214P/LINEAR
メタデータ
| 項目 |
値 |
| Designation |
214P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2002-03-01T01:06:46.031040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:27:56Z |
| Obs used |
131 |
| NEO |
- |
| M1 |
12.100 |
| K1 |
22.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2003-05-31.0000000 |
| e |
0.48955169 |
| q (au) |
1.839837 |
| a (au) |
3.604356 |
| i (deg) |
15.226039 |
| Ω (om, deg) |
348.307428 |
| ω (w, deg) |
190.158967 |
| M (ma, deg) |
65.672462 |
等級
散乱 + 全体線形
$$
M_a = (13.817 + 5.612\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.817 |
| n |
5.612 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-02-03 00:00 |
23:20:31.20 |
-02:09:57.2 |
HIP 115294 |
20.06 |
| 2026-02-03 12:00 |
23:20:50.47 |
-02:07:34.9 |
HIP 115294 |
21.25 |
| 2026-02-04 00:00 |
23:21:09.79 |
-02:05:12.2 |
HIP 115294 |
23.63 |
| 2026-02-04 12:00 |
23:21:29.16 |
-02:02:49.1 |
HIP 115294 |
26.91 |
| 2026-02-05 00:00 |
23:21:48.59 |
-02:00:25.5 |
HIP 115302 |
26.42 |
| 2026-02-05 12:00 |
23:22:08.08 |
-01:58:01.6 |
HIP 115302 |
26.45 |
| 2026-02-06 00:00 |
23:22:27.62 |
-01:55:37.2 |
HIP 115302 |
27.57 |
| 2026-02-06 12:00 |
23:22:47.22 |
-01:53:12.4 |
HIP 115572 |
29.23 |
| 2026-02-07 00:00 |
23:23:06.87 |
-01:50:47.2 |
HIP 115572 |
23.84 |
| 2026-02-07 12:00 |
23:23:26.57 |
-01:48:21.6 |
HIP 115572 |
18.47 |
| 2026-02-08 00:00 |
23:23:46.32 |
-01:45:55.6 |
HIP 115572 |
13.21 |
| 2026-02-08 12:00 |
23:24:06.13 |
-01:43:29.1 |
HIP 115572 |
8.24 |
| 2026-02-09 00:00 |
23:24:25.98 |
-01:41:02.3 |
HIP 115572 |
4.71 |
| 2026-02-09 12:00 |
23:24:45.89 |
-01:38:35.1 |
HIP 115572 |
6.15 |
| 2026-02-10 00:00 |
23:25:05.84 |
-01:36:07.6 |
HIP 115572 |
10.73 |
| 2026-02-10 12:00 |
23:25:25.84 |
-01:33:39.6 |
HIP 115572 |
15.96 |
| 2026-02-11 00:00 |
23:25:45.89 |
-01:31:11.3 |
HIP 115572 |
21.38 |
| 2026-02-11 12:00 |
23:26:05.98 |
-01:28:42.6 |
HIP 115752 |
18.63 |
| 2026-02-12 00:00 |
23:26:26.12 |
-01:26:13.5 |
HIP 115752 |
13.19 |
| 2026-02-12 12:00 |
23:26:46.31 |
-01:23:44.0 |
HIP 115752 |
7.97 |
| 2026-02-13 00:00 |
23:27:06.54 |
-01:21:14.2 |
HIP 115752 |
4.06 |
| 2026-02-13 12:00 |
23:27:26.82 |
-01:18:44.0 |
HIP 115752 |
5.75 |
| 2026-02-14 00:00 |
23:27:47.14 |
-01:16:13.5 |
HIP 115752 |
10.67 |
| 2026-02-14 12:00 |
23:28:07.50 |
-01:13:42.7 |
HIP 115752 |
16.10 |
| 2026-02-15 00:00 |
23:28:27.90 |
-01:11:11.4 |
HIP 115951 |
18.03 |
| 2026-02-15 12:00 |
23:28:48.34 |
-01:08:39.9 |
HIP 115951 |
12.35 |
| 2026-02-16 00:00 |
23:29:08.83 |
-01:06:08.0 |
HIP 115951 |
6.69 |
| 2026-02-16 12:00 |
23:29:29.35 |
-01:03:35.8 |
HIP 115951 |
1.47 |
| 2026-02-17 00:00 |
23:29:49.91 |
-01:01:03.2 |
HIP 115951 |
5.02 |
| 2026-02-17 12:00 |
23:30:10.51 |
-00:58:30.4 |
HIP 115951 |
10.69 |
| 2026-02-18 00:00 |
23:30:31.15 |
-00:55:57.2 |
HIP 115951 |
16.42 |
| 2026-02-18 12:00 |
23:30:51.82 |
-00:53:23.7 |
HIP 116062 |
17.81 |
| 2026-02-19 00:00 |
23:31:12.53 |
-00:50:49.9 |
HIP 116062 |
15.31 |
| 2026-02-19 12:00 |
23:31:33.27 |
-00:48:15.8 |
HIP 116062 |
14.77 |
| 2026-02-20 00:00 |
23:31:54.05 |
-00:45:41.4 |
HIP 116209 |
14.05 |
| 2026-02-20 12:00 |
23:32:14.86 |
-00:43:06.7 |
HIP 116209 |
10.92 |
| 2026-02-21 00:00 |
23:32:35.70 |
-00:40:31.7 |
HIP 116209 |
10.41 |
| 2026-02-21 12:00 |
23:32:56.57 |
-00:37:56.5 |
HIP 116209 |
12.86 |
| 2026-02-22 00:00 |
23:33:17.48 |
-00:35:20.9 |
HIP 116320 |
15.93 |
| 2026-02-22 12:00 |
23:33:38.41 |
-00:32:45.1 |
HIP 116320 |
10.29 |
| 2026-02-23 00:00 |
23:33:59.38 |
-00:30:09.0 |
HIP 116320 |
5.13 |
| 2026-02-23 12:00 |
23:34:20.37 |
-00:27:32.7 |
HIP 116320 |
3.90 |
| 2026-02-24 00:00 |
23:34:41.39 |
-00:24:56.1 |
HIP 116320 |
8.54 |