352P/Skiff
メタデータ
| 項目 |
値 |
| Designation |
352P/Skiff |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-06-21T01:08:15.377280Z |
| Orbit solution date (soln_date, UTC) |
2023-05-03T22:44:48Z |
| Obs used |
637 |
| NEO |
- |
| M1 |
10.900 |
| K1 |
11.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-10-28.0000000 |
| e |
0.61766865 |
| q (au) |
2.522709 |
| a (au) |
6.598227 |
| i (deg) |
21.064633 |
| Ω (om, deg) |
28.143742 |
| ω (w, deg) |
309.351302 |
| M (ma, deg) |
261.313630 |
等級
散乱 + 全体線形
$$
M_a = (14.224 + 2.671\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.224 |
| n |
2.671 |
| gf |
0.980 |
| gb |
-0.545 |
| k |
0.800 |
| δ90 |
9.527 |
| 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 |
11:23:01.83 |
+22:58:51.3 |
HIP 55562 |
28.40 |
| 2026-02-03 12:00 |
11:22:54.01 |
+22:59:59.3 |
HIP 55562 |
29.43 |
| 2026-02-04 00:00 |
11:22:46.11 |
+23:01:07.4 |
HIP 55402 |
29.39 |
| 2026-02-04 12:00 |
11:22:38.15 |
+23:02:15.3 |
HIP 55402 |
28.00 |
| 2026-02-05 00:00 |
11:22:30.12 |
+23:03:23.2 |
HIP 55402 |
26.69 |
| 2026-02-05 12:00 |
11:22:22.02 |
+23:04:31.1 |
HIP 55402 |
25.48 |
| 2026-02-06 00:00 |
11:22:13.85 |
+23:05:38.8 |
HIP 55402 |
24.39 |
| 2026-02-06 12:00 |
11:22:05.62 |
+23:06:46.5 |
HIP 55402 |
23.45 |
| 2026-02-07 00:00 |
11:21:57.33 |
+23:07:54.1 |
HIP 55402 |
22.67 |
| 2026-02-07 12:00 |
11:21:48.97 |
+23:09:01.6 |
HIP 55402 |
22.08 |
| 2026-02-08 00:00 |
11:21:40.54 |
+23:10:08.9 |
HIP 55402 |
21.69 |
| 2026-02-08 12:00 |
11:21:32.06 |
+23:11:16.1 |
HIP 55402 |
21.52 |
| 2026-02-09 00:00 |
11:21:23.51 |
+23:12:23.2 |
HIP 55402 |
21.58 |
| 2026-02-09 12:00 |
11:21:14.90 |
+23:13:30.2 |
HIP 55402 |
21.86 |
| 2026-02-10 00:00 |
11:21:06.23 |
+23:14:37.0 |
HIP 55402 |
22.37 |
| 2026-02-10 12:00 |
11:20:57.50 |
+23:15:43.6 |
HIP 55398 |
21.69 |
| 2026-02-11 00:00 |
11:20:48.72 |
+23:16:50.1 |
HIP 55398 |
20.23 |
| 2026-02-11 12:00 |
11:20:39.88 |
+23:17:56.4 |
HIP 55398 |
18.95 |
| 2026-02-12 00:00 |
11:20:30.98 |
+23:19:02.5 |
HIP 55398 |
17.88 |
| 2026-02-12 12:00 |
11:20:22.03 |
+23:20:08.4 |
HIP 55398 |
17.06 |
| 2026-02-13 00:00 |
11:20:13.02 |
+23:21:14.2 |
HIP 55398 |
16.55 |
| 2026-02-13 12:00 |
11:20:03.96 |
+23:22:19.7 |
HIP 55398 |
16.36 |
| 2026-02-14 00:00 |
11:19:54.85 |
+23:23:24.9 |
HIP 55398 |
16.51 |
| 2026-02-14 12:00 |
11:19:45.69 |
+23:24:30.0 |
HIP 55398 |
17.01 |
| 2026-02-15 00:00 |
11:19:36.48 |
+23:25:34.8 |
HIP 55398 |
17.81 |
| 2026-02-15 12:00 |
11:19:27.21 |
+23:26:39.3 |
HIP 55398 |
18.90 |
| 2026-02-16 00:00 |
11:19:17.90 |
+23:27:43.6 |
HIP 55398 |
20.22 |
| 2026-02-16 12:00 |
11:19:08.55 |
+23:28:47.7 |
HIP 55398 |
21.73 |
| 2026-02-17 00:00 |
11:18:59.15 |
+23:29:51.4 |
HIP 55398 |
23.40 |
| 2026-02-17 12:00 |
11:18:49.70 |
+23:30:54.9 |
HIP 55398 |
25.20 |
| 2026-02-18 00:00 |
11:18:40.21 |
+23:31:58.1 |
HIP 55398 |
27.11 |
| 2026-02-18 12:00 |
11:18:30.68 |
+23:33:00.9 |
HIP 55398 |
29.10 |
| 2026-02-19 00:00 |
11:18:21.11 |
+23:34:03.5 |
HIP 55398 |
31.16 |
| 2026-02-19 12:00 |
11:18:11.50 |
+23:35:05.7 |
HIP 55398 |
33.28 |
| 2026-02-20 00:00 |
11:18:01.85 |
+23:36:07.6 |
HIP 55398 |
35.45 |
| 2026-02-20 12:00 |
11:17:52.16 |
+23:37:09.2 |
HIP 55398 |
37.66 |
| 2026-02-21 00:00 |
11:17:42.43 |
+23:38:10.4 |
HIP 55398 |
39.91 |
| 2026-02-21 12:00 |
11:17:32.67 |
+23:39:11.2 |
HIP 55061 |
38.30 |
| 2026-02-22 00:00 |
11:17:22.88 |
+23:40:11.7 |
HIP 55061 |
36.45 |
| 2026-02-22 12:00 |
11:17:13.05 |
+23:41:11.8 |
HIP 55061 |
34.68 |
| 2026-02-23 00:00 |
11:17:03.19 |
+23:42:11.6 |
HIP 55061 |
32.99 |
| 2026-02-23 12:00 |
11:16:53.30 |
+23:43:10.9 |
HIP 55061 |
31.42 |
| 2026-02-24 00:00 |
11:16:43.38 |
+23:44:09.9 |
HIP 55061 |
29.97 |