メタデータ
| 項目 |
値 |
| Designation |
C/2010 E5 (Scotti) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2009-11-21T10:42:02.502720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:41Z |
| Obs used |
121 |
| NEO |
- |
| M1 |
7.300 |
| K1 |
17.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-04-02.0000000 |
| e |
0.84273939 |
| q (au) |
3.888445 |
| a (au) |
24.726120 |
| i (deg) |
18.910164 |
| Ω (om, deg) |
17.083811 |
| ω (w, deg) |
147.858249 |
| M (ma, deg) |
1.054568 |
等級
散乱 + 全体線形
$$
M_a = (17.476 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.476 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.727 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
21:37:07.41 |
-32:07:32.0 |
HIP 106880 |
26.18 |
| 2026-09-20 12:00 |
21:37:03.88 |
-32:07:33.2 |
HIP 106623 |
25.91 |
| 2026-09-21 00:00 |
21:37:00.36 |
-32:07:34.1 |
HIP 106623 |
25.44 |
| 2026-09-21 12:00 |
21:36:56.88 |
-32:07:34.9 |
HIP 106623 |
24.99 |
| 2026-09-22 00:00 |
21:36:53.42 |
-32:07:35.3 |
HIP 106623 |
24.55 |
| 2026-09-22 12:00 |
21:36:49.99 |
-32:07:35.5 |
HIP 106623 |
24.14 |
| 2026-09-23 00:00 |
21:36:46.58 |
-32:07:35.5 |
HIP 106623 |
23.75 |
| 2026-09-23 12:00 |
21:36:43.21 |
-32:07:35.2 |
HIP 106623 |
23.38 |
| 2026-09-24 00:00 |
21:36:39.86 |
-32:07:34.7 |
HIP 106623 |
23.04 |
| 2026-09-24 12:00 |
21:36:36.54 |
-32:07:33.9 |
HIP 106623 |
22.71 |
| 2026-09-25 00:00 |
21:36:33.25 |
-32:07:32.9 |
HIP 106623 |
22.41 |
| 2026-09-25 12:00 |
21:36:29.99 |
-32:07:31.6 |
HIP 106623 |
22.14 |
| 2026-09-26 00:00 |
21:36:26.75 |
-32:07:30.0 |
HIP 106623 |
21.89 |
| 2026-09-26 12:00 |
21:36:23.55 |
-32:07:28.3 |
HIP 106623 |
21.66 |
| 2026-09-27 00:00 |
21:36:20.38 |
-32:07:26.2 |
HIP 106623 |
21.46 |
| 2026-09-27 12:00 |
21:36:17.23 |
-32:07:23.9 |
HIP 106623 |
21.29 |
| 2026-09-28 00:00 |
21:36:14.12 |
-32:07:21.4 |
HIP 106623 |
21.14 |
| 2026-09-28 12:00 |
21:36:11.04 |
-32:07:18.6 |
HIP 106623 |
21.02 |
| 2026-09-29 00:00 |
21:36:07.98 |
-32:07:15.6 |
HIP 106623 |
20.92 |
| 2026-09-29 12:00 |
21:36:04.96 |
-32:07:12.4 |
HIP 106623 |
20.84 |
| 2026-09-30 00:00 |
21:36:01.97 |
-32:07:08.8 |
HIP 106623 |
20.79 |
| 2026-09-30 12:00 |
21:35:59.01 |
-32:07:05.1 |
HIP 106623 |
20.77 |
| 2026-10-01 00:00 |
21:35:56.08 |
-32:07:01.1 |
HIP 106623 |
20.76 |
| 2026-10-01 12:00 |
21:35:53.19 |
-32:06:56.8 |
HIP 106623 |
20.78 |
| 2026-10-02 00:00 |
21:35:50.32 |
-32:06:52.3 |
HIP 106623 |
20.83 |
| 2026-10-02 12:00 |
21:35:47.49 |
-32:06:47.5 |
HIP 106623 |
20.89 |
| 2026-10-03 00:00 |
21:35:44.69 |
-32:06:42.5 |
HIP 106623 |
20.98 |
| 2026-10-03 12:00 |
21:35:41.93 |
-32:06:37.3 |
HIP 106623 |
21.09 |
| 2026-10-04 00:00 |
21:35:39.20 |
-32:06:31.8 |
HIP 106623 |
21.21 |
| 2026-10-04 12:00 |
21:35:36.50 |
-32:06:26.1 |
HIP 106623 |
21.36 |
| 2026-10-05 00:00 |
21:35:33.83 |
-32:06:20.1 |
HIP 106623 |
21.52 |
| 2026-10-05 12:00 |
21:35:31.20 |
-32:06:13.9 |
HIP 106623 |
21.70 |
| 2026-10-06 00:00 |
21:35:28.61 |
-32:06:07.4 |
HIP 106623 |
21.90 |
| 2026-10-06 12:00 |
21:35:26.05 |
-32:06:00.7 |
HIP 106623 |
22.11 |
| 2026-10-07 00:00 |
21:35:23.52 |
-32:05:53.7 |
HIP 106623 |
22.33 |
| 2026-10-07 12:00 |
21:35:21.03 |
-32:05:46.5 |
HIP 106623 |
22.57 |
| 2026-10-08 00:00 |
21:35:18.57 |
-32:05:39.1 |
HIP 106623 |
22.82 |
| 2026-10-08 12:00 |
21:35:16.15 |
-32:05:31.4 |
HIP 106623 |
23.08 |
| 2026-10-09 00:00 |
21:35:13.76 |
-32:05:23.4 |
HIP 106623 |
23.35 |
| 2026-10-09 12:00 |
21:35:11.41 |
-32:05:15.3 |
HIP 106623 |
23.64 |
| 2026-10-10 00:00 |
21:35:09.10 |
-32:05:06.9 |
HIP 106623 |
23.93 |
| 2026-10-10 12:00 |
21:35:06.82 |
-32:04:58.2 |
HIP 106623 |
24.23 |
| 2026-10-11 00:00 |
21:35:04.58 |
-32:04:49.3 |
HIP 106623 |
24.53 |