301P/LINEAR-NEAT
メタデータ
| 項目 |
値 |
| Designation |
301P/LINEAR-NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2001-01-30T16:28:03.817920Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:17Z |
| Obs used |
126 |
| NEO |
- |
| M1 |
10.900 |
| K1 |
16.250 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2003-02-05.0000000 |
| e |
0.58742378 |
| q (au) |
2.346309 |
| a (au) |
5.686971 |
| i (deg) |
10.618305 |
| Ω (om, deg) |
355.783208 |
| ω (w, deg) |
189.400943 |
| M (ma, deg) |
53.438629 |
等級
散乱 + 全体線形
$$
M_a = (11.907 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.907 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.971 |
| δ90 |
1.000 |
| 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 |
02:42:13.77 |
+25:45:36.0 |
HIP 12524 |
16.67 |
| 2026-02-03 12:00 |
02:42:19.79 |
+25:45:19.4 |
HIP 12524 |
17.70 |
| 2026-02-04 00:00 |
02:42:25.98 |
+25:45:03.6 |
HIP 12524 |
18.82 |
| 2026-02-04 12:00 |
02:42:32.35 |
+25:44:48.7 |
HIP 12744 |
18.93 |
| 2026-02-05 00:00 |
02:42:38.89 |
+25:44:34.6 |
HIP 12744 |
17.47 |
| 2026-02-05 12:00 |
02:42:45.61 |
+25:44:21.3 |
HIP 12744 |
15.98 |
| 2026-02-06 00:00 |
02:42:52.50 |
+25:44:08.8 |
HIP 12744 |
14.47 |
| 2026-02-06 12:00 |
02:42:59.56 |
+25:43:57.1 |
HIP 12744 |
12.94 |
| 2026-02-07 00:00 |
02:43:06.79 |
+25:43:46.3 |
HIP 12744 |
11.41 |
| 2026-02-07 12:00 |
02:43:14.20 |
+25:43:36.3 |
HIP 12744 |
9.89 |
| 2026-02-08 00:00 |
02:43:21.77 |
+25:43:27.0 |
HIP 12744 |
8.40 |
| 2026-02-08 12:00 |
02:43:29.52 |
+25:43:18.7 |
HIP 12744 |
7.01 |
| 2026-02-09 00:00 |
02:43:37.44 |
+25:43:11.1 |
HIP 12744 |
5.79 |
| 2026-02-09 12:00 |
02:43:45.52 |
+25:43:04.4 |
HIP 12744 |
4.94 |
| 2026-02-10 00:00 |
02:43:53.77 |
+25:42:58.4 |
HIP 12744 |
4.71 |
| 2026-02-10 12:00 |
02:44:02.19 |
+25:42:53.3 |
HIP 12744 |
5.21 |
| 2026-02-11 00:00 |
02:44:10.78 |
+25:42:49.0 |
HIP 12744 |
6.31 |
| 2026-02-11 12:00 |
02:44:19.53 |
+25:42:45.5 |
HIP 12744 |
7.78 |
| 2026-02-12 00:00 |
02:44:28.45 |
+25:42:42.9 |
HIP 12744 |
9.47 |
| 2026-02-12 12:00 |
02:44:37.54 |
+25:42:41.0 |
HIP 12744 |
11.31 |
| 2026-02-13 00:00 |
02:44:46.79 |
+25:42:39.9 |
HIP 12744 |
13.25 |
| 2026-02-13 12:00 |
02:44:56.20 |
+25:42:39.7 |
HIP 12781 |
14.56 |
| 2026-02-14 00:00 |
02:45:05.78 |
+25:42:40.3 |
HIP 12926 |
16.03 |
| 2026-02-14 12:00 |
02:45:15.52 |
+25:42:41.6 |
HIP 12926 |
13.91 |
| 2026-02-15 00:00 |
02:45:25.42 |
+25:42:43.8 |
HIP 12926 |
11.78 |
| 2026-02-15 12:00 |
02:45:35.48 |
+25:42:46.8 |
HIP 12926 |
9.68 |
| 2026-02-16 00:00 |
02:45:45.70 |
+25:42:50.5 |
HIP 12926 |
7.64 |
| 2026-02-16 12:00 |
02:45:56.09 |
+25:42:55.1 |
HIP 12926 |
5.79 |
| 2026-02-17 00:00 |
02:46:06.63 |
+25:43:00.4 |
HIP 12926 |
4.42 |
| 2026-02-17 12:00 |
02:46:17.33 |
+25:43:06.6 |
HIP 12926 |
4.13 |
| 2026-02-18 00:00 |
02:46:28.18 |
+25:43:13.5 |
HIP 12926 |
5.15 |
| 2026-02-18 12:00 |
02:46:39.20 |
+25:43:21.2 |
HIP 12926 |
6.96 |
| 2026-02-19 00:00 |
02:46:50.37 |
+25:43:29.7 |
HIP 12926 |
9.13 |
| 2026-02-19 12:00 |
02:47:01.69 |
+25:43:39.0 |
HIP 12926 |
11.48 |
| 2026-02-20 00:00 |
02:47:13.17 |
+25:43:49.1 |
HIP 12926 |
13.95 |
| 2026-02-20 12:00 |
02:47:24.81 |
+25:44:00.0 |
HIP 13015 |
14.71 |
| 2026-02-21 00:00 |
02:47:36.59 |
+25:44:11.5 |
HIP 13015 |
14.93 |
| 2026-02-21 12:00 |
02:47:48.53 |
+25:44:23.9 |
HIP 13015 |
15.61 |
| 2026-02-22 00:00 |
02:48:00.62 |
+25:44:37.0 |
HIP 13015 |
16.71 |
| 2026-02-22 12:00 |
02:48:12.85 |
+25:44:50.9 |
HIP 13015 |
18.17 |
| 2026-02-23 00:00 |
02:48:25.24 |
+25:45:05.5 |
HIP 13015 |
19.92 |
| 2026-02-23 12:00 |
02:48:37.77 |
+25:45:20.9 |
HIP 13015 |
21.91 |
| 2026-02-24 00:00 |
02:48:50.46 |
+25:45:37.1 |
HIP 13015 |
24.09 |