メタデータ
| 項目 |
値 |
| Designation |
430P/Scotti |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-06-14T14:13:40.632960Z |
| Orbit solution date (soln_date, UTC) |
2022-06-07T21:45:37Z |
| Obs used |
314 |
| NEO |
- |
| M1 |
16.900 |
| K1 |
5.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2014-05-22.0000000 |
| e |
0.49966940 |
| q (au) |
1.554418 |
| a (au) |
3.106781 |
| i (deg) |
4.474476 |
| Ω (om, deg) |
54.691887 |
| ω (w, deg) |
94.571829 |
| M (ma, deg) |
224.184036 |
等級
散乱 + 全体線形
$$
M_a = (13.113 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.113 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
1.000 |
| 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) |
| 2026-09-20 00:00 |
04:27:44.45 |
+21:00:09.7 |
HIP 20785 |
8.68 |
| 2026-09-20 12:00 |
04:28:03.98 |
+21:01:23.3 |
HIP 20785 |
13.35 |
| 2026-09-21 00:00 |
04:28:23.22 |
+21:02:36.5 |
HIP 20785 |
17.98 |
| 2026-09-21 12:00 |
04:28:42.18 |
+21:03:49.2 |
HIP 20785 |
22.55 |
| 2026-09-22 00:00 |
04:29:00.84 |
+21:05:01.4 |
HIP 20994 |
20.00 |
| 2026-09-22 12:00 |
04:29:19.21 |
+21:06:13.2 |
HIP 20994 |
17.76 |
| 2026-09-23 00:00 |
04:29:37.28 |
+21:07:24.4 |
HIP 20994 |
16.46 |
| 2026-09-23 12:00 |
04:29:55.05 |
+21:08:35.2 |
HIP 20994 |
16.28 |
| 2026-09-24 00:00 |
04:30:12.51 |
+21:09:45.5 |
HIP 20994 |
17.20 |
| 2026-09-24 12:00 |
04:30:29.67 |
+21:10:55.4 |
HIP 20994 |
19.01 |
| 2026-09-25 00:00 |
04:30:46.52 |
+21:12:04.7 |
HIP 20994 |
21.46 |
| 2026-09-25 12:00 |
04:31:03.06 |
+21:13:13.6 |
HIP 20994 |
24.31 |
| 2026-09-26 00:00 |
04:31:19.28 |
+21:14:22.1 |
HIP 21158 |
26.15 |
| 2026-09-26 12:00 |
04:31:35.18 |
+21:15:30.1 |
HIP 21158 |
23.70 |
| 2026-09-27 00:00 |
04:31:50.76 |
+21:16:37.6 |
HIP 21158 |
21.68 |
| 2026-09-27 12:00 |
04:32:06.02 |
+21:17:44.7 |
HIP 21158 |
20.20 |
| 2026-09-28 00:00 |
04:32:20.94 |
+21:18:51.3 |
HIP 21158 |
19.33 |
| 2026-09-28 12:00 |
04:32:35.53 |
+21:19:57.5 |
HIP 21256 |
18.02 |
| 2026-09-29 00:00 |
04:32:49.78 |
+21:21:03.2 |
HIP 21256 |
16.29 |
| 2026-09-29 12:00 |
04:33:03.70 |
+21:22:08.5 |
HIP 21256 |
15.22 |
| 2026-09-30 00:00 |
04:33:17.27 |
+21:23:13.3 |
HIP 21256 |
14.90 |
| 2026-09-30 12:00 |
04:33:30.49 |
+21:24:17.7 |
HIP 21256 |
15.32 |
| 2026-10-01 00:00 |
04:33:43.36 |
+21:25:21.6 |
HIP 21256 |
16.37 |
| 2026-10-01 12:00 |
04:33:55.88 |
+21:26:25.1 |
HIP 21256 |
17.90 |
| 2026-10-02 00:00 |
04:34:08.04 |
+21:27:28.2 |
HIP 21256 |
19.77 |
| 2026-10-02 12:00 |
04:34:19.84 |
+21:28:30.8 |
HIP 21256 |
21.85 |
| 2026-10-03 00:00 |
04:34:31.27 |
+21:29:32.9 |
HIP 21318 |
23.22 |
| 2026-10-03 12:00 |
04:34:42.33 |
+21:30:34.7 |
HIP 21436 |
21.37 |
| 2026-10-04 00:00 |
04:34:53.01 |
+21:31:36.0 |
HIP 21436 |
18.83 |
| 2026-10-04 12:00 |
04:35:03.32 |
+21:32:36.8 |
HIP 21436 |
16.43 |
| 2026-10-05 00:00 |
04:35:13.25 |
+21:33:37.2 |
HIP 21436 |
14.18 |
| 2026-10-05 12:00 |
04:35:22.79 |
+21:34:37.2 |
HIP 21436 |
12.14 |
| 2026-10-06 00:00 |
04:35:31.94 |
+21:35:36.7 |
HIP 21436 |
10.34 |
| 2026-10-06 12:00 |
04:35:40.71 |
+21:36:35.9 |
HIP 21436 |
8.89 |
| 2026-10-07 00:00 |
04:35:49.07 |
+21:37:34.5 |
HIP 21442 |
7.63 |
| 2026-10-07 12:00 |
04:35:57.04 |
+21:38:32.8 |
HIP 21442 |
5.54 |
| 2026-10-08 00:00 |
04:36:04.61 |
+21:39:30.6 |
HIP 21442 |
3.53 |
| 2026-10-08 12:00 |
04:36:11.77 |
+21:40:28.0 |
HIP 21442 |
1.62 |
| 2026-10-09 00:00 |
04:36:18.52 |
+21:41:25.0 |
HIP 21442 |
0.23 |
| 2026-10-09 12:00 |
04:36:24.86 |
+21:42:21.5 |
HIP 21442 |
1.97 |
| 2026-10-10 00:00 |
04:36:30.78 |
+21:43:17.7 |
HIP 21442 |
3.63 |
| 2026-10-10 12:00 |
04:36:36.29 |
+21:44:13.4 |
HIP 21442 |
5.21 |
| 2026-10-11 00:00 |
04:36:41.38 |
+21:45:08.6 |
HIP 21442 |
6.70 |