メタデータ
| 項目 |
値 |
| Designation |
359P/LONEOS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-08-21T04:24:35.637120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:34Z |
| Obs used |
133 |
| NEO |
- |
| M1 |
14.800 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2015-04-16.0000000 |
| e |
0.32248320 |
| q (au) |
3.137799 |
| a (au) |
4.631322 |
| i (deg) |
10.262827 |
| Ω (om, deg) |
149.806429 |
| ω (w, deg) |
200.248458 |
| M (ma, deg) |
275.135344 |
等級
散乱 + 全体線形
$$
M_a = (13.703 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.703 |
| n |
2.000 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
18:44:12.52 |
-12:06:35.4 |
HIP 91748 |
27.18 |
| 2026-05-12 12:00 |
18:44:08.71 |
-12:05:53.1 |
HIP 91748 |
26.03 |
| 2026-05-13 00:00 |
18:44:04.64 |
-12:05:11.5 |
HIP 91748 |
24.83 |
| 2026-05-13 12:00 |
18:44:00.33 |
-12:04:30.5 |
HIP 91748 |
23.58 |
| 2026-05-14 00:00 |
18:43:55.77 |
-12:03:50.3 |
HIP 91748 |
22.28 |
| 2026-05-14 12:00 |
18:43:50.95 |
-12:03:10.6 |
HIP 91748 |
20.94 |
| 2026-05-15 00:00 |
18:43:45.89 |
-12:02:31.7 |
HIP 91748 |
19.54 |
| 2026-05-15 12:00 |
18:43:40.58 |
-12:01:53.4 |
HIP 91748 |
18.09 |
| 2026-05-16 00:00 |
18:43:35.02 |
-12:01:15.9 |
HIP 91748 |
16.60 |
| 2026-05-16 12:00 |
18:43:29.21 |
-12:00:39.0 |
HIP 91748 |
15.05 |
| 2026-05-17 00:00 |
18:43:23.16 |
-12:00:02.9 |
HIP 91748 |
13.46 |
| 2026-05-17 12:00 |
18:43:16.86 |
-11:59:27.5 |
HIP 91748 |
11.82 |
| 2026-05-18 00:00 |
18:43:10.32 |
-11:58:52.8 |
HIP 91748 |
10.13 |
| 2026-05-18 12:00 |
18:43:03.53 |
-11:58:18.9 |
HIP 91748 |
8.41 |
| 2026-05-19 00:00 |
18:42:56.50 |
-11:57:45.7 |
HIP 91748 |
6.65 |
| 2026-05-19 12:00 |
18:42:49.23 |
-11:57:13.3 |
HIP 91748 |
4.90 |
| 2026-05-20 00:00 |
18:42:41.72 |
-11:56:41.7 |
HIP 91748 |
3.25 |
| 2026-05-20 12:00 |
18:42:33.97 |
-11:56:10.8 |
HIP 91748 |
2.10 |
| 2026-05-21 00:00 |
18:42:25.99 |
-11:55:40.7 |
HIP 91748 |
2.50 |
| 2026-05-21 12:00 |
18:42:17.76 |
-11:55:11.4 |
HIP 91748 |
4.08 |
| 2026-05-22 00:00 |
18:42:09.30 |
-11:54:42.8 |
HIP 91748 |
6.03 |
| 2026-05-22 12:00 |
18:42:00.61 |
-11:54:15.1 |
HIP 91748 |
8.13 |
| 2026-05-23 00:00 |
18:41:51.69 |
-11:53:48.2 |
HIP 91748 |
10.31 |
| 2026-05-23 12:00 |
18:41:42.54 |
-11:53:22.1 |
HIP 91748 |
12.57 |
| 2026-05-24 00:00 |
18:41:33.15 |
-11:52:56.8 |
HIP 91748 |
14.89 |
| 2026-05-24 12:00 |
18:41:23.54 |
-11:52:32.3 |
HIP 91748 |
17.27 |
| 2026-05-25 00:00 |
18:41:13.70 |
-11:52:08.7 |
HIP 91748 |
19.70 |
| 2026-05-25 12:00 |
18:41:03.64 |
-11:51:45.9 |
HIP 91748 |
22.19 |
| 2026-05-26 00:00 |
18:40:53.36 |
-11:51:23.9 |
HIP 91748 |
24.73 |
| 2026-05-26 12:00 |
18:40:42.85 |
-11:51:02.8 |
HIP 91748 |
27.32 |
| 2026-05-27 00:00 |
18:40:32.12 |
-11:50:42.5 |
HIP 91431 |
28.92 |
| 2026-05-27 12:00 |
18:40:21.18 |
-11:50:23.1 |
HIP 91431 |
26.68 |
| 2026-05-28 00:00 |
18:40:10.01 |
-11:50:04.6 |
HIP 91431 |
24.48 |
| 2026-05-28 12:00 |
18:39:58.64 |
-11:49:46.9 |
HIP 91431 |
22.35 |
| 2026-05-29 00:00 |
18:39:47.04 |
-11:49:30.1 |
HIP 91431 |
20.33 |
| 2026-05-29 12:00 |
18:39:35.24 |
-11:49:14.2 |
HIP 91431 |
18.49 |
| 2026-05-30 00:00 |
18:39:23.23 |
-11:48:59.2 |
HIP 91431 |
16.90 |
| 2026-05-30 12:00 |
18:39:11.01 |
-11:48:45.0 |
HIP 91431 |
15.68 |
| 2026-05-31 00:00 |
18:38:58.58 |
-11:48:31.8 |
HIP 91431 |
14.94 |
| 2026-05-31 12:00 |
18:38:45.95 |
-11:48:19.4 |
HIP 91431 |
14.79 |
| 2026-06-01 00:00 |
18:38:33.12 |
-11:48:08.0 |
HIP 91431 |
15.27 |
| 2026-06-01 12:00 |
18:38:20.09 |
-11:47:57.5 |
HIP 91431 |
16.36 |
| 2026-06-02 00:00 |
18:38:06.86 |
-11:47:47.9 |
HIP 91431 |
17.97 |