メタデータ
| 項目 |
値 |
| Designation |
P/2011 S1 (Gibbs) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-08-24T00:44:05.058240Z |
| Orbit solution date (soln_date, UTC) |
2022-04-30T03:13:22Z |
| Obs used |
148 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
11.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-06-05.0000000 |
| e |
0.20315224 |
| q (au) |
6.894034 |
| a (au) |
8.651632 |
| i (deg) |
2.679391 |
| Ω (om, deg) |
218.895891 |
| ω (w, deg) |
193.367451 |
| M (ma, deg) |
342.763587 |
等級
散乱 + 全体線形
$$
M_a = (2.792 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
2.792 |
| n |
6.000 |
| gf |
0.941 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
8.160 |
| 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 |
14:34:35.59 |
-14:53:04.4 |
HIP 71299 |
6.43 |
| 2026-06-01 12:00 |
14:34:28.41 |
-14:52:28.2 |
HIP 71299 |
7.31 |
| 2026-06-02 00:00 |
14:34:21.29 |
-14:51:52.2 |
HIP 71299 |
8.49 |
| 2026-06-02 12:00 |
14:34:14.22 |
-14:51:16.6 |
HIP 71299 |
9.85 |
| 2026-06-03 00:00 |
14:34:07.22 |
-14:50:41.2 |
HIP 71299 |
11.33 |
| 2026-06-03 12:00 |
14:34:00.27 |
-14:50:06.0 |
HIP 71180 |
12.71 |
| 2026-06-04 00:00 |
14:33:53.39 |
-14:49:31.2 |
HIP 71180 |
12.30 |
| 2026-06-04 12:00 |
14:33:46.57 |
-14:48:56.6 |
HIP 71180 |
12.12 |
| 2026-06-05 00:00 |
14:33:39.81 |
-14:48:22.4 |
HIP 71180 |
12.20 |
| 2026-06-05 12:00 |
14:33:33.11 |
-14:47:48.4 |
HIP 71180 |
12.51 |
| 2026-06-06 00:00 |
14:33:26.48 |
-14:47:14.7 |
HIP 71180 |
13.04 |
| 2026-06-06 12:00 |
14:33:19.91 |
-14:46:41.3 |
HIP 71180 |
13.75 |
| 2026-06-07 00:00 |
14:33:13.40 |
-14:46:08.2 |
HIP 71180 |
14.62 |
| 2026-06-07 12:00 |
14:33:06.96 |
-14:45:35.4 |
HIP 71180 |
15.60 |
| 2026-06-08 00:00 |
14:33:00.59 |
-14:45:03.0 |
HIP 71180 |
16.68 |
| 2026-06-08 12:00 |
14:32:54.28 |
-14:44:30.8 |
HIP 71180 |
17.83 |
| 2026-06-09 00:00 |
14:32:48.04 |
-14:43:59.0 |
HIP 71180 |
19.03 |
| 2026-06-09 12:00 |
14:32:41.87 |
-14:43:27.5 |
HIP 71180 |
20.28 |
| 2026-06-10 00:00 |
14:32:35.77 |
-14:42:56.3 |
HIP 71180 |
21.55 |
| 2026-06-10 12:00 |
14:32:29.74 |
-14:42:25.4 |
HIP 71180 |
22.85 |
| 2026-06-11 00:00 |
14:32:23.78 |
-14:41:54.9 |
HIP 71180 |
24.16 |
| 2026-06-11 12:00 |
14:32:17.90 |
-14:41:24.7 |
HIP 71180 |
25.47 |
| 2026-06-12 00:00 |
14:32:12.08 |
-14:40:54.9 |
HIP 70934 |
25.94 |
| 2026-06-12 12:00 |
14:32:06.33 |
-14:40:25.4 |
HIP 70934 |
24.49 |
| 2026-06-13 00:00 |
14:32:00.66 |
-14:39:56.2 |
HIP 70934 |
23.05 |
| 2026-06-13 12:00 |
14:31:55.07 |
-14:39:27.5 |
HIP 70934 |
21.64 |
| 2026-06-14 00:00 |
14:31:49.55 |
-14:38:59.0 |
HIP 70934 |
20.26 |
| 2026-06-14 12:00 |
14:31:44.10 |
-14:38:30.9 |
HIP 70934 |
18.89 |
| 2026-06-15 00:00 |
14:31:38.73 |
-14:38:03.2 |
HIP 70934 |
17.55 |
| 2026-06-15 12:00 |
14:31:33.43 |
-14:37:35.9 |
HIP 70934 |
16.23 |
| 2026-06-16 00:00 |
14:31:28.22 |
-14:37:08.9 |
HIP 70934 |
14.94 |
| 2026-06-16 12:00 |
14:31:23.08 |
-14:36:42.3 |
HIP 70934 |
13.68 |
| 2026-06-17 00:00 |
14:31:18.02 |
-14:36:16.1 |
HIP 70934 |
12.45 |
| 2026-06-17 12:00 |
14:31:13.04 |
-14:35:50.2 |
HIP 70934 |
11.26 |
| 2026-06-18 00:00 |
14:31:08.13 |
-14:35:24.8 |
HIP 70934 |
10.10 |
| 2026-06-18 12:00 |
14:31:03.31 |
-14:34:59.7 |
HIP 70934 |
8.99 |
| 2026-06-19 00:00 |
14:30:58.57 |
-14:34:35.0 |
HIP 70934 |
7.94 |
| 2026-06-19 12:00 |
14:30:53.91 |
-14:34:10.7 |
HIP 70934 |
6.95 |
| 2026-06-20 00:00 |
14:30:49.33 |
-14:33:46.8 |
HIP 70934 |
6.06 |
| 2026-06-20 12:00 |
14:30:44.83 |
-14:33:23.3 |
HIP 70934 |
5.30 |
| 2026-06-21 00:00 |
14:30:40.41 |
-14:33:00.1 |
HIP 70934 |
4.71 |
| 2026-06-21 12:00 |
14:30:36.08 |
-14:32:37.4 |
HIP 70934 |
4.34 |
| 2026-06-22 00:00 |
14:30:31.83 |
-14:32:15.1 |
HIP 70934 |
4.25 |