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) |
| 2026-07-29 00:00 |
06:53:04.60 |
-16:09:28.8 |
HIP 33013 |
5.53 |
| 2026-07-29 12:00 |
06:53:07.15 |
-16:09:41.9 |
HIP 33013 |
5.92 |
| 2026-07-30 00:00 |
06:53:09.69 |
-16:09:55.2 |
HIP 33013 |
6.35 |
| 2026-07-30 12:00 |
06:53:12.22 |
-16:10:08.7 |
HIP 33013 |
6.81 |
| 2026-07-31 00:00 |
06:53:14.73 |
-16:10:22.3 |
HIP 33013 |
7.29 |
| 2026-07-31 12:00 |
06:53:17.24 |
-16:10:36.2 |
HIP 33013 |
7.80 |
| 2026-08-01 00:00 |
06:53:19.74 |
-16:10:50.2 |
HIP 33013 |
8.32 |
| 2026-08-01 12:00 |
06:53:22.23 |
-16:11:04.4 |
HIP 33013 |
8.86 |
| 2026-08-02 00:00 |
06:53:24.71 |
-16:11:18.8 |
HIP 33013 |
9.40 |
| 2026-08-02 12:00 |
06:53:27.18 |
-16:11:33.4 |
HIP 33013 |
9.96 |
| 2026-08-03 00:00 |
06:53:29.64 |
-16:11:48.1 |
HIP 33013 |
10.52 |
| 2026-08-03 12:00 |
06:53:32.09 |
-16:12:03.0 |
HIP 33013 |
11.09 |
| 2026-08-04 00:00 |
06:53:34.52 |
-16:12:18.1 |
HIP 33013 |
11.66 |
| 2026-08-04 12:00 |
06:53:36.95 |
-16:12:33.4 |
HIP 33013 |
12.23 |
| 2026-08-05 00:00 |
06:53:39.36 |
-16:12:48.9 |
HIP 33013 |
12.81 |
| 2026-08-05 12:00 |
06:53:41.77 |
-16:13:04.5 |
HIP 33013 |
13.39 |
| 2026-08-06 00:00 |
06:53:44.16 |
-16:13:20.3 |
HIP 33013 |
13.97 |
| 2026-08-06 12:00 |
06:53:46.53 |
-16:13:36.3 |
HIP 33013 |
14.56 |
| 2026-08-07 00:00 |
06:53:48.90 |
-16:13:52.4 |
HIP 33013 |
15.14 |
| 2026-08-07 12:00 |
06:53:51.26 |
-16:14:08.8 |
HIP 33013 |
15.73 |
| 2026-08-08 00:00 |
06:53:53.60 |
-16:14:25.3 |
HIP 33013 |
16.31 |
| 2026-08-08 12:00 |
06:53:55.93 |
-16:14:41.9 |
HIP 33013 |
16.90 |
| 2026-08-09 00:00 |
06:53:58.24 |
-16:14:58.8 |
HIP 33013 |
17.49 |
| 2026-08-09 12:00 |
06:54:00.55 |
-16:15:15.8 |
HIP 33013 |
18.07 |
| 2026-08-10 00:00 |
06:54:02.84 |
-16:15:32.9 |
HIP 33013 |
18.66 |
| 2026-08-10 12:00 |
06:54:05.12 |
-16:15:50.3 |
HIP 33013 |
19.24 |
| 2026-08-11 00:00 |
06:54:07.38 |
-16:16:07.8 |
HIP 33250 |
19.25 |
| 2026-08-11 12:00 |
06:54:09.63 |
-16:16:25.4 |
HIP 33250 |
18.66 |
| 2026-08-12 00:00 |
06:54:11.87 |
-16:16:43.2 |
HIP 33250 |
18.08 |
| 2026-08-12 12:00 |
06:54:14.09 |
-16:17:01.2 |
HIP 33250 |
17.49 |
| 2026-08-13 00:00 |
06:54:16.30 |
-16:17:19.4 |
HIP 33250 |
16.91 |
| 2026-08-13 12:00 |
06:54:18.49 |
-16:17:37.7 |
HIP 33250 |
16.33 |
| 2026-08-14 00:00 |
06:54:20.67 |
-16:17:56.1 |
HIP 33250 |
15.75 |
| 2026-08-14 12:00 |
06:54:22.84 |
-16:18:14.8 |
HIP 33250 |
15.18 |
| 2026-08-15 00:00 |
06:54:24.99 |
-16:18:33.5 |
HIP 33250 |
14.61 |
| 2026-08-15 12:00 |
06:54:27.12 |
-16:18:52.5 |
HIP 33250 |
14.04 |
| 2026-08-16 00:00 |
06:54:29.24 |
-16:19:11.6 |
HIP 33250 |
13.47 |
| 2026-08-16 12:00 |
06:54:31.35 |
-16:19:30.8 |
HIP 33250 |
12.91 |
| 2026-08-17 00:00 |
06:54:33.44 |
-16:19:50.2 |
HIP 33250 |
12.35 |
| 2026-08-17 12:00 |
06:54:35.51 |
-16:20:09.7 |
HIP 33250 |
11.79 |
| 2026-08-18 00:00 |
06:54:37.57 |
-16:20:29.4 |
HIP 33250 |
11.24 |
| 2026-08-18 12:00 |
06:54:39.61 |
-16:20:49.2 |
HIP 33250 |
10.69 |
| 2026-08-19 00:00 |
06:54:41.64 |
-16:21:09.1 |
HIP 33250 |
10.15 |