メタデータ
| 項目 |
値 |
| Designation |
363P/Lemmon |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-03-22T13:30:17.461440Z |
| Orbit solution date (soln_date, UTC) |
2025-04-11T14:45:16Z |
| Obs used |
124 |
| NEO |
- |
| M1 |
17.300 |
| K1 |
12.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2015-09-25.0000000 |
| e |
0.55752671 |
| q (au) |
1.506711 |
| a (au) |
3.405202 |
| i (deg) |
3.974829 |
| Ω (om, deg) |
169.924921 |
| ω (w, deg) |
315.265579 |
| M (ma, deg) |
217.333360 |
等級
散乱 + 全体線形
$$
M_a = (16.388 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.388 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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 |
17:57:05.26 |
-17:15:05.0 |
HIP 88019 |
33.09 |
| 2026-06-01 12:00 |
17:56:43.72 |
-17:14:58.0 |
HIP 87894 |
36.18 |
| 2026-06-02 00:00 |
17:56:22.07 |
-17:14:51.4 |
HIP 87625 |
35.57 |
| 2026-06-02 12:00 |
17:56:00.32 |
-17:14:45.0 |
HIP 87625 |
30.65 |
| 2026-06-03 00:00 |
17:55:38.47 |
-17:14:38.9 |
HIP 87625 |
25.82 |
| 2026-06-03 12:00 |
17:55:16.52 |
-17:14:33.2 |
HIP 87625 |
21.14 |
| 2026-06-04 00:00 |
17:54:54.48 |
-17:14:27.7 |
HIP 87625 |
16.78 |
| 2026-06-04 12:00 |
17:54:32.35 |
-17:14:22.5 |
HIP 87625 |
13.09 |
| 2026-06-05 00:00 |
17:54:10.13 |
-17:14:17.7 |
HIP 87625 |
10.79 |
| 2026-06-05 12:00 |
17:53:47.83 |
-17:14:13.1 |
HIP 87625 |
10.85 |
| 2026-06-06 00:00 |
17:53:25.45 |
-17:14:08.8 |
HIP 87625 |
13.26 |
| 2026-06-06 12:00 |
17:53:03.00 |
-17:14:04.9 |
HIP 87561 |
15.31 |
| 2026-06-07 00:00 |
17:52:40.48 |
-17:14:01.2 |
HIP 87561 |
17.36 |
| 2026-06-07 12:00 |
17:52:17.89 |
-17:13:57.8 |
HIP 87351 |
19.42 |
| 2026-06-08 00:00 |
17:51:55.23 |
-17:13:54.8 |
HIP 87351 |
14.04 |
| 2026-06-08 12:00 |
17:51:32.52 |
-17:13:52.1 |
HIP 87351 |
8.67 |
| 2026-06-09 00:00 |
17:51:09.76 |
-17:13:49.6 |
HIP 87351 |
3.48 |
| 2026-06-09 12:00 |
17:50:46.94 |
-17:13:47.5 |
HIP 87351 |
2.86 |
| 2026-06-10 00:00 |
17:50:24.08 |
-17:13:45.7 |
HIP 87351 |
7.98 |
| 2026-06-10 12:00 |
17:50:01.17 |
-17:13:44.1 |
HIP 87266 |
5.30 |
| 2026-06-11 00:00 |
17:49:38.23 |
-17:13:42.9 |
HIP 87266 |
6.54 |
| 2026-06-11 12:00 |
17:49:15.25 |
-17:13:42.0 |
HIP 87266 |
10.84 |
| 2026-06-12 00:00 |
17:48:52.24 |
-17:13:41.4 |
HIP 87266 |
15.89 |
| 2026-06-12 12:00 |
17:48:29.21 |
-17:13:41.1 |
HIP 87266 |
21.17 |
| 2026-06-13 00:00 |
17:48:06.15 |
-17:13:41.2 |
HIP 87161 |
24.50 |
| 2026-06-13 12:00 |
17:47:43.08 |
-17:13:41.5 |
HIP 87161 |
26.12 |
| 2026-06-14 00:00 |
17:47:20.00 |
-17:13:42.2 |
HIP 87161 |
28.72 |
| 2026-06-14 12:00 |
17:46:56.91 |
-17:13:43.1 |
HIP 87161 |
32.08 |
| 2026-06-15 00:00 |
17:46:33.81 |
-17:13:44.4 |
HIP 86822 |
30.87 |
| 2026-06-15 12:00 |
17:46:10.71 |
-17:13:46.0 |
HIP 86822 |
25.45 |
| 2026-06-16 00:00 |
17:45:47.62 |
-17:13:47.9 |
HIP 86822 |
20.08 |
| 2026-06-16 12:00 |
17:45:24.54 |
-17:13:50.2 |
HIP 86822 |
14.82 |
| 2026-06-17 00:00 |
17:45:01.48 |
-17:13:52.7 |
HIP 86822 |
9.85 |
| 2026-06-17 12:00 |
17:44:38.43 |
-17:13:55.6 |
HIP 86822 |
5.94 |
| 2026-06-18 00:00 |
17:44:15.40 |
-17:13:58.7 |
HIP 86822 |
5.84 |
| 2026-06-18 12:00 |
17:43:52.40 |
-17:14:02.2 |
HIP 86822 |
9.67 |
| 2026-06-19 00:00 |
17:43:29.43 |
-17:14:06.0 |
HIP 86822 |
14.59 |
| 2026-06-19 12:00 |
17:43:06.50 |
-17:14:10.1 |
HIP 86822 |
19.81 |
| 2026-06-20 00:00 |
17:42:43.60 |
-17:14:14.6 |
HIP 86822 |
25.13 |
| 2026-06-20 12:00 |
17:42:20.75 |
-17:14:19.3 |
HIP 86603 |
26.22 |
| 2026-06-21 00:00 |
17:41:57.95 |
-17:14:24.4 |
HIP 86603 |
25.22 |
| 2026-06-21 12:00 |
17:41:35.20 |
-17:14:29.8 |
HIP 86603 |
25.35 |
| 2026-06-22 00:00 |
17:41:12.50 |
-17:14:35.4 |
HIP 86603 |
26.61 |