メタデータ
| 項目 |
値 |
| Designation |
354P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2013-05-21T23:06:18.938880Z |
| Orbit solution date (soln_date, UTC) |
2024-04-16T15:09:05Z |
| Obs used |
250 |
| NEO |
- |
| M1 |
15.600 |
| K1 |
10.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2014-02-13.0000000 |
| e |
0.12497150 |
| q (au) |
2.003549 |
| a (au) |
2.289696 |
| i (deg) |
5.256074 |
| Ω (om, deg) |
320.235372 |
| ω (w, deg) |
132.732437 |
| M (ma, deg) |
75.964266 |
等級
散乱 + 全体線形
$$
M_a = (16.305 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.305 |
| n |
2.000 |
| gf |
0.987 |
| gb |
-0.762 |
| k |
0.999 |
| δ90 |
9.999 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
22:55:43.68 |
-05:50:39.2 |
HIP 113192 |
10.83 |
| 2026-03-26 12:00 |
22:56:34.95 |
-05:44:47.9 |
HIP 113192 |
18.66 |
| 2026-03-27 00:00 |
22:57:26.19 |
-05:38:56.2 |
HIP 113416 |
11.01 |
| 2026-03-27 12:00 |
22:58:17.40 |
-05:33:04.2 |
HIP 113416 |
8.30 |
| 2026-03-28 00:00 |
22:59:08.58 |
-05:27:11.9 |
HIP 113451 |
15.57 |
| 2026-03-28 12:00 |
22:59:59.72 |
-05:21:19.3 |
HIP 113451 |
28.34 |
| 2026-03-29 00:00 |
23:00:50.84 |
-05:15:26.3 |
HIP 113686 |
34.29 |
| 2026-03-29 12:00 |
23:01:41.92 |
-05:09:33.1 |
HIP 113686 |
26.98 |
| 2026-03-30 00:00 |
23:02:32.97 |
-05:03:39.5 |
HIP 113686 |
25.94 |
| 2026-03-30 12:00 |
23:03:24.00 |
-04:57:45.7 |
HIP 113896 |
13.01 |
| 2026-03-31 00:00 |
23:04:14.99 |
-04:51:51.5 |
HIP 113896 |
6.10 |
| 2026-03-31 12:00 |
23:05:05.95 |
-04:45:57.1 |
HIP 113896 |
17.24 |
| 2026-04-01 00:00 |
23:05:56.88 |
-04:40:02.4 |
HIP 114223 |
30.05 |
| 2026-04-01 12:00 |
23:06:47.79 |
-04:34:07.4 |
HIP 114223 |
20.80 |
| 2026-04-02 00:00 |
23:07:38.66 |
-04:28:12.2 |
HIP 114223 |
18.83 |
| 2026-04-02 12:00 |
23:08:29.50 |
-04:22:16.6 |
HIP 114223 |
25.84 |
| 2026-04-03 00:00 |
23:09:20.31 |
-04:16:20.8 |
HIP 114355 |
19.06 |
| 2026-04-03 12:00 |
23:10:11.10 |
-04:10:24.8 |
HIP 114355 |
15.30 |
| 2026-04-04 00:00 |
23:11:01.85 |
-04:04:28.5 |
HIP 114553 |
19.58 |
| 2026-04-04 12:00 |
23:11:52.58 |
-03:58:31.9 |
HIP 114553 |
5.61 |
| 2026-04-05 00:00 |
23:12:43.28 |
-03:52:35.1 |
HIP 114553 |
8.37 |
| 2026-04-05 12:00 |
23:13:33.94 |
-03:46:38.1 |
HIP 114553 |
22.34 |
| 2026-04-06 00:00 |
23:14:24.58 |
-03:40:40.8 |
HIP 114822 |
20.52 |
| 2026-04-06 12:00 |
23:15:15.19 |
-03:34:43.3 |
HIP 114822 |
6.86 |
| 2026-04-07 00:00 |
23:16:05.77 |
-03:28:45.5 |
HIP 114822 |
7.93 |
| 2026-04-07 12:00 |
23:16:56.32 |
-03:22:47.6 |
HIP 114822 |
21.64 |
| 2026-04-08 00:00 |
23:17:46.84 |
-03:16:49.4 |
HIP 115037 |
15.45 |
| 2026-04-08 12:00 |
23:18:37.34 |
-03:10:51.1 |
HIP 115037 |
13.81 |
| 2026-04-09 00:00 |
23:19:27.80 |
-03:04:52.5 |
HIP 115037 |
23.05 |
| 2026-04-09 12:00 |
23:20:18.24 |
-02:58:53.7 |
HIP 115294 |
31.92 |
| 2026-04-10 00:00 |
23:21:08.64 |
-02:52:54.8 |
HIP 115294 |
24.31 |
| 2026-04-10 12:00 |
23:21:59.02 |
-02:46:55.6 |
HIP 115294 |
23.47 |
| 2026-04-11 00:00 |
23:22:49.37 |
-02:40:56.3 |
HIP 115294 |
29.98 |
| 2026-04-11 12:00 |
23:23:39.68 |
-02:34:56.8 |
HIP 115464 |
38.19 |
| 2026-04-12 00:00 |
23:24:29.97 |
-02:28:57.2 |
HIP 115595 |
28.54 |
| 2026-04-12 12:00 |
23:25:20.23 |
-02:22:57.4 |
HIP 115595 |
22.74 |
| 2026-04-13 00:00 |
23:26:10.46 |
-02:16:57.4 |
HIP 115595 |
24.63 |
| 2026-04-13 12:00 |
23:27:00.66 |
-02:10:57.3 |
HIP 115845 |
23.25 |
| 2026-04-14 00:00 |
23:27:50.83 |
-02:04:57.1 |
HIP 115845 |
22.38 |
| 2026-04-14 12:00 |
23:28:40.97 |
-01:58:56.7 |
HIP 115945 |
16.25 |
| 2026-04-15 00:00 |
23:29:31.08 |
-01:52:56.2 |
HIP 115945 |
5.56 |
| 2026-04-15 12:00 |
23:30:21.16 |
-01:46:55.6 |
HIP 115945 |
13.55 |
| 2026-04-16 00:00 |
23:31:11.21 |
-01:40:54.9 |
HIP 115945 |
26.85 |