メタデータ
| 項目 |
値 |
| Designation |
C/2006 X1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-03-05T17:06:21.522240Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:03Z |
| Obs used |
95 |
| NEO |
- |
| M1 |
6.900 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2006-12-21.0000000 |
| e |
1.00000000 |
| q (au) |
6.126054 |
| a (au) |
- |
| i (deg) |
42.617795 |
| Ω (om, deg) |
255.242287 |
| ω (w, deg) |
101.283664 |
| M (ma, deg) |
- |
等級
散乱 + 全体線形
$$
M_a = (10.097 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.097 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.706 |
| k |
1.000 |
| 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 |
07:46:47.91 |
-11:47:43.6 |
HIP 37941 |
7.19 |
| 2026-09-20 12:00 |
07:46:49.55 |
-11:48:12.5 |
HIP 37941 |
7.81 |
| 2026-09-21 00:00 |
07:46:51.17 |
-11:48:41.5 |
HIP 37941 |
8.42 |
| 2026-09-21 12:00 |
07:46:52.77 |
-11:49:10.6 |
HIP 37941 |
9.03 |
| 2026-09-22 00:00 |
07:46:54.34 |
-11:49:39.7 |
HIP 37941 |
9.64 |
| 2026-09-22 12:00 |
07:46:55.89 |
-11:50:08.9 |
HIP 37941 |
10.25 |
| 2026-09-23 00:00 |
07:46:57.42 |
-11:50:38.1 |
HIP 37941 |
10.86 |
| 2026-09-23 12:00 |
07:46:58.92 |
-11:51:07.3 |
HIP 37941 |
11.47 |
| 2026-09-24 00:00 |
07:47:00.40 |
-11:51:36.6 |
HIP 37941 |
12.07 |
| 2026-09-24 12:00 |
07:47:01.85 |
-11:52:06.0 |
HIP 37941 |
12.68 |
| 2026-09-25 00:00 |
07:47:03.28 |
-11:52:35.3 |
HIP 37941 |
13.28 |
| 2026-09-25 12:00 |
07:47:04.69 |
-11:53:04.7 |
HIP 37941 |
13.87 |
| 2026-09-26 00:00 |
07:47:06.07 |
-11:53:34.2 |
HIP 37941 |
14.47 |
| 2026-09-26 12:00 |
07:47:07.42 |
-11:54:03.7 |
HIP 37941 |
15.06 |
| 2026-09-27 00:00 |
07:47:08.75 |
-11:54:33.2 |
HIP 37941 |
15.65 |
| 2026-09-27 12:00 |
07:47:10.06 |
-11:55:02.7 |
HIP 37941 |
16.24 |
| 2026-09-28 00:00 |
07:47:11.34 |
-11:55:32.3 |
HIP 37941 |
16.82 |
| 2026-09-28 12:00 |
07:47:12.60 |
-11:56:01.9 |
HIP 37941 |
17.40 |
| 2026-09-29 00:00 |
07:47:13.83 |
-11:56:31.5 |
HIP 37941 |
17.98 |
| 2026-09-29 12:00 |
07:47:15.04 |
-11:57:01.2 |
HIP 38048 |
17.78 |
| 2026-09-30 00:00 |
07:47:16.22 |
-11:57:30.8 |
HIP 38048 |
17.20 |
| 2026-09-30 12:00 |
07:47:17.38 |
-11:58:00.5 |
HIP 38048 |
16.64 |
| 2026-10-01 00:00 |
07:47:18.51 |
-11:58:30.2 |
HIP 38048 |
16.07 |
| 2026-10-01 12:00 |
07:47:19.61 |
-11:59:00.0 |
HIP 38048 |
15.51 |
| 2026-10-02 00:00 |
07:47:20.69 |
-11:59:29.7 |
HIP 38048 |
14.96 |
| 2026-10-02 12:00 |
07:47:21.74 |
-11:59:59.4 |
HIP 38048 |
14.41 |
| 2026-10-03 00:00 |
07:47:22.77 |
-12:00:29.2 |
HIP 38048 |
13.86 |
| 2026-10-03 12:00 |
07:47:23.77 |
-12:00:59.0 |
HIP 38048 |
13.31 |
| 2026-10-04 00:00 |
07:47:24.75 |
-12:01:28.8 |
HIP 38048 |
12.77 |
| 2026-10-04 12:00 |
07:47:25.70 |
-12:01:58.6 |
HIP 38048 |
12.24 |
| 2026-10-05 00:00 |
07:47:26.62 |
-12:02:28.4 |
HIP 38048 |
11.71 |
| 2026-10-05 12:00 |
07:47:27.52 |
-12:02:58.1 |
HIP 38048 |
11.19 |
| 2026-10-06 00:00 |
07:47:28.39 |
-12:03:27.9 |
HIP 38048 |
10.67 |
| 2026-10-06 12:00 |
07:47:29.24 |
-12:03:57.7 |
HIP 38048 |
10.16 |
| 2026-10-07 00:00 |
07:47:30.05 |
-12:04:27.5 |
HIP 38048 |
9.66 |
| 2026-10-07 12:00 |
07:47:30.84 |
-12:04:57.3 |
HIP 38048 |
9.16 |
| 2026-10-08 00:00 |
07:47:31.61 |
-12:05:27.1 |
HIP 38048 |
8.68 |
| 2026-10-08 12:00 |
07:47:32.35 |
-12:05:56.8 |
HIP 38048 |
8.20 |
| 2026-10-09 00:00 |
07:47:33.06 |
-12:06:26.6 |
HIP 38048 |
7.74 |
| 2026-10-09 12:00 |
07:47:33.74 |
-12:06:56.3 |
HIP 38048 |
7.29 |
| 2026-10-10 00:00 |
07:47:34.40 |
-12:07:26.0 |
HIP 38048 |
6.86 |
| 2026-10-10 12:00 |
07:47:35.03 |
-12:07:55.7 |
HIP 38048 |
6.45 |
| 2026-10-11 00:00 |
07:47:35.63 |
-12:08:25.4 |
HIP 38048 |
6.05 |