メタデータ
| 項目 |
値 |
| Designation |
C/2010 M1 (Gibbs) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-12-07T17:29:11.739840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:44Z |
| Obs used |
24 |
| NEO |
- |
| M1 |
7.400 |
| K1 |
10.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-06-21.0000000 |
| e |
1.00392663 |
| q (au) |
7.977048 |
| a (au) |
-2031.524363 |
| i (deg) |
116.576314 |
| Ω (om, deg) |
66.486160 |
| ω (w, deg) |
167.188855 |
| M (ma, deg) |
-0.001827 |
等級
散乱 + 全体線形
$$
M_a = (10.035 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.035 |
| n |
6.000 |
| gf |
0.994 |
| gb |
-0.938 |
| k |
0.800 |
| δ90 |
8.525 |
| 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 |
07:40:01.33 |
-38:53:43.1 |
HIP 37303 |
6.46 |
| 2026-09-20 12:00 |
07:40:02.92 |
-38:54:26.4 |
HIP 37303 |
6.99 |
| 2026-09-21 00:00 |
07:40:04.48 |
-38:55:09.8 |
HIP 37303 |
7.56 |
| 2026-09-21 12:00 |
07:40:06.00 |
-38:55:53.4 |
HIP 37303 |
8.16 |
| 2026-09-22 00:00 |
07:40:07.49 |
-38:56:37.1 |
HIP 37303 |
8.79 |
| 2026-09-22 12:00 |
07:40:08.93 |
-38:57:21.0 |
HIP 37303 |
9.43 |
| 2026-09-23 00:00 |
07:40:10.34 |
-38:58:05.0 |
HIP 37303 |
10.09 |
| 2026-09-23 12:00 |
07:40:11.71 |
-38:58:49.1 |
HIP 37303 |
10.76 |
| 2026-09-24 00:00 |
07:40:13.04 |
-38:59:33.4 |
HIP 37303 |
11.45 |
| 2026-09-24 12:00 |
07:40:14.33 |
-39:00:17.8 |
HIP 37303 |
12.14 |
| 2026-09-25 00:00 |
07:40:15.58 |
-39:01:02.4 |
HIP 37303 |
12.83 |
| 2026-09-25 12:00 |
07:40:16.79 |
-39:01:47.1 |
HIP 37303 |
13.53 |
| 2026-09-26 00:00 |
07:40:17.96 |
-39:02:31.9 |
HIP 37303 |
14.24 |
| 2026-09-26 12:00 |
07:40:19.10 |
-39:03:16.8 |
HIP 37303 |
14.95 |
| 2026-09-27 00:00 |
07:40:20.19 |
-39:04:01.8 |
HIP 37446 |
14.60 |
| 2026-09-27 12:00 |
07:40:21.24 |
-39:04:46.9 |
HIP 37446 |
13.94 |
| 2026-09-28 00:00 |
07:40:22.26 |
-39:05:32.2 |
HIP 37446 |
13.29 |
| 2026-09-28 12:00 |
07:40:23.23 |
-39:06:17.6 |
HIP 37446 |
12.66 |
| 2026-09-29 00:00 |
07:40:24.16 |
-39:07:03.0 |
HIP 37446 |
12.06 |
| 2026-09-29 12:00 |
07:40:25.06 |
-39:07:48.6 |
HIP 37446 |
11.48 |
| 2026-09-30 00:00 |
07:40:25.91 |
-39:08:34.3 |
HIP 37446 |
10.93 |
| 2026-09-30 12:00 |
07:40:26.72 |
-39:09:20.0 |
HIP 37446 |
10.42 |
| 2026-10-01 00:00 |
07:40:27.49 |
-39:10:05.9 |
HIP 37446 |
9.95 |
| 2026-10-01 12:00 |
07:40:28.22 |
-39:10:51.8 |
HIP 37446 |
9.53 |
| 2026-10-02 00:00 |
07:40:28.91 |
-39:11:37.9 |
HIP 37446 |
9.16 |
| 2026-10-02 12:00 |
07:40:29.55 |
-39:12:24.0 |
HIP 37446 |
8.85 |
| 2026-10-03 00:00 |
07:40:30.16 |
-39:13:10.2 |
HIP 37446 |
8.61 |
| 2026-10-03 12:00 |
07:40:30.72 |
-39:13:56.4 |
HIP 37446 |
8.45 |
| 2026-10-04 00:00 |
07:40:31.24 |
-39:14:42.8 |
HIP 37446 |
8.36 |
| 2026-10-04 12:00 |
07:40:31.72 |
-39:15:29.1 |
HIP 37446 |
8.35 |
| 2026-10-05 00:00 |
07:40:32.16 |
-39:16:15.6 |
HIP 37446 |
8.42 |
| 2026-10-05 12:00 |
07:40:32.56 |
-39:17:02.1 |
HIP 37373 |
8.57 |
| 2026-10-06 00:00 |
07:40:32.91 |
-39:17:48.7 |
HIP 37373 |
7.85 |
| 2026-10-06 12:00 |
07:40:33.22 |
-39:18:35.3 |
HIP 37373 |
7.14 |
| 2026-10-07 00:00 |
07:40:33.49 |
-39:19:22.0 |
HIP 37373 |
6.44 |
| 2026-10-07 12:00 |
07:40:33.71 |
-39:20:08.7 |
HIP 37373 |
5.76 |
| 2026-10-08 00:00 |
07:40:33.89 |
-39:20:55.5 |
HIP 37373 |
5.10 |
| 2026-10-08 12:00 |
07:40:34.03 |
-39:21:42.3 |
HIP 37373 |
4.47 |
| 2026-10-09 00:00 |
07:40:34.12 |
-39:22:29.1 |
HIP 37373 |
3.89 |
| 2026-10-09 12:00 |
07:40:34.17 |
-39:23:16.0 |
HIP 37373 |
3.39 |
| 2026-10-10 00:00 |
07:40:34.18 |
-39:24:02.8 |
HIP 37373 |
3.00 |
| 2026-10-10 12:00 |
07:40:34.15 |
-39:24:49.7 |
HIP 37373 |
2.77 |
| 2026-10-11 00:00 |
07:40:34.07 |
-39:25:36.6 |
HIP 37373 |
2.75 |