.76 |
| 2026-02-06 00:00 |
15:07:15.04 |
-32:07:51.1 |
HIP 73813 |
26.08 |
| 2026-02-06 12:00 |
15:07:16.40 |
-32:08:39.4 |
HIP 73813 |
26.42 |
| 2026-02-07 00:00 |
15:07:17.67 |
-32:09:27.4 |
HIP 73813 |
26.75 |
| 2026-02-07 12:00 |
15:07:18.85 |
-32:10:15.2 |
HIP 73813 |
27.09 |
| 2026-02-08 00:00 |
15:07:19.96 |
-32:11:02.7 |
HIP 73813 |
27.44 |
| 2026-02-08 12:00 |
15:07:20.97 |
-32:11:50.0 |
HIP 73813 |
27.78 |
| 2026-02-09 00:00 |
15:07:21.90 |
-32:12:37.1 |
HIP 73813 |
28.13 |
| 2026-02-09 12:00 |
15:07:22.75 |
-32:13:24.0 |
HIP 73813 |
28.48 |
| 2026-02-10 00:00 |
15:07:23.51 |
-32:14:10.6 |
HIP 73813 |
28.82 |
| 2026-02-10 12:00 |
15:07:24.18 |
-32:14:56.9 |
HIP 73805 |
29.17 |
| 2026-02-11 00:00 |
15:07:24.77 |
-32:15:43.0 |
HIP 73805 |
29.26 |
| 2026-02-11 12:00 |
15:07:25.27 |
-32:16:28.8 |
HIP 73805 |
29.36 |
| 2026-02-12 00:00 |
15:07:25.68 |
-32:17:14.4 |
HIP 73805 |
29.46 |
| 2026-02-12 12:00 |
15:07:26.01 |
-32:17:59.7 |
HIP 73805 |
29.56 |
| 2026-02-13 00:00 |
15:07:26.25 |
-32:18:44.8 |
HIP 73805 |
29.67 |
| 2026-02-13 12:00 |
15:07:26.40 |
-32:19:29.6 |
HIP 73805 |
29.77 |
| 2026-02-14 00:00 |
15:07:26.47 |
-32:20:14.1 |
HIP 73805 |
29.87 |
| 2026-02-14 12:00 |
15:07:26.45 |
-32:20:58.3 |
HIP 73805 |
29.97 |
| 2026-02-15 00:00 |
15:07:26.34 |
-32:21:42.3 |
HIP 73805 |
30.07 |
| 2026-02-15 12:00 |
15:07:26.14 |
-32:22:26.0 |
HIP 73805 |
30.17 |
| 2026-02-16 00:00 |
15:07:25.86 |
-32:23:09.4 |
HIP 73805 |
30.26 |
| 2026-02-16 12:00 |
15:07:25.48 |
-32:23:52.5 |
HIP 73805 |
30.35 |
| 2026-02-17 00:00 |
15:07:25.02 |
-32:24:35.4 |
HIP 73987 |
30.11 |
| 2026-02-17 12:00 |
15:07:24.47 |
-32:25:17.9 |
HIP 73987 |
29.40 |
| 2026-02-18 00:00 |
15:07:23.83 |
-32:26:00.2 |
HIP 73987 |
28.68 |
| 2026-02-18 12:00 |
15:07:23.11 |
-32:26:42.1 |
HIP 73987 |
27.98 |
| 2026-02-19 00:00 |
15:07:22.29 |
-32:27:23.8 |
HIP 73987 |
27.27 |
| 2026-02-19 12:00 |
15:07:21.39 |
-32:28:05.2 |
HIP 73987 |
26.57 |
| 2026-02-20 00:00 |
15:07:20.40 |
-32:28:46.2 |
HIP 73987 |
25.88 |
| 2026-02-20 12:00 |
15:07:19.32 |
-32:29:27.0 |
HIP 73987 |
25.19 |
| 2026-02-21 00:00 |
15:07:18.15 |
-32:30:07.4 |
HIP 73987 |
24.50 |
| 2026-02-21 12:00 |
15:07:16.90 |
-32:30:47.5 |
HIP 73987 |
23.82 |
| 2026-02-22 00:00 |
15:07:15.55 |
-32:31:27.3 |
HIP 73987 |
23.16 |
| 2026-02-22 12:00 |
15:07:14.12 |
-32:32:06.8 |
HIP 73987 |
22.49 |
| 2026-02-23 00:00 |
15:07:12.60 |
-32:32:46.0 |
HIP 73987 |
21.84 |
| 2026-02-23 12:00 |
15:07:10.99 |
-32:33:24.8 |
HIP 73987 |
21.20 |
| 2026-02-24 00:00 |
15:07:09.29 |
-32:34:03.4 |
HIP 73987 |
20.57 |