メタデータ
| 項目 |
値 |
| Designation |
223P/Skiff |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-08-14T12:28:20.533440Z |
| Orbit solution date (soln_date, UTC) |
2023-01-14T00:13:32Z |
| Obs used |
776 |
| NEO |
- |
| M1 |
15.500 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2011-09-02.0000000 |
| e |
0.41643283 |
| q (au) |
2.420478 |
| a (au) |
4.147728 |
| i (deg) |
27.054381 |
| Ω (om, deg) |
346.824301 |
| ω (w, deg) |
37.861800 |
| M (ma, deg) |
44.743681 |
等級
散乱 + 全体線形
$$
M_a = (17.223 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.223 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.631 |
| k |
0.800 |
| 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
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) |
| 2026-06-01 00:00 |
21:11:25.13 |
-45:22:34.3 |
HIP 104613 |
18.13 |
| 2026-06-01 12:00 |
21:11:27.49 |
-45:24:36.2 |
HIP 104613 |
20.15 |
| 2026-06-02 00:00 |
21:11:29.48 |
-45:26:38.8 |
HIP 104613 |
22.19 |
| 2026-06-02 12:00 |
21:11:31.07 |
-45:28:42.1 |
HIP 104761 |
21.90 |
| 2026-06-03 00:00 |
21:11:32.28 |
-45:30:46.1 |
HIP 104761 |
20.84 |
| 2026-06-03 12:00 |
21:11:33.10 |
-45:32:50.7 |
HIP 104761 |
20.01 |
| 2026-06-04 00:00 |
21:11:33.52 |
-45:34:56.0 |
HIP 104761 |
19.43 |
| 2026-06-04 12:00 |
21:11:33.56 |
-45:37:01.8 |
HIP 104761 |
19.13 |
| 2026-06-05 00:00 |
21:11:33.19 |
-45:39:08.3 |
HIP 104761 |
19.13 |
| 2026-06-05 12:00 |
21:11:32.43 |
-45:41:15.3 |
HIP 104761 |
19.43 |
| 2026-06-06 00:00 |
21:11:31.26 |
-45:43:22.9 |
HIP 104761 |
20.02 |
| 2026-06-06 12:00 |
21:11:29.70 |
-45:45:31.0 |
HIP 104761 |
20.88 |
| 2026-06-07 00:00 |
21:11:27.73 |
-45:47:39.6 |
HIP 104761 |
21.99 |
| 2026-06-07 12:00 |
21:11:25.35 |
-45:49:48.7 |
HIP 104761 |
23.32 |
| 2026-06-08 00:00 |
21:11:22.57 |
-45:51:58.2 |
HIP 104761 |
24.83 |
| 2026-06-08 12:00 |
21:11:19.37 |
-45:54:08.2 |
HIP 104761 |
26.50 |
| 2026-06-09 00:00 |
21:11:15.77 |
-45:56:18.5 |
HIP 104761 |
28.31 |
| 2026-06-09 12:00 |
21:11:11.75 |
-45:58:29.2 |
HIP 104761 |
30.24 |
| 2026-06-10 00:00 |
21:11:07.32 |
-46:00:40.3 |
HIP 104761 |
32.27 |
| 2026-06-10 12:00 |
21:11:02.47 |
-46:02:51.6 |
HIP 104332 |
31.96 |
| 2026-06-11 00:00 |
21:10:57.20 |
-46:05:03.3 |
HIP 104332 |
30.55 |
| 2026-06-11 12:00 |
21:10:51.51 |
-46:07:15.2 |
HIP 104332 |
29.20 |
| 2026-06-12 00:00 |
21:10:45.41 |
-46:09:27.2 |
HIP 104332 |
27.93 |
| 2026-06-12 12:00 |
21:10:38.88 |
-46:11:39.5 |
HIP 104332 |
26.74 |
| 2026-06-13 00:00 |
21:10:31.93 |
-46:13:51.9 |
HIP 104633 |
25.29 |
| 2026-06-13 12:00 |
21:10:24.55 |
-46:16:04.5 |
HIP 104633 |
24.03 |
| 2026-06-14 00:00 |
21:10:16.75 |
-46:18:17.1 |
HIP 104633 |
23.03 |
| 2026-06-14 12:00 |
21:10:08.53 |
-46:20:29.7 |
HIP 104633 |
22.34 |
| 2026-06-15 00:00 |
21:09:59.87 |
-46:22:42.3 |
HIP 104326 |
21.59 |
| 2026-06-15 12:00 |
21:09:50.80 |
-46:24:54.9 |
HIP 104326 |
19.47 |
| 2026-06-16 00:00 |
21:09:41.29 |
-46:27:07.5 |
HIP 104326 |
17.43 |
| 2026-06-16 12:00 |
21:09:31.36 |
-46:29:19.9 |
HIP 104326 |
15.54 |
| 2026-06-17 00:00 |
21:09:21.00 |
-46:31:32.1 |
HIP 104326 |
13.89 |
| 2026-06-17 12:00 |
21:09:10.21 |
-46:33:44.2 |
HIP 104424 |
12.34 |
| 2026-06-18 00:00 |
21:08:58.99 |
-46:35:56.0 |
HIP 104424 |
10.39 |
| 2026-06-18 12:00 |
21:08:47.35 |
-46:38:07.5 |
HIP 104424 |
9.02 |
| 2026-06-19 00:00 |
21:08:35.28 |
-46:40:18.7 |
HIP 104424 |
8.56 |
| 2026-06-19 12:00 |
21:08:22.78 |
-46:42:29.6 |
HIP 104424 |
9.20 |
| 2026-06-20 00:00 |
21:08:09.86 |
-46:44:40.0 |
HIP 104424 |
10.77 |
| 2026-06-20 12:00 |
21:07:56.51 |
-46:46:50.0 |
HIP 104424 |
12.98 |
| 2026-06-21 00:00 |
21:07:42.74 |
-46:48:59.5 |
HIP 104424 |
15.59 |
| 2026-06-21 12:00 |
21:07:28.54 |
-46:51:08.5 |
HIP 104424 |
18.45 |
| 2026-06-22 00:00 |
21:07:13.92 |
-46:53:17.0 |
HIP 104424 |
21.48 |