54P/de Vico-Swift-NEAT
メタデータ
| 項目 |
値 |
| Designation |
54P/de Vico-Swift-NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-09-03T15:26:15.469440Z |
| Orbit solution date (soln_date, UTC) |
2024-12-30T09:36:39Z |
| Obs used |
275 |
| NEO |
- |
| M1 |
14.200 |
| K1 |
12.250 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2021-09-04.0000000 |
| e |
0.42608476 |
| q (au) |
2.175873 |
| a (au) |
3.791280 |
| i (deg) |
6.064463 |
| Ω (om, deg) |
358.816365 |
| ω (w, deg) |
1.789059 |
| M (ma, deg) |
213.716794 |
等級
散乱 + 全体線形
$$
M_a = (12.781 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.781 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.709 |
| k |
0.993 |
| δ90 |
10.000 |
| 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 |
07:51:09.16 |
+27:59:25.5 |
HIP 38341 |
9.58 |
| 2026-02-03 12:00 |
07:50:46.77 |
+27:59:41.5 |
HIP 38341 |
11.42 |
| 2026-02-04 00:00 |
07:50:24.58 |
+27:59:56.3 |
HIP 38231 |
13.44 |
| 2026-02-04 12:00 |
07:50:02.57 |
+28:00:09.9 |
HIP 38231 |
11.83 |
| 2026-02-05 00:00 |
07:49:40.75 |
+28:00:22.3 |
HIP 38231 |
12.10 |
| 2026-02-05 12:00 |
07:49:19.14 |
+28:00:33.6 |
HIP 38231 |
14.11 |
| 2026-02-06 00:00 |
07:48:57.73 |
+28:00:43.7 |
HIP 38231 |
17.22 |
| 2026-02-06 12:00 |
07:48:36.52 |
+28:00:52.7 |
HIP 38231 |
20.91 |
| 2026-02-07 00:00 |
07:48:15.52 |
+28:01:00.5 |
HIP 38231 |
24.90 |
| 2026-02-07 12:00 |
07:47:54.74 |
+28:01:07.2 |
HIP 38231 |
29.05 |
| 2026-02-08 00:00 |
07:47:34.17 |
+28:01:12.8 |
HIP 37826 |
29.75 |
| 2026-02-08 12:00 |
07:47:13.83 |
+28:01:17.2 |
HIP 37826 |
25.26 |
| 2026-02-09 00:00 |
07:46:53.70 |
+28:01:20.4 |
HIP 37826 |
20.82 |
| 2026-02-09 12:00 |
07:46:33.81 |
+28:01:22.6 |
HIP 37826 |
16.43 |
| 2026-02-10 00:00 |
07:46:14.15 |
+28:01:23.6 |
HIP 37826 |
12.09 |
| 2026-02-10 12:00 |
07:45:54.72 |
+28:01:23.5 |
HIP 37826 |
7.80 |
| 2026-02-11 00:00 |
07:45:35.53 |
+28:01:22.3 |
HIP 37826 |
3.57 |
| 2026-02-11 12:00 |
07:45:16.58 |
+28:01:20.0 |
HIP 37826 |
0.66 |
| 2026-02-12 00:00 |
07:44:57.88 |
+28:01:16.6 |
HIP 37826 |
4.75 |
| 2026-02-12 12:00 |
07:44:39.42 |
+28:01:12.1 |
HIP 37826 |
8.82 |
| 2026-02-13 00:00 |
07:44:21.21 |
+28:01:06.5 |
HIP 37826 |
12.84 |
| 2026-02-13 12:00 |
07:44:03.26 |
+28:00:59.9 |
HIP 37826 |
16.81 |
| 2026-02-14 00:00 |
07:43:45.56 |
+28:00:52.2 |
HIP 37826 |
20.71 |
| 2026-02-14 12:00 |
07:43:28.12 |
+28:00:43.4 |
HIP 37826 |
24.57 |
| 2026-02-15 00:00 |
07:43:10.94 |
+28:00:33.6 |
HIP 37826 |
28.36 |
| 2026-02-15 12:00 |
07:42:54.03 |
+28:00:22.7 |
HIP 37407 |
27.68 |
| 2026-02-16 00:00 |
07:42:37.38 |
+28:00:10.8 |
HIP 37407 |
24.01 |
| 2026-02-16 12:00 |
07:42:21.00 |
+27:59:57.8 |
HIP 37407 |
20.40 |
| 2026-02-17 00:00 |
07:42:04.90 |
+27:59:43.9 |
HIP 37407 |
16.86 |
| 2026-02-17 12:00 |
07:41:49.06 |
+27:59:28.9 |
HIP 37407 |
13.38 |
| 2026-02-18 00:00 |
07:41:33.51 |
+27:59:12.9 |
HIP 37407 |
9.97 |
| 2026-02-18 12:00 |
07:41:18.23 |
+27:58:56.0 |
HIP 37407 |
6.66 |
| 2026-02-19 00:00 |
07:41:03.23 |
+27:58:38.0 |
HIP 37407 |
3.53 |
| 2026-02-19 12:00 |
07:40:48.52 |
+27:58:19.1 |
HIP 37407 |
1.62 |
| 2026-02-20 00:00 |
07:40:34.08 |
+27:57:59.2 |
HIP 37407 |
3.69 |
| 2026-02-20 12:00 |
07:40:19.94 |
+27:57:38.3 |
HIP 37407 |
6.65 |
| 2026-02-21 00:00 |
07:40:06.08 |
+27:57:16.5 |
HIP 37407 |
9.67 |
| 2026-02-21 12:00 |
07:39:52.51 |
+27:56:53.8 |
HIP 37407 |
12.65 |
| 2026-02-22 00:00 |
07:39:39.23 |
+27:56:30.1 |
HIP 37407 |
15.58 |
| 2026-02-22 12:00 |
07:39:26.24 |
+27:56:05.5 |
HIP 37407 |
18.46 |
| 2026-02-23 00:00 |
07:39:13.54 |
+27:55:40.0 |
HIP 37407 |
21.28 |
| 2026-02-23 12:00 |
07:39:01.14 |
+27:55:13.6 |
HIP 37131 |
19.71 |
| 2026-02-24 00:00 |
07:38:49.03 |
+27:54:46.3 |
HIP 37131 |
17.26 |