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) |
| 2026-05-12 00:00 |
07:59:48.87 |
+24:56:15.0 |
HIP 39148 |
10.25 |
| 2026-05-12 12:00 |
08:00:11.96 |
+24:54:35.8 |
HIP 39148 |
8.11 |
| 2026-05-13 00:00 |
08:00:35.17 |
+24:52:56.2 |
HIP 39148 |
9.33 |
| 2026-05-13 12:00 |
08:00:58.50 |
+24:51:16.2 |
HIP 39148 |
13.03 |
| 2026-05-14 00:00 |
08:01:21.94 |
+24:49:35.9 |
HIP 39297 |
13.34 |
| 2026-05-14 12:00 |
08:01:45.50 |
+24:47:55.3 |
HIP 39297 |
11.58 |
| 2026-05-15 00:00 |
08:02:09.17 |
+24:46:14.3 |
HIP 39297 |
12.38 |
| 2026-05-15 12:00 |
08:02:32.94 |
+24:44:33.0 |
HIP 39387 |
12.24 |
| 2026-05-16 00:00 |
08:02:56.83 |
+24:42:51.3 |
HIP 39387 |
7.94 |
| 2026-05-16 12:00 |
08:03:20.83 |
+24:41:09.3 |
HIP 39387 |
6.40 |
| 2026-05-17 00:00 |
08:03:44.94 |
+24:39:26.9 |
HIP 39387 |
9.20 |
| 2026-05-17 12:00 |
08:04:09.15 |
+24:37:44.2 |
HIP 39387 |
13.95 |
| 2026-05-18 00:00 |
08:04:33.46 |
+24:36:01.2 |
HIP 39528 |
16.35 |
| 2026-05-18 12:00 |
08:04:57.88 |
+24:34:17.8 |
HIP 39528 |
14.89 |
| 2026-05-19 00:00 |
08:05:22.41 |
+24:32:34.0 |
HIP 39528 |
15.63 |
| 2026-05-19 12:00 |
08:05:47.03 |
+24:30:49.9 |
HIP 39528 |
18.32 |
| 2026-05-20 00:00 |
08:06:11.75 |
+24:29:05.5 |
HIP 39686 |
21.07 |
| 2026-05-20 12:00 |
08:06:36.57 |
+24:27:20.7 |
HIP 39686 |
18.53 |
| 2026-05-21 00:00 |
08:07:01.49 |
+24:25:35.6 |
HIP 39686 |
17.69 |
| 2026-05-21 12:00 |
08:07:26.51 |
+24:23:50.2 |
HIP 39686 |
18.80 |
| 2026-05-22 00:00 |
08:07:51.61 |
+24:22:04.4 |
HIP 39790 |
20.98 |
| 2026-05-22 12:00 |
08:08:16.81 |
+24:20:18.3 |
HIP 39893 |
19.20 |
| 2026-05-23 00:00 |
08:08:42.11 |
+24:18:31.8 |
HIP 39893 |
19.17 |
| 2026-05-23 12:00 |
08:09:07.49 |
+24:16:45.0 |
HIP 39893 |
20.96 |
| 2026-05-24 00:00 |
08:09:32.96 |
+24:14:57.8 |
HIP 39893 |
24.17 |
| 2026-05-24 12:00 |
08:09:58.52 |
+24:13:10.4 |
HIP 40120 |
23.37 |
| 2026-05-25 00:00 |
08:10:24.17 |
+24:11:22.6 |
HIP 40120 |
17.55 |
| 2026-05-25 12:00 |
08:10:49.90 |
+24:09:34.4 |
HIP 40120 |
12.00 |
| 2026-05-26 00:00 |
08:11:15.71 |
+24:07:45.9 |
HIP 40120 |
7.43 |
| 2026-05-26 12:00 |
08:11:41.61 |
+24:05:57.1 |
HIP 40120 |
6.51 |
| 2026-05-27 00:00 |
08:12:07.59 |
+24:04:07.9 |
HIP 40120 |
10.31 |
| 2026-05-27 12:00 |
08:12:33.66 |
+24:02:18.5 |
HIP 40120 |
15.73 |
| 2026-05-28 00:00 |
08:12:59.80 |
+24:00:28.6 |
HIP 40120 |
21.61 |
| 2026-05-28 12:00 |
08:13:26.02 |
+23:58:38.5 |
HIP 40421 |
27.30 |
| 2026-05-29 00:00 |
08:13:52.32 |
+23:56:48.0 |
HIP 40421 |
21.23 |
| 2026-05-29 12:00 |
08:14:18.70 |
+23:54:57.2 |
HIP 40421 |
15.33 |
| 2026-05-30 00:00 |
08:14:45.15 |
+23:53:06.0 |
HIP 40421 |
9.91 |
| 2026-05-30 12:00 |
08:15:11.68 |
+23:51:14.5 |
HIP 40421 |
6.45 |
| 2026-05-31 00:00 |
08:15:38.28 |
+23:49:22.7 |
HIP 40421 |
8.10 |
| 2026-05-31 12:00 |
08:16:04.96 |
+23:47:30.6 |
HIP 40421 |
13.08 |
| 2026-06-01 00:00 |
08:16:31.70 |
+23:45:38.1 |
HIP 40421 |
18.94 |
| 2026-06-01 12:00 |
08:16:58.52 |
+23:43:45.3 |
HIP 40421 |
25.09 |
| 2026-06-02 00:00 |
08:17:25.41 |
+23:41:52.1 |
HIP 40421 |
31.36 |