329P/LINEAR-Catalina
メタデータ
| 項目 |
値 |
| Designation |
329P/LINEAR-Catalina |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-12-05T06:20:59.193600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:25Z |
| Obs used |
685 |
| NEO |
- |
| M1 |
8.900 |
| K1 |
36.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-05-10.0000000 |
| e |
0.68010907 |
| q (au) |
1.660001 |
| a (au) |
5.189273 |
| i (deg) |
21.466984 |
| Ω (om, deg) |
88.791911 |
| ω (w, deg) |
342.313801 |
| M (ma, deg) |
281.687284 |
等級
散乱 + 全体線形
$$
M_a = (17.015 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.015 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.547 |
| 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) |
| 2026-02-03 00:00 |
20:18:15.86 |
-29:20:41.2 |
HIP 100024 |
9.15 |
| 2026-02-03 12:00 |
20:18:45.11 |
-29:19:50.9 |
HIP 100024 |
15.51 |
| 2026-02-04 00:00 |
20:19:14.36 |
-29:19:00.6 |
HIP 100267 |
17.26 |
| 2026-02-04 12:00 |
20:19:43.60 |
-29:18:10.4 |
HIP 100286 |
11.53 |
| 2026-02-05 00:00 |
20:20:12.84 |
-29:17:20.3 |
HIP 100288 |
6.41 |
| 2026-02-05 12:00 |
20:20:42.08 |
-29:16:30.2 |
HIP 100288 |
5.60 |
| 2026-02-06 00:00 |
20:21:11.31 |
-29:15:40.3 |
HIP 100288 |
10.22 |
| 2026-02-06 12:00 |
20:21:40.53 |
-29:14:50.4 |
HIP 100288 |
16.13 |
| 2026-02-07 00:00 |
20:22:09.75 |
-29:14:00.6 |
HIP 100517 |
11.33 |
| 2026-02-07 12:00 |
20:22:38.96 |
-29:13:10.9 |
HIP 100517 |
5.59 |
| 2026-02-08 00:00 |
20:23:08.15 |
-29:12:21.2 |
HIP 100517 |
4.10 |
| 2026-02-08 12:00 |
20:23:37.34 |
-29:11:31.7 |
HIP 100517 |
9.21 |
| 2026-02-09 00:00 |
20:24:06.52 |
-29:10:42.3 |
HIP 100674 |
9.94 |
| 2026-02-09 12:00 |
20:24:35.69 |
-29:09:53.0 |
HIP 100674 |
5.44 |
| 2026-02-10 00:00 |
20:25:04.85 |
-29:09:03.9 |
HIP 100674 |
6.54 |
| 2026-02-10 12:00 |
20:25:34.00 |
-29:08:14.8 |
HIP 100674 |
11.77 |
| 2026-02-11 00:00 |
20:26:03.13 |
-29:07:25.9 |
HIP 100819 |
7.13 |
| 2026-02-11 12:00 |
20:26:32.25 |
-29:06:37.1 |
HIP 100819 |
2.19 |
| 2026-02-12 00:00 |
20:27:01.35 |
-29:05:48.4 |
HIP 100819 |
6.40 |
| 2026-02-12 12:00 |
20:27:30.44 |
-29:04:59.8 |
HIP 100819 |
12.62 |
| 2026-02-13 00:00 |
20:27:59.51 |
-29:04:11.5 |
HIP 100897 |
16.78 |
| 2026-02-13 12:00 |
20:28:28.57 |
-29:03:23.2 |
HIP 100897 |
19.59 |
| 2026-02-14 00:00 |
20:28:57.60 |
-29:02:35.1 |
HIP 101060 |
21.21 |
| 2026-02-14 12:00 |
20:29:26.62 |
-29:01:47.2 |
HIP 101211 |
20.32 |
| 2026-02-15 00:00 |
20:29:55.62 |
-29:00:59.4 |
HIP 101211 |
14.56 |
| 2026-02-15 12:00 |
20:30:24.61 |
-29:00:11.8 |
HIP 101211 |
9.62 |
| 2026-02-16 00:00 |
20:30:53.56 |
-28:59:24.4 |
HIP 101211 |
7.39 |
| 2026-02-16 12:00 |
20:31:22.50 |
-28:58:37.1 |
HIP 101211 |
9.89 |
| 2026-02-17 00:00 |
20:31:51.42 |
-28:57:50.0 |
HIP 101211 |
14.91 |
| 2026-02-17 12:00 |
20:32:20.31 |
-28:57:03.1 |
HIP 101211 |
20.68 |
| 2026-02-18 00:00 |
20:32:49.18 |
-28:56:16.5 |
HIP 101367 |
20.60 |
| 2026-02-18 12:00 |
20:33:18.02 |
-28:55:30.0 |
HIP 101367 |
21.26 |
| 2026-02-19 00:00 |
20:33:46.84 |
-28:54:43.7 |
HIP 101469 |
22.84 |
| 2026-02-19 12:00 |
20:34:15.63 |
-28:53:57.6 |
HIP 101469 |
24.29 |
| 2026-02-20 00:00 |
20:34:44.39 |
-28:53:11.7 |
HIP 101469 |
27.17 |
| 2026-02-20 12:00 |
20:35:13.13 |
-28:52:26.1 |
HIP 101738 |
28.49 |
| 2026-02-21 00:00 |
20:35:41.84 |
-28:51:40.7 |
HIP 101738 |
22.37 |
| 2026-02-21 12:00 |
20:36:10.51 |
-28:50:55.5 |
HIP 101738 |
16.40 |
| 2026-02-22 00:00 |
20:36:39.16 |
-28:50:10.5 |
HIP 101738 |
10.86 |
| 2026-02-22 12:00 |
20:37:07.78 |
-28:49:25.8 |
HIP 101738 |
6.85 |
| 2026-02-23 00:00 |
20:37:36.36 |
-28:48:41.3 |
HIP 101793 |
2.55 |
| 2026-02-23 12:00 |
20:38:04.91 |
-28:47:57.1 |
HIP 101793 |
4.17 |
| 2026-02-24 00:00 |
20:38:33.43 |
-28:47:13.2 |
HIP 101793 |
10.36 |