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
$$
M_a = (16.325 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.325 |
| n |
2.000 |
| gf |
0.948 |
| gb |
-0.761 |
| k |
0.999 |
| δ90 |
8.702 |
| 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) |
| 2026-07-29 00:00 |
02:07:15.85 |
+17:33:54.4 |
HIP 9777 |
22.57 |
| 2026-07-29 12:00 |
02:07:50.99 |
+17:38:24.0 |
HIP 10013 |
16.07 |
| 2026-07-30 00:00 |
02:08:25.95 |
+17:42:52.6 |
HIP 10013 |
10.93 |
| 2026-07-30 12:00 |
02:09:00.71 |
+17:47:20.3 |
HIP 10013 |
12.61 |
| 2026-07-31 00:00 |
02:09:35.29 |
+17:51:47.1 |
HIP 10013 |
19.34 |
| 2026-07-31 12:00 |
02:10:09.67 |
+17:56:13.0 |
HIP 10013 |
27.61 |
| 2026-08-01 00:00 |
02:10:43.86 |
+18:00:37.9 |
HIP 10295 |
26.51 |
| 2026-08-01 12:00 |
02:11:17.85 |
+18:05:01.9 |
HIP 10295 |
18.79 |
| 2026-08-02 00:00 |
02:11:51.63 |
+18:09:24.9 |
HIP 10295 |
13.16 |
| 2026-08-02 12:00 |
02:12:25.22 |
+18:13:47.0 |
HIP 10295 |
12.69 |
| 2026-08-03 00:00 |
02:12:58.60 |
+18:18:08.1 |
HIP 10295 |
17.70 |
| 2026-08-03 12:00 |
02:13:31.76 |
+18:22:28.3 |
HIP 10295 |
25.04 |
| 2026-08-04 00:00 |
02:14:04.72 |
+18:26:47.4 |
HIP 10496 |
29.67 |
| 2026-08-04 12:00 |
02:14:37.46 |
+18:31:05.6 |
HIP 10496 |
21.86 |
| 2026-08-05 00:00 |
02:15:09.98 |
+18:35:22.8 |
HIP 10496 |
15.29 |
| 2026-08-05 12:00 |
02:15:42.29 |
+18:39:39.0 |
HIP 10496 |
12.04 |
| 2026-08-06 00:00 |
02:16:14.37 |
+18:43:54.3 |
HIP 10496 |
14.43 |
| 2026-08-06 12:00 |
02:16:46.22 |
+18:48:08.5 |
HIP 10496 |
20.51 |
| 2026-08-07 00:00 |
02:17:17.84 |
+18:52:21.6 |
HIP 10701 |
25.90 |
| 2026-08-07 12:00 |
02:17:49.23 |
+18:56:33.8 |
HIP 10701 |
29.28 |
| 2026-08-08 00:00 |
02:18:20.38 |
+19:00:44.9 |
HIP 10701 |
34.46 |
| 2026-08-08 12:00 |
02:18:51.29 |
+19:04:55.0 |
HIP 10810 |
36.60 |
| 2026-08-09 00:00 |
02:19:21.96 |
+19:09:04.0 |
HIP 10810 |
32.36 |
| 2026-08-09 12:00 |
02:19:52.39 |
+19:13:12.0 |
HIP 10810 |
29.91 |
| 2026-08-10 00:00 |
02:20:22.56 |
+19:17:18.9 |
HIP 10810 |
29.62 |
| 2026-08-10 12:00 |
02:20:52.49 |
+19:21:24.8 |
HIP 11081 |
31.05 |
| 2026-08-11 00:00 |
02:21:22.15 |
+19:25:29.5 |
HIP 11081 |
28.53 |
| 2026-08-11 12:00 |
02:21:51.56 |
+19:29:33.2 |
HIP 11157 |
25.15 |
| 2026-08-12 00:00 |
02:22:20.71 |
+19:33:35.8 |
HIP 11157 |
17.39 |
| 2026-08-12 12:00 |
02:22:49.59 |
+19:37:37.3 |
HIP 11157 |
10.04 |
| 2026-08-13 00:00 |
02:23:18.21 |
+19:41:37.7 |
HIP 11157 |
4.96 |
| 2026-08-13 12:00 |
02:23:46.55 |
+19:45:36.9 |
HIP 11157 |
8.40 |
| 2026-08-14 00:00 |
02:24:14.62 |
+19:49:35.1 |
HIP 11157 |
15.35 |
| 2026-08-14 12:00 |
02:24:42.41 |
+19:53:32.1 |
HIP 11157 |
22.73 |
| 2026-08-15 00:00 |
02:25:09.92 |
+19:57:28.0 |
HIP 11329 |
21.22 |
| 2026-08-15 12:00 |
02:25:37.15 |
+20:01:22.7 |
HIP 11329 |
15.61 |
| 2026-08-16 00:00 |
02:26:04.10 |
+20:05:16.4 |
HIP 11329 |
12.22 |
| 2026-08-16 12:00 |
02:26:30.75 |
+20:09:08.8 |
HIP 11329 |
12.80 |
| 2026-08-17 00:00 |
02:26:57.11 |
+20:13:00.1 |
HIP 11329 |
16.87 |
| 2026-08-17 12:00 |
02:27:23.18 |
+20:16:50.3 |
HIP 11329 |
22.54 |
| 2026-08-18 00:00 |
02:27:48.95 |
+20:20:39.2 |
HIP 11329 |
28.84 |
| 2026-08-18 12:00 |
02:28:14.42 |
+20:24:27.1 |
HIP 11329 |
35.38 |
| 2026-08-19 00:00 |
02:28:39.59 |
+20:28:13.7 |
HIP 11617 |
37.63 |