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) |
| 2026-09-20 00:00 |
14:41:22.91 |
-15:18:52.9 |
HIP 71773 |
6.96 |
| 2026-09-20 12:00 |
14:41:33.40 |
-15:19:39.7 |
HIP 71773 |
9.49 |
| 2026-09-21 00:00 |
14:41:43.96 |
-15:20:26.7 |
HIP 71773 |
12.08 |
| 2026-09-21 12:00 |
14:41:54.56 |
-15:21:13.9 |
HIP 71773 |
14.72 |
| 2026-09-22 00:00 |
14:42:05.22 |
-15:22:01.3 |
HIP 71773 |
17.38 |
| 2026-09-22 12:00 |
14:42:15.93 |
-15:22:48.9 |
HIP 71773 |
20.06 |
| 2026-09-23 00:00 |
14:42:26.69 |
-15:23:36.7 |
HIP 71773 |
22.75 |
| 2026-09-23 12:00 |
14:42:37.51 |
-15:24:24.7 |
HIP 71773 |
25.47 |
| 2026-09-24 00:00 |
14:42:48.38 |
-15:25:12.8 |
HIP 71773 |
28.19 |
| 2026-09-24 12:00 |
14:42:59.29 |
-15:26:01.2 |
HIP 71773 |
30.94 |
| 2026-09-25 00:00 |
14:43:10.26 |
-15:26:49.8 |
HIP 71773 |
33.69 |
| 2026-09-25 12:00 |
14:43:21.28 |
-15:27:38.5 |
HIP 71773 |
36.46 |
| 2026-09-26 00:00 |
14:43:32.35 |
-15:28:27.5 |
HIP 72194 |
35.05 |
| 2026-09-26 12:00 |
14:43:43.47 |
-15:29:16.6 |
HIP 72194 |
32.41 |
| 2026-09-27 00:00 |
14:43:54.64 |
-15:30:05.8 |
HIP 72194 |
29.78 |
| 2026-09-27 12:00 |
14:44:05.85 |
-15:30:55.3 |
HIP 72194 |
27.17 |
| 2026-09-28 00:00 |
14:44:17.12 |
-15:31:44.9 |
HIP 72194 |
24.61 |
| 2026-09-28 12:00 |
14:44:28.43 |
-15:32:34.7 |
HIP 72194 |
22.10 |
| 2026-09-29 00:00 |
14:44:39.79 |
-15:33:24.7 |
HIP 72194 |
19.68 |
| 2026-09-29 12:00 |
14:44:51.19 |
-15:34:14.8 |
HIP 72194 |
17.37 |
| 2026-09-30 00:00 |
14:45:02.64 |
-15:35:05.1 |
HIP 72194 |
15.26 |
| 2026-09-30 12:00 |
14:45:14.14 |
-15:35:55.6 |
HIP 72194 |
13.43 |
| 2026-10-01 00:00 |
14:45:25.69 |
-15:36:46.2 |
HIP 72194 |
12.01 |
| 2026-10-01 12:00 |
14:45:37.27 |
-15:37:36.9 |
HIP 72194 |
11.19 |
| 2026-10-02 00:00 |
14:45:48.91 |
-15:38:27.9 |
HIP 72194 |
11.10 |
| 2026-10-02 12:00 |
14:46:00.59 |
-15:39:18.9 |
HIP 72194 |
11.76 |
| 2026-10-03 00:00 |
14:46:12.31 |
-15:40:10.1 |
HIP 72194 |
13.07 |
| 2026-10-03 12:00 |
14:46:24.07 |
-15:41:01.5 |
HIP 72194 |
14.87 |
| 2026-10-04 00:00 |
14:46:35.88 |
-15:41:53.0 |
HIP 72194 |
17.00 |
| 2026-10-04 12:00 |
14:46:47.73 |
-15:42:44.6 |
HIP 72194 |
19.36 |
| 2026-10-05 00:00 |
14:46:59.63 |
-15:43:36.4 |
HIP 72194 |
21.88 |
| 2026-10-05 12:00 |
14:47:11.56 |
-15:44:28.3 |
HIP 72194 |
24.52 |
| 2026-10-06 00:00 |
14:47:23.54 |
-15:45:20.3 |
HIP 72194 |
27.24 |
| 2026-10-06 12:00 |
14:47:35.55 |
-15:46:12.5 |
HIP 72194 |
30.02 |
| 2026-10-07 00:00 |
14:47:47.61 |
-15:47:04.8 |
HIP 72194 |
32.86 |
| 2026-10-07 12:00 |
14:47:59.71 |
-15:47:57.2 |
HIP 72417 |
34.90 |
| 2026-10-08 00:00 |
14:48:11.85 |
-15:48:49.7 |
HIP 72417 |
35.37 |
| 2026-10-08 12:00 |
14:48:24.02 |
-15:49:42.3 |
HIP 72603 |
34.51 |
| 2026-10-09 00:00 |
14:48:36.23 |
-15:50:35.1 |
HIP 72603 |
31.45 |
| 2026-10-09 12:00 |
14:48:48.48 |
-15:51:28.0 |
HIP 72603 |
28.37 |
| 2026-10-10 00:00 |
14:49:00.77 |
-15:52:20.9 |
HIP 72603 |
25.29 |
| 2026-10-10 12:00 |
14:49:13.10 |
-15:53:14.0 |
HIP 72603 |
22.20 |
| 2026-10-11 00:00 |
14:49:25.46 |
-15:54:07.2 |
HIP 72603 |
19.09 |