メタデータ
| 項目 |
値 |
| Designation |
C/2006 L3 (SOHO) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-06-02T08:09:36Z |
| Orbit solution date (soln_date, UTC) |
- |
| Obs used |
14 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2006-06-02.3400000 |
| e |
1.00000000 |
| q (au) |
0.004900 |
| a (au) |
- |
| i (deg) |
140.310000 |
| Ω (om, deg) |
15.420000 |
| ω (w, deg) |
90.980000 |
| M (ma, deg) |
- |
等級
散乱 + 全体線形
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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 |
06:56:12.26 |
-16:46:22.0 |
HIP 33347 |
16.91 |
| 2026-09-20 12:00 |
06:56:12.98 |
-16:46:48.2 |
HIP 33347 |
16.49 |
| 2026-09-21 00:00 |
06:56:13.68 |
-16:47:14.5 |
HIP 33347 |
16.07 |
| 2026-09-21 12:00 |
06:56:14.35 |
-16:47:40.7 |
HIP 33347 |
15.64 |
| 2026-09-22 00:00 |
06:56:15.01 |
-16:48:07.1 |
HIP 33347 |
15.22 |
| 2026-09-22 12:00 |
06:56:15.63 |
-16:48:33.4 |
HIP 33347 |
14.80 |
| 2026-09-23 00:00 |
06:56:16.24 |
-16:48:59.8 |
HIP 33347 |
14.39 |
| 2026-09-23 12:00 |
06:56:16.82 |
-16:49:26.2 |
HIP 33347 |
13.97 |
| 2026-09-24 00:00 |
06:56:17.38 |
-16:49:52.6 |
HIP 33347 |
13.56 |
| 2026-09-24 12:00 |
06:56:17.91 |
-16:50:19.1 |
HIP 33347 |
13.14 |
| 2026-09-25 00:00 |
06:56:18.42 |
-16:50:45.6 |
HIP 33347 |
12.73 |
| 2026-09-25 12:00 |
06:56:18.91 |
-16:51:12.1 |
HIP 33347 |
12.32 |
| 2026-09-26 00:00 |
06:56:19.37 |
-16:51:38.6 |
HIP 33347 |
11.91 |
| 2026-09-26 12:00 |
06:56:19.81 |
-16:52:05.1 |
HIP 33347 |
11.51 |
| 2026-09-27 00:00 |
06:56:20.23 |
-16:52:31.7 |
HIP 33347 |
11.10 |
| 2026-09-27 12:00 |
06:56:20.62 |
-16:52:58.3 |
HIP 33347 |
10.70 |
| 2026-09-28 00:00 |
06:56:20.98 |
-16:53:24.9 |
HIP 33347 |
10.30 |
| 2026-09-28 12:00 |
06:56:21.32 |
-16:53:51.5 |
HIP 33347 |
9.90 |
| 2026-09-29 00:00 |
06:56:21.64 |
-16:54:18.2 |
HIP 33347 |
9.51 |
| 2026-09-29 12:00 |
06:56:21.94 |
-16:54:44.8 |
HIP 33347 |
9.12 |
| 2026-09-30 00:00 |
06:56:22.21 |
-16:55:11.4 |
HIP 33347 |
8.73 |
| 2026-09-30 12:00 |
06:56:22.45 |
-16:55:38.1 |
HIP 33347 |
8.34 |
| 2026-10-01 00:00 |
06:56:22.67 |
-16:56:04.7 |
HIP 33347 |
7.96 |
| 2026-10-01 12:00 |
06:56:22.87 |
-16:56:31.4 |
HIP 33347 |
7.59 |
| 2026-10-02 00:00 |
06:56:23.04 |
-16:56:58.1 |
HIP 33347 |
7.22 |
| 2026-10-02 12:00 |
06:56:23.19 |
-16:57:24.7 |
HIP 33347 |
6.85 |
| 2026-10-03 00:00 |
06:56:23.31 |
-16:57:51.4 |
HIP 33347 |
6.49 |
| 2026-10-03 12:00 |
06:56:23.41 |
-16:58:18.0 |
HIP 33347 |
6.14 |
| 2026-10-04 00:00 |
06:56:23.48 |
-16:58:44.7 |
HIP 33347 |
5.80 |
| 2026-10-04 12:00 |
06:56:23.53 |
-16:59:11.3 |
HIP 33347 |
5.47 |
| 2026-10-05 00:00 |
06:56:23.56 |
-16:59:37.9 |
HIP 33347 |
5.15 |
| 2026-10-05 12:00 |
06:56:23.55 |
-17:00:04.5 |
HIP 33347 |
4.85 |
| 2026-10-06 00:00 |
06:56:23.53 |
-17:00:31.1 |
HIP 33347 |
4.57 |
| 2026-10-06 12:00 |
06:56:23.48 |
-17:00:57.7 |
HIP 33347 |
4.31 |
| 2026-10-07 00:00 |
06:56:23.40 |
-17:01:24.2 |
HIP 33347 |
4.07 |
| 2026-10-07 12:00 |
06:56:23.30 |
-17:01:50.8 |
HIP 33347 |
3.87 |
| 2026-10-08 00:00 |
06:56:23.18 |
-17:02:17.3 |
HIP 33347 |
3.70 |
| 2026-10-08 12:00 |
06:56:23.03 |
-17:02:43.8 |
HIP 33347 |
3.58 |
| 2026-10-09 00:00 |
06:56:22.85 |
-17:03:10.2 |
HIP 33347 |
3.50 |
| 2026-10-09 12:00 |
06:56:22.65 |
-17:03:36.7 |
HIP 33347 |
3.47 |
| 2026-10-10 00:00 |
06:56:22.42 |
-17:04:03.0 |
HIP 33347 |
3.49 |
| 2026-10-10 12:00 |
06:56:22.17 |
-17:04:29.4 |
HIP 33347 |
3.55 |
| 2026-10-11 00:00 |
06:56:21.90 |
-17:04:55.7 |
HIP 33347 |
3.67 |