メタデータ
| 項目 |
値 |
| Designation |
313P/Gibbs |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-04-10T12:13:52.524480Z |
| Orbit solution date (soln_date, UTC) |
2025-12-12T11:12:41Z |
| Obs used |
200 |
| NEO |
- |
| M1 |
17.000 |
| 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) |
2017-08-29.0000000 |
| e |
0.23917627 |
| q (au) |
2.405470 |
| a (au) |
3.161666 |
| i (deg) |
10.948500 |
| Ω (om, deg) |
106.342997 |
| ω (w, deg) |
253.943073 |
| M (ma, deg) |
192.480572 |
等級
散乱 + 全体線形
$$
M_a = (19.375 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
19.375 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.644 |
| k |
0.800 |
| 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 |
03:08:02.29 |
+10:29:32.9 |
HIP 14601 |
7.55 |
| 2026-05-12 12:00 |
03:08:55.65 |
+10:33:45.2 |
HIP 14601 |
9.27 |
| 2026-05-13 00:00 |
03:09:49.01 |
+10:37:56.3 |
HIP 14601 |
22.22 |
| 2026-05-13 12:00 |
03:10:42.37 |
+10:42:06.3 |
HIP 14861 |
23.98 |
| 2026-05-14 00:00 |
03:11:35.74 |
+10:46:15.1 |
HIP 14861 |
12.63 |
| 2026-05-14 12:00 |
03:12:29.10 |
+10:50:22.7 |
HIP 14861 |
11.06 |
| 2026-05-15 00:00 |
03:13:22.46 |
+10:54:29.1 |
HIP 14861 |
21.50 |
| 2026-05-15 12:00 |
03:14:15.81 |
+10:58:34.4 |
HIP 14977 |
25.00 |
| 2026-05-16 00:00 |
03:15:09.17 |
+11:02:38.5 |
HIP 14977 |
33.71 |
| 2026-05-16 12:00 |
03:16:02.52 |
+11:06:41.4 |
HIP 15206 |
31.02 |
| 2026-05-17 00:00 |
03:16:55.87 |
+11:10:43.2 |
HIP 15206 |
29.94 |
| 2026-05-17 12:00 |
03:17:49.22 |
+11:14:43.7 |
HIP 15453 |
25.13 |
| 2026-05-18 00:00 |
03:18:42.56 |
+11:18:43.1 |
HIP 15453 |
12.23 |
| 2026-05-18 12:00 |
03:19:35.90 |
+11:22:41.2 |
HIP 15453 |
6.42 |
| 2026-05-19 00:00 |
03:20:29.23 |
+11:26:38.1 |
HIP 15453 |
17.49 |
| 2026-05-19 12:00 |
03:21:22.56 |
+11:30:33.9 |
HIP 15668 |
13.90 |
| 2026-05-20 00:00 |
03:22:15.87 |
+11:34:28.4 |
HIP 15668 |
17.00 |
| 2026-05-20 12:00 |
03:23:09.18 |
+11:38:21.7 |
HIP 15857 |
20.97 |
| 2026-05-21 00:00 |
03:24:02.49 |
+11:42:13.8 |
HIP 15857 |
9.95 |
| 2026-05-21 12:00 |
03:24:55.78 |
+11:46:04.7 |
HIP 15857 |
11.35 |
| 2026-05-22 00:00 |
03:25:49.07 |
+11:49:54.4 |
HIP 15857 |
22.98 |
| 2026-05-22 12:00 |
03:26:42.35 |
+11:53:42.9 |
HIP 15904 |
35.03 |
| 2026-05-23 00:00 |
03:27:35.61 |
+11:57:30.1 |
HIP 16224 |
24.72 |
| 2026-05-23 12:00 |
03:28:28.87 |
+12:01:16.1 |
HIP 16224 |
18.70 |
| 2026-05-24 00:00 |
03:29:22.12 |
+12:05:00.9 |
HIP 16224 |
21.34 |
| 2026-05-24 12:00 |
03:30:15.36 |
+12:08:44.5 |
HIP 16338 |
17.48 |
| 2026-05-25 00:00 |
03:31:08.58 |
+12:12:26.8 |
HIP 16497 |
21.02 |
| 2026-05-25 12:00 |
03:32:01.80 |
+12:16:07.9 |
HIP 16497 |
8.13 |
| 2026-05-26 00:00 |
03:32:55.00 |
+12:19:47.8 |
HIP 16497 |
7.45 |
| 2026-05-26 12:00 |
03:33:48.19 |
+12:23:26.5 |
HIP 16497 |
20.23 |
| 2026-05-27 00:00 |
03:34:41.37 |
+12:27:03.9 |
HIP 16760 |
28.37 |
| 2026-05-27 12:00 |
03:35:34.53 |
+12:30:40.1 |
HIP 16838 |
16.85 |
| 2026-05-28 00:00 |
03:36:27.68 |
+12:34:15.1 |
HIP 16838 |
6.89 |
| 2026-05-28 12:00 |
03:37:20.82 |
+12:37:48.8 |
HIP 16838 |
13.14 |
| 2026-05-29 00:00 |
03:38:13.95 |
+12:41:21.3 |
HIP 17065 |
19.66 |
| 2026-05-29 12:00 |
03:39:07.06 |
+12:44:52.5 |
HIP 17065 |
6.58 |
| 2026-05-30 00:00 |
03:40:00.15 |
+12:48:22.5 |
HIP 17065 |
7.76 |
| 2026-05-30 12:00 |
03:40:53.24 |
+12:51:51.3 |
HIP 17235 |
17.58 |
| 2026-05-31 00:00 |
03:41:46.30 |
+12:55:18.9 |
HIP 17235 |
19.34 |
| 2026-05-31 12:00 |
03:42:39.35 |
+12:58:45.1 |
HIP 17379 |
14.58 |
| 2026-06-01 00:00 |
03:43:32.39 |
+13:02:10.2 |
HIP 17379 |
14.94 |
| 2026-06-01 12:00 |
03:44:25.41 |
+13:05:34.0 |
HIP 17557 |
19.53 |
| 2026-06-02 00:00 |
03:45:18.41 |
+13:08:56.6 |
HIP 17557 |
7.29 |