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) |
| 2026-05-12 00:00 |
21:37:25.68 |
-28:50:53.2 |
HIP 106719 |
15.39 |
| 2026-05-12 12:00 |
21:37:39.49 |
-28:52:09.1 |
HIP 106719 |
17.83 |
| 2026-05-13 00:00 |
21:37:53.13 |
-28:53:26.5 |
HIP 106719 |
20.50 |
| 2026-05-13 12:00 |
21:38:06.60 |
-28:54:45.1 |
HIP 106719 |
23.31 |
| 2026-05-14 00:00 |
21:38:19.89 |
-28:56:05.1 |
HIP 106719 |
26.21 |
| 2026-05-14 12:00 |
21:38:33.01 |
-28:57:26.5 |
HIP 106719 |
29.16 |
| 2026-05-15 00:00 |
21:38:45.94 |
-28:58:49.3 |
HIP 107023 |
27.57 |
| 2026-05-15 12:00 |
21:38:58.70 |
-29:00:13.4 |
HIP 107023 |
24.47 |
| 2026-05-16 00:00 |
21:39:11.28 |
-29:01:38.9 |
HIP 107023 |
21.39 |
| 2026-05-16 12:00 |
21:39:23.67 |
-29:03:05.8 |
HIP 107023 |
18.35 |
| 2026-05-17 00:00 |
21:39:35.88 |
-29:04:34.1 |
HIP 107023 |
15.33 |
| 2026-05-17 12:00 |
21:39:47.91 |
-29:06:03.7 |
HIP 107023 |
12.34 |
| 2026-05-18 00:00 |
21:39:59.75 |
-29:07:34.8 |
HIP 107023 |
9.39 |
| 2026-05-18 12:00 |
21:40:11.41 |
-29:09:07.2 |
HIP 107023 |
6.49 |
| 2026-05-19 00:00 |
21:40:22.87 |
-29:10:41.1 |
HIP 107023 |
3.73 |
| 2026-05-19 12:00 |
21:40:34.15 |
-29:12:16.4 |
HIP 107023 |
1.70 |
| 2026-05-20 00:00 |
21:40:45.23 |
-29:13:53.0 |
HIP 107023 |
2.97 |
| 2026-05-20 12:00 |
21:40:56.13 |
-29:15:31.1 |
HIP 107023 |
5.59 |
| 2026-05-21 00:00 |
21:41:06.83 |
-29:17:10.6 |
HIP 107023 |
8.35 |
| 2026-05-21 12:00 |
21:41:17.33 |
-29:18:51.5 |
HIP 107023 |
11.14 |
| 2026-05-22 00:00 |
21:41:27.65 |
-29:20:33.8 |
HIP 107023 |
13.92 |
| 2026-05-22 12:00 |
21:41:37.76 |
-29:22:17.6 |
HIP 107023 |
16.69 |
| 2026-05-23 00:00 |
21:41:47.68 |
-29:24:02.7 |
HIP 107130 |
16.59 |
| 2026-05-23 12:00 |
21:41:57.40 |
-29:25:49.3 |
HIP 107130 |
14.54 |
| 2026-05-24 00:00 |
21:42:06.92 |
-29:27:37.3 |
HIP 107130 |
12.74 |
| 2026-05-24 12:00 |
21:42:16.25 |
-29:29:26.7 |
HIP 107130 |
11.30 |
| 2026-05-25 00:00 |
21:42:25.36 |
-29:31:17.6 |
HIP 107130 |
10.33 |
| 2026-05-25 12:00 |
21:42:34.28 |
-29:33:09.9 |
HIP 107130 |
9.99 |
| 2026-05-26 00:00 |
21:42:42.99 |
-29:35:03.6 |
HIP 107130 |
10.30 |
| 2026-05-26 12:00 |
21:42:51.50 |
-29:36:58.8 |
HIP 107130 |
11.21 |
| 2026-05-27 00:00 |
21:42:59.80 |
-29:38:55.3 |
HIP 107130 |
12.58 |
| 2026-05-27 12:00 |
21:43:07.89 |
-29:40:53.4 |
HIP 107130 |
14.27 |
| 2026-05-28 00:00 |
21:43:15.78 |
-29:42:52.8 |
HIP 107130 |
16.17 |
| 2026-05-28 12:00 |
21:43:23.45 |
-29:44:53.7 |
HIP 107130 |
18.21 |
| 2026-05-29 00:00 |
21:43:30.92 |
-29:46:56.0 |
HIP 107130 |
20.35 |
| 2026-05-29 12:00 |
21:43:38.17 |
-29:48:59.8 |
HIP 107130 |
22.55 |
| 2026-05-30 00:00 |
21:43:45.20 |
-29:51:05.0 |
HIP 107130 |
24.80 |
| 2026-05-30 12:00 |
21:43:52.03 |
-29:53:11.7 |
HIP 107130 |
27.07 |
| 2026-05-31 00:00 |
21:43:58.63 |
-29:55:19.8 |
HIP 107130 |
29.37 |
| 2026-05-31 12:00 |
21:44:05.02 |
-29:57:29.3 |
HIP 107130 |
31.68 |
| 2026-06-01 00:00 |
21:44:11.19 |
-29:59:40.3 |
HIP 107130 |
34.00 |
| 2026-06-01 12:00 |
21:44:17.14 |
-30:01:52.7 |
HIP 107130 |
36.33 |
| 2026-06-02 00:00 |
21:44:22.87 |
-30:04:06.5 |
HIP 107130 |
38.66 |