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) |
| 2026-07-29 00:00 |
07:34:24.49 |
-38:01:37.3 |
HIP 36653 |
26.62 |
| 2026-07-29 12:00 |
07:34:28.73 |
-38:01:49.2 |
HIP 36653 |
27.34 |
| 2026-07-30 00:00 |
07:34:32.96 |
-38:02:01.4 |
HIP 36653 |
28.07 |
| 2026-07-30 12:00 |
07:34:37.17 |
-38:02:14.0 |
HIP 36653 |
28.80 |
| 2026-07-31 00:00 |
07:34:41.38 |
-38:02:27.0 |
HIP 36653 |
29.53 |
| 2026-07-31 12:00 |
07:34:45.57 |
-38:02:40.4 |
HIP 36653 |
30.27 |
| 2026-08-01 00:00 |
07:34:49.76 |
-38:02:54.2 |
HIP 36653 |
31.01 |
| 2026-08-01 12:00 |
07:34:53.93 |
-38:03:08.3 |
HIP 36653 |
31.75 |
| 2026-08-02 00:00 |
07:34:58.09 |
-38:03:22.9 |
HIP 36653 |
32.49 |
| 2026-08-02 12:00 |
07:35:02.24 |
-38:03:37.8 |
HIP 37123 |
32.13 |
| 2026-08-03 00:00 |
07:35:06.37 |
-38:03:53.1 |
HIP 37123 |
31.38 |
| 2026-08-03 12:00 |
07:35:10.49 |
-38:04:08.9 |
HIP 37128 |
30.63 |
| 2026-08-04 00:00 |
07:35:14.60 |
-38:04:24.9 |
HIP 37128 |
29.86 |
| 2026-08-04 12:00 |
07:35:18.70 |
-38:04:41.4 |
HIP 37128 |
29.09 |
| 2026-08-05 00:00 |
07:35:22.78 |
-38:04:58.3 |
HIP 37128 |
28.34 |
| 2026-08-05 12:00 |
07:35:26.85 |
-38:05:15.5 |
HIP 37128 |
27.59 |
| 2026-08-06 00:00 |
07:35:30.90 |
-38:05:33.1 |
HIP 37128 |
26.86 |
| 2026-08-06 12:00 |
07:35:34.94 |
-38:05:51.1 |
HIP 37128 |
26.13 |
| 2026-08-07 00:00 |
07:35:38.97 |
-38:06:09.4 |
HIP 37128 |
25.42 |
| 2026-08-07 12:00 |
07:35:42.98 |
-38:06:28.2 |
HIP 37128 |
24.72 |
| 2026-08-08 00:00 |
07:35:46.97 |
-38:06:47.3 |
HIP 37128 |
24.04 |
| 2026-08-08 12:00 |
07:35:50.95 |
-38:07:06.7 |
HIP 37128 |
23.37 |
| 2026-08-09 00:00 |
07:35:54.91 |
-38:07:26.6 |
HIP 37128 |
22.72 |
| 2026-08-09 12:00 |
07:35:58.85 |
-38:07:46.8 |
HIP 37128 |
22.08 |
| 2026-08-10 00:00 |
07:36:02.78 |
-38:08:07.4 |
HIP 37128 |
21.47 |
| 2026-08-10 12:00 |
07:36:06.69 |
-38:08:28.3 |
HIP 37128 |
20.88 |
| 2026-08-11 00:00 |
07:36:10.59 |
-38:08:49.6 |
HIP 37128 |
20.31 |
| 2026-08-11 12:00 |
07:36:14.47 |
-38:09:11.3 |
HIP 37128 |
19.77 |
| 2026-08-12 00:00 |
07:36:18.32 |
-38:09:33.4 |
HIP 37128 |
19.25 |
| 2026-08-12 12:00 |
07:36:22.16 |
-38:09:55.7 |
HIP 37128 |
18.77 |
| 2026-08-13 00:00 |
07:36:25.98 |
-38:10:18.5 |
HIP 37128 |
18.32 |
| 2026-08-13 12:00 |
07:36:29.79 |
-38:10:41.6 |
HIP 37128 |
17.90 |
| 2026-08-14 00:00 |
07:36:33.57 |
-38:11:05.1 |
HIP 37128 |
17.52 |
| 2026-08-14 12:00 |
07:36:37.33 |
-38:11:28.9 |
HIP 37128 |
17.18 |
| 2026-08-15 00:00 |
07:36:41.08 |
-38:11:53.0 |
HIP 37128 |
16.88 |
| 2026-08-15 12:00 |
07:36:44.80 |
-38:12:17.5 |
HIP 37128 |
16.62 |
| 2026-08-16 00:00 |
07:36:48.50 |
-38:12:42.4 |
HIP 37128 |
16.41 |
| 2026-08-16 12:00 |
07:36:52.18 |
-38:13:07.6 |
HIP 37128 |
16.25 |
| 2026-08-17 00:00 |
07:36:55.84 |
-38:13:33.1 |
HIP 37128 |
16.14 |
| 2026-08-17 12:00 |
07:36:59.48 |
-38:13:59.0 |
HIP 37128 |
16.08 |
| 2026-08-18 00:00 |
07:37:03.10 |
-38:14:25.2 |
HIP 37128 |
16.06 |
| 2026-08-18 12:00 |
07:37:06.70 |
-38:14:51.8 |
HIP 37128 |
16.10 |
| 2026-08-19 00:00 |
07:37:10.27 |
-38:15:18.6 |
HIP 37128 |
16.19 |