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) |
| 2026-05-12 00:00 |
06:46:26.79 |
-16:17:15.9 |
HIP 32349 |
31.57 |
| 2026-05-12 12:00 |
06:46:28.62 |
-16:16:57.5 |
HIP 32349 |
32.08 |
| 2026-05-13 00:00 |
06:46:30.48 |
-16:16:39.2 |
HIP 32349 |
32.59 |
| 2026-05-13 12:00 |
06:46:32.35 |
-16:16:21.2 |
HIP 32664 |
32.95 |
| 2026-05-14 00:00 |
06:46:34.23 |
-16:16:03.3 |
HIP 32664 |
32.47 |
| 2026-05-14 12:00 |
06:46:36.14 |
-16:15:45.6 |
HIP 32664 |
31.99 |
| 2026-05-15 00:00 |
06:46:38.06 |
-16:15:28.0 |
HIP 32664 |
31.50 |
| 2026-05-15 12:00 |
06:46:40.00 |
-16:15:10.6 |
HIP 32664 |
31.01 |
| 2026-05-16 00:00 |
06:46:41.96 |
-16:14:53.4 |
HIP 32664 |
30.52 |
| 2026-05-16 12:00 |
06:46:43.93 |
-16:14:36.4 |
HIP 32664 |
30.03 |
| 2026-05-17 00:00 |
06:46:45.92 |
-16:14:19.5 |
HIP 32664 |
29.54 |
| 2026-05-17 12:00 |
06:46:47.93 |
-16:14:02.9 |
HIP 32664 |
29.04 |
| 2026-05-18 00:00 |
06:46:49.95 |
-16:13:46.4 |
HIP 32664 |
28.55 |
| 2026-05-18 12:00 |
06:46:51.99 |
-16:13:30.0 |
HIP 32664 |
28.05 |
| 2026-05-19 00:00 |
06:46:54.05 |
-16:13:13.9 |
HIP 32664 |
27.55 |
| 2026-05-19 12:00 |
06:46:56.12 |
-16:12:58.0 |
HIP 32664 |
27.05 |
| 2026-05-20 00:00 |
06:46:58.21 |
-16:12:42.2 |
HIP 32664 |
26.55 |
| 2026-05-20 12:00 |
06:47:00.31 |
-16:12:26.6 |
HIP 32664 |
26.04 |
| 2026-05-21 00:00 |
06:47:02.43 |
-16:12:11.2 |
HIP 32664 |
25.54 |
| 2026-05-21 12:00 |
06:47:04.56 |
-16:11:56.0 |
HIP 32664 |
25.03 |
| 2026-05-22 00:00 |
06:47:06.71 |
-16:11:41.0 |
HIP 32664 |
24.53 |
| 2026-05-22 12:00 |
06:47:08.87 |
-16:11:26.1 |
HIP 32664 |
24.02 |
| 2026-05-23 00:00 |
06:47:11.05 |
-16:11:11.5 |
HIP 32664 |
23.51 |
| 2026-05-23 12:00 |
06:47:13.24 |
-16:10:57.0 |
HIP 32664 |
23.00 |
| 2026-05-24 00:00 |
06:47:15.44 |
-16:10:42.7 |
HIP 32664 |
22.50 |
| 2026-05-24 12:00 |
06:47:17.66 |
-16:10:28.6 |
HIP 32664 |
21.99 |
| 2026-05-25 00:00 |
06:47:19.90 |
-16:10:14.7 |
HIP 32664 |
21.48 |
| 2026-05-25 12:00 |
06:47:22.14 |
-16:10:01.0 |
HIP 32664 |
20.97 |
| 2026-05-26 00:00 |
06:47:24.41 |
-16:09:47.5 |
HIP 32664 |
20.46 |
| 2026-05-26 12:00 |
06:47:26.68 |
-16:09:34.2 |
HIP 32664 |
19.96 |
| 2026-05-27 00:00 |
06:47:28.97 |
-16:09:21.1 |
HIP 32664 |
19.45 |
| 2026-05-27 12:00 |
06:47:31.27 |
-16:09:08.1 |
HIP 32664 |
18.95 |
| 2026-05-28 00:00 |
06:47:33.58 |
-16:08:55.4 |
HIP 32664 |
18.44 |
| 2026-05-28 12:00 |
06:47:35.91 |
-16:08:42.8 |
HIP 32664 |
17.94 |
| 2026-05-29 00:00 |
06:47:38.25 |
-16:08:30.5 |
HIP 32664 |
17.44 |
| 2026-05-29 12:00 |
06:47:40.60 |
-16:08:18.3 |
HIP 32664 |
16.95 |
| 2026-05-30 00:00 |
06:47:42.97 |
-16:08:06.4 |
HIP 32664 |
16.45 |
| 2026-05-30 12:00 |
06:47:45.34 |
-16:07:54.6 |
HIP 32664 |
15.96 |
| 2026-05-31 00:00 |
06:47:47.73 |
-16:07:43.0 |
HIP 32664 |
15.48 |
| 2026-05-31 12:00 |
06:47:50.13 |
-16:07:31.7 |
HIP 32664 |
15.00 |
| 2026-06-01 00:00 |
06:47:52.54 |
-16:07:20.5 |
HIP 32664 |
14.52 |
| 2026-06-01 12:00 |
06:47:54.97 |
-16:07:09.5 |
HIP 32664 |
14.05 |
| 2026-06-02 00:00 |
06:47:57.40 |
-16:06:58.8 |
HIP 32664 |
13.59 |