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) |
| 2026-09-20 00:00 |
05:25:56.46 |
+33:45:31.7 |
HIP 25296 |
17.00 |
| 2026-09-20 12:00 |
05:26:06.77 |
+33:46:46.7 |
HIP 25296 |
19.46 |
| 2026-09-21 00:00 |
05:26:16.87 |
+33:48:01.8 |
HIP 25558 |
20.44 |
| 2026-09-21 12:00 |
05:26:26.76 |
+33:49:16.8 |
HIP 25558 |
18.05 |
| 2026-09-22 00:00 |
05:26:36.45 |
+33:50:31.9 |
HIP 25558 |
15.70 |
| 2026-09-22 12:00 |
05:26:45.93 |
+33:51:47.1 |
HIP 25558 |
13.40 |
| 2026-09-23 00:00 |
05:26:55.20 |
+33:53:02.2 |
HIP 25558 |
11.16 |
| 2026-09-23 12:00 |
05:27:04.27 |
+33:54:17.4 |
HIP 25558 |
8.99 |
| 2026-09-24 00:00 |
05:27:13.12 |
+33:55:32.6 |
HIP 25558 |
6.91 |
| 2026-09-24 12:00 |
05:27:21.76 |
+33:56:47.9 |
HIP 25558 |
5.01 |
| 2026-09-25 00:00 |
05:27:30.18 |
+33:58:03.1 |
HIP 25558 |
3.51 |
| 2026-09-25 12:00 |
05:27:38.39 |
+33:59:18.4 |
HIP 25558 |
2.99 |
| 2026-09-26 00:00 |
05:27:46.38 |
+34:00:33.6 |
HIP 25558 |
3.80 |
| 2026-09-26 12:00 |
05:27:54.16 |
+34:01:48.9 |
HIP 25558 |
5.34 |
| 2026-09-27 00:00 |
05:28:01.72 |
+34:03:04.2 |
HIP 25558 |
7.11 |
| 2026-09-27 12:00 |
05:28:09.05 |
+34:04:19.5 |
HIP 25558 |
8.96 |
| 2026-09-28 00:00 |
05:28:16.17 |
+34:05:34.8 |
HIP 25558 |
10.82 |
| 2026-09-28 12:00 |
05:28:23.06 |
+34:06:50.1 |
HIP 25558 |
12.68 |
| 2026-09-29 00:00 |
05:28:29.73 |
+34:08:05.5 |
HIP 25558 |
14.52 |
| 2026-09-29 12:00 |
05:28:36.17 |
+34:09:20.8 |
HIP 25558 |
16.33 |
| 2026-09-30 00:00 |
05:28:42.39 |
+34:10:36.1 |
HIP 25558 |
18.12 |
| 2026-09-30 12:00 |
05:28:48.37 |
+34:11:51.3 |
HIP 25787 |
19.66 |
| 2026-10-01 00:00 |
05:28:54.13 |
+34:13:06.6 |
HIP 25787 |
18.50 |
| 2026-10-01 12:00 |
05:28:59.66 |
+34:14:21.9 |
HIP 25787 |
17.48 |
| 2026-10-02 00:00 |
05:29:04.95 |
+34:15:37.1 |
HIP 25787 |
16.62 |
| 2026-10-02 12:00 |
05:29:10.01 |
+34:16:52.3 |
HIP 25787 |
15.93 |
| 2026-10-03 00:00 |
05:29:14.83 |
+34:18:07.5 |
HIP 25787 |
15.43 |
| 2026-10-03 12:00 |
05:29:19.41 |
+34:19:22.6 |
HIP 25787 |
15.13 |
| 2026-10-04 00:00 |
05:29:23.76 |
+34:20:37.7 |
HIP 25787 |
15.03 |
| 2026-10-04 12:00 |
05:29:27.87 |
+34:21:52.8 |
HIP 25787 |
15.12 |
| 2026-10-05 00:00 |
05:29:31.73 |
+34:23:07.8 |
HIP 25787 |
15.40 |
| 2026-10-05 12:00 |
05:29:35.36 |
+34:24:22.7 |
HIP 25787 |
15.84 |
| 2026-10-06 00:00 |
05:29:38.74 |
+34:25:37.6 |
HIP 25787 |
16.43 |
| 2026-10-06 12:00 |
05:29:41.87 |
+34:26:52.5 |
HIP 25787 |
17.14 |
| 2026-10-07 00:00 |
05:29:44.76 |
+34:28:07.2 |
HIP 25787 |
17.95 |
| 2026-10-07 12:00 |
05:29:47.40 |
+34:29:21.9 |
HIP 25787 |
18.85 |
| 2026-10-08 00:00 |
05:29:49.79 |
+34:30:36.5 |
HIP 25787 |
19.82 |
| 2026-10-08 12:00 |
05:29:51.93 |
+34:31:51.1 |
HIP 25624 |
20.24 |
| 2026-10-09 00:00 |
05:29:53.82 |
+34:33:05.5 |
HIP 25624 |
20.00 |
| 2026-10-09 12:00 |
05:29:55.46 |
+34:34:19.8 |
HIP 25624 |
19.80 |
| 2026-10-10 00:00 |
05:29:56.85 |
+34:35:34.0 |
HIP 25624 |
19.63 |
| 2026-10-10 12:00 |
05:29:57.98 |
+34:36:48.2 |
HIP 25624 |
19.50 |
| 2026-10-11 00:00 |
05:29:58.86 |
+34:38:02.1 |
HIP 25624 |
19.39 |