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) |
| 2026-03-26 00:00 |
03:05:30.64 |
+26:21:56.4 |
HIP 14379 |
29.81 |
| 2026-03-26 12:00 |
03:05:50.82 |
+26:22:50.2 |
HIP 14379 |
31.03 |
| 2026-03-27 00:00 |
03:06:11.10 |
+26:23:44.4 |
HIP 14594 |
30.39 |
| 2026-03-27 12:00 |
03:06:31.48 |
+26:24:39.1 |
HIP 14594 |
26.01 |
| 2026-03-28 00:00 |
03:06:51.95 |
+26:25:34.3 |
HIP 14594 |
21.73 |
| 2026-03-28 12:00 |
03:07:12.52 |
+26:26:29.9 |
HIP 14594 |
17.64 |
| 2026-03-29 00:00 |
03:07:33.19 |
+26:27:26.0 |
HIP 14594 |
13.93 |
| 2026-03-29 12:00 |
03:07:53.95 |
+26:28:22.5 |
HIP 14594 |
11.01 |
| 2026-03-30 00:00 |
03:08:14.81 |
+26:29:19.5 |
HIP 14594 |
9.66 |
| 2026-03-30 12:00 |
03:08:35.76 |
+26:30:16.9 |
HIP 14594 |
10.55 |
| 2026-03-31 00:00 |
03:08:56.80 |
+26:31:14.8 |
HIP 14594 |
13.24 |
| 2026-03-31 12:00 |
03:09:17.93 |
+26:32:13.1 |
HIP 14594 |
16.92 |
| 2026-04-01 00:00 |
03:09:39.16 |
+26:33:11.8 |
HIP 14594 |
21.09 |
| 2026-04-01 12:00 |
03:10:00.47 |
+26:34:10.9 |
HIP 14748 |
20.46 |
| 2026-04-02 00:00 |
03:10:21.88 |
+26:35:10.4 |
HIP 14748 |
18.63 |
| 2026-04-02 12:00 |
03:10:43.37 |
+26:36:10.4 |
HIP 14748 |
17.97 |
| 2026-04-03 00:00 |
03:11:04.96 |
+26:37:10.7 |
HIP 14831 |
14.74 |
| 2026-04-03 12:00 |
03:11:26.63 |
+26:38:11.5 |
HIP 14831 |
12.60 |
| 2026-04-04 00:00 |
03:11:48.39 |
+26:39:12.6 |
HIP 14831 |
12.21 |
| 2026-04-04 12:00 |
03:12:10.24 |
+26:40:14.2 |
HIP 14831 |
13.74 |
| 2026-04-05 00:00 |
03:12:32.17 |
+26:41:16.1 |
HIP 14831 |
16.70 |
| 2026-04-05 12:00 |
03:12:54.19 |
+26:42:18.5 |
HIP 15000 |
19.81 |
| 2026-04-06 00:00 |
03:13:16.29 |
+26:43:21.2 |
HIP 15000 |
19.90 |
| 2026-04-06 12:00 |
03:13:38.48 |
+26:44:24.3 |
HIP 15000 |
21.23 |
| 2026-04-07 00:00 |
03:14:00.76 |
+26:45:27.7 |
HIP 15177 |
22.68 |
| 2026-04-07 12:00 |
03:14:23.11 |
+26:46:31.5 |
HIP 15177 |
17.69 |
| 2026-04-08 00:00 |
03:14:45.55 |
+26:47:35.7 |
HIP 15177 |
12.78 |
| 2026-04-08 12:00 |
03:15:08.07 |
+26:48:40.3 |
HIP 15177 |
8.10 |
| 2026-04-09 00:00 |
03:15:30.67 |
+26:49:45.2 |
HIP 15177 |
4.54 |
| 2026-04-09 12:00 |
03:15:53.36 |
+26:50:50.5 |
HIP 15177 |
5.38 |
| 2026-04-10 00:00 |
03:16:16.12 |
+26:51:56.1 |
HIP 15177 |
9.54 |
| 2026-04-10 12:00 |
03:16:38.97 |
+26:53:02.0 |
HIP 15177 |
14.41 |
| 2026-04-11 00:00 |
03:17:01.89 |
+26:54:08.3 |
HIP 15177 |
19.47 |
| 2026-04-11 12:00 |
03:17:24.89 |
+26:55:15.0 |
HIP 15177 |
24.62 |
| 2026-04-12 00:00 |
03:17:47.97 |
+26:56:21.9 |
HIP 15514 |
29.56 |
| 2026-04-12 12:00 |
03:18:11.12 |
+26:57:29.2 |
HIP 15514 |
24.29 |
| 2026-04-13 00:00 |
03:18:34.36 |
+26:58:36.8 |
HIP 15514 |
19.00 |
| 2026-04-13 12:00 |
03:18:57.67 |
+26:59:44.7 |
HIP 15514 |
13.72 |
| 2026-04-14 00:00 |
03:19:21.05 |
+27:00:53.0 |
HIP 15514 |
8.45 |
| 2026-04-14 12:00 |
03:19:44.51 |
+27:02:01.5 |
HIP 15514 |
3.38 |
| 2026-04-15 00:00 |
03:20:08.04 |
+27:03:10.4 |
HIP 15514 |
2.94 |
| 2026-04-15 12:00 |
03:20:31.65 |
+27:04:19.6 |
HIP 15514 |
7.98 |
| 2026-04-16 00:00 |
03:20:55.32 |
+27:05:29.0 |
HIP 15575 |
10.55 |