メタデータ
| 項目 |
値 |
| Designation |
313P/Gibbs |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-04-12T03:37:00.091200Z |
| Orbit solution date (soln_date, UTC) |
2026-09-04T08:42:17Z |
| Obs used |
213 |
| NEO |
- |
| M1 |
17.200 |
| 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) |
2018-03-01.0000000 |
| e |
0.23770917 |
| q (au) |
2.412749 |
| a (au) |
3.165130 |
| i (deg) |
10.949904 |
| Ω (om, deg) |
106.195709 |
| ω (w, deg) |
254.063052 |
| M (ma, deg) |
224.674098 |
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) |
| 2026-09-20 00:00 |
06:32:01.82 |
+17:54:40.9 |
HIP 31158 |
8.60 |
| 2026-09-20 12:00 |
06:32:31.90 |
+17:54:35.6 |
HIP 31158 |
8.18 |
| 2026-09-21 00:00 |
06:33:01.75 |
+17:54:30.3 |
HIP 31158 |
12.70 |
| 2026-09-21 12:00 |
06:33:31.37 |
+17:54:24.9 |
HIP 31158 |
18.83 |
| 2026-09-22 00:00 |
06:34:00.75 |
+17:54:19.3 |
HIP 31435 |
19.63 |
| 2026-09-22 12:00 |
06:34:29.88 |
+17:54:13.8 |
HIP 31435 |
14.07 |
| 2026-09-23 00:00 |
06:34:58.78 |
+17:54:08.1 |
HIP 31435 |
10.34 |
| 2026-09-23 12:00 |
06:35:27.44 |
+17:54:02.4 |
HIP 31435 |
10.48 |
| 2026-09-24 00:00 |
06:35:55.85 |
+17:53:56.7 |
HIP 31508 |
12.40 |
| 2026-09-24 12:00 |
06:36:24.02 |
+17:53:50.9 |
HIP 31508 |
14.24 |
| 2026-09-25 00:00 |
06:36:51.94 |
+17:53:45.2 |
HIP 31508 |
18.45 |
| 2026-09-25 12:00 |
06:37:19.62 |
+17:53:39.4 |
HIP 31635 |
19.92 |
| 2026-09-26 00:00 |
06:37:47.04 |
+17:53:33.7 |
HIP 31635 |
21.48 |
| 2026-09-26 12:00 |
06:38:14.21 |
+17:53:27.9 |
HIP 31857 |
22.38 |
| 2026-09-27 00:00 |
06:38:41.13 |
+17:53:22.2 |
HIP 31857 |
17.09 |
| 2026-09-27 12:00 |
06:39:07.80 |
+17:53:16.6 |
HIP 31857 |
12.89 |
| 2026-09-28 00:00 |
06:39:34.21 |
+17:53:11.0 |
HIP 31857 |
11.01 |
| 2026-09-28 12:00 |
06:40:00.36 |
+17:53:05.5 |
HIP 31857 |
12.42 |
| 2026-09-29 00:00 |
06:40:26.25 |
+17:53:00.1 |
HIP 31950 |
14.70 |
| 2026-09-29 12:00 |
06:40:51.88 |
+17:52:54.8 |
HIP 31950 |
15.01 |
| 2026-09-30 00:00 |
06:41:17.24 |
+17:52:49.5 |
HIP 31950 |
17.54 |
| 2026-09-30 12:00 |
06:41:42.34 |
+17:52:44.4 |
HIP 32104 |
17.21 |
| 2026-10-01 00:00 |
06:42:07.17 |
+17:52:39.5 |
HIP 32104 |
14.51 |
| 2026-10-01 12:00 |
06:42:31.73 |
+17:52:34.6 |
HIP 32182 |
10.28 |
| 2026-10-02 00:00 |
06:42:56.02 |
+17:52:30.0 |
HIP 32182 |
6.13 |
| 2026-10-02 12:00 |
06:43:20.04 |
+17:52:25.5 |
HIP 32182 |
5.98 |
| 2026-10-03 00:00 |
06:43:43.77 |
+17:52:21.2 |
HIP 32182 |
9.91 |
| 2026-10-03 12:00 |
06:44:07.23 |
+17:52:17.1 |
HIP 32182 |
14.92 |
| 2026-10-04 00:00 |
06:44:30.41 |
+17:52:13.2 |
HIP 32182 |
20.16 |
| 2026-10-04 12:00 |
06:44:53.31 |
+17:52:09.6 |
HIP 32182 |
25.45 |
| 2026-10-05 00:00 |
06:45:15.92 |
+17:52:06.2 |
HIP 32182 |
30.73 |
| 2026-10-05 12:00 |
06:45:38.25 |
+17:52:03.0 |
HIP 32539 |
31.75 |
| 2026-10-06 00:00 |
06:46:00.29 |
+17:52:00.1 |
HIP 32539 |
27.85 |
| 2026-10-06 12:00 |
06:46:22.03 |
+17:51:57.5 |
HIP 32539 |
24.49 |
| 2026-10-07 00:00 |
06:46:43.48 |
+17:51:55.2 |
HIP 32539 |
21.87 |
| 2026-10-07 12:00 |
06:47:04.64 |
+17:51:53.2 |
HIP 32539 |
20.23 |
| 2026-10-08 00:00 |
06:47:25.50 |
+17:51:51.5 |
HIP 32539 |
19.76 |
| 2026-10-08 12:00 |
06:47:46.06 |
+17:51:50.2 |
HIP 32539 |
20.49 |
| 2026-10-09 00:00 |
06:48:06.32 |
+17:51:49.2 |
HIP 32539 |
22.26 |
| 2026-10-09 12:00 |
06:48:26.28 |
+17:51:48.6 |
HIP 32755 |
21.28 |
| 2026-10-10 00:00 |
06:48:45.93 |
+17:51:48.4 |
HIP 32755 |
17.00 |
| 2026-10-10 12:00 |
06:49:05.27 |
+17:51:48.5 |
HIP 32755 |
13.03 |
| 2026-10-11 00:00 |
06:49:24.31 |
+17:51:49.1 |
HIP 32755 |
9.70 |