メタデータ
| 項目 |
値 |
| Designation |
P/2010 H4 (Scotti) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-07-03T04:12:20.969280Z |
| Orbit solution date (soln_date, UTC) |
2024-04-13T16:42:57Z |
| Obs used |
56 |
| NEO |
- |
| M1 |
10.900 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-05-03.0000000 |
| e |
0.27215157 |
| q (au) |
4.820821 |
| a (au) |
6.623386 |
| i (deg) |
2.314372 |
| Ω (om, deg) |
44.846591 |
| ω (w, deg) |
181.161990 |
| M (ma, deg) |
356.462799 |
等級
散乱 + 全体線形
$$
M_a = (6.615 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.615 |
| n |
6.000 |
| gf |
0.992 |
| gb |
-0.974 |
| k |
1.000 |
| 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) |
| 2026-07-29 00:00 |
12:09:20.68 |
+00:14:12.8 |
HIP 59376 |
25.70 |
| 2026-07-29 12:00 |
12:09:40.67 |
+00:11:51.9 |
HIP 59376 |
22.34 |
| 2026-07-30 00:00 |
12:10:00.77 |
+00:09:30.3 |
HIP 59376 |
19.96 |
| 2026-07-30 12:00 |
12:10:20.95 |
+00:07:08.3 |
HIP 59429 |
16.73 |
| 2026-07-31 00:00 |
12:10:41.23 |
+00:04:45.6 |
HIP 59429 |
13.01 |
| 2026-07-31 12:00 |
12:11:01.60 |
+00:02:22.5 |
HIP 59429 |
11.00 |
| 2026-08-01 00:00 |
12:11:22.06 |
-00:00:01.2 |
HIP 59429 |
11.68 |
| 2026-08-01 12:00 |
12:11:42.60 |
-00:02:25.5 |
HIP 59429 |
14.69 |
| 2026-08-02 00:00 |
12:12:03.24 |
-00:04:50.2 |
HIP 59429 |
18.99 |
| 2026-08-02 12:00 |
12:12:23.97 |
-00:07:15.5 |
HIP 59476 |
22.90 |
| 2026-08-03 00:00 |
12:12:44.79 |
-00:09:41.3 |
HIP 59476 |
22.89 |
| 2026-08-03 12:00 |
12:13:05.69 |
-00:12:07.6 |
HIP 59476 |
24.28 |
| 2026-08-04 00:00 |
12:13:26.69 |
-00:14:34.5 |
HIP 59641 |
24.65 |
| 2026-08-04 12:00 |
12:13:47.77 |
-00:17:01.8 |
HIP 59641 |
21.35 |
| 2026-08-05 00:00 |
12:14:08.93 |
-00:19:29.6 |
HIP 59641 |
19.28 |
| 2026-08-05 12:00 |
12:14:30.18 |
-00:21:58.0 |
HIP 59641 |
18.86 |
| 2026-08-06 00:00 |
12:14:51.52 |
-00:24:26.8 |
HIP 59733 |
15.36 |
| 2026-08-06 12:00 |
12:15:12.94 |
-00:26:56.2 |
HIP 59733 |
13.11 |
| 2026-08-07 00:00 |
12:15:34.45 |
-00:29:26.0 |
HIP 59733 |
13.32 |
| 2026-08-07 12:00 |
12:15:56.04 |
-00:31:56.3 |
HIP 59733 |
15.93 |
| 2026-08-08 00:00 |
12:16:17.71 |
-00:34:27.1 |
HIP 59733 |
20.04 |
| 2026-08-08 12:00 |
12:16:39.47 |
-00:36:58.3 |
HIP 59733 |
24.94 |
| 2026-08-09 00:00 |
12:17:01.31 |
-00:39:30.1 |
HIP 60030 |
25.92 |
| 2026-08-09 12:00 |
12:17:23.23 |
-00:42:02.3 |
HIP 60030 |
19.95 |
| 2026-08-10 00:00 |
12:17:45.23 |
-00:44:34.9 |
HIP 60030 |
14.02 |
| 2026-08-10 12:00 |
12:18:07.31 |
-00:47:08.1 |
HIP 60030 |
8.25 |
| 2026-08-11 00:00 |
12:18:29.47 |
-00:49:41.6 |
HIP 60030 |
3.66 |
| 2026-08-11 12:00 |
12:18:51.71 |
-00:52:15.6 |
HIP 60030 |
5.78 |
| 2026-08-12 00:00 |
12:19:14.03 |
-00:54:50.1 |
HIP 60030 |
11.36 |
| 2026-08-12 12:00 |
12:19:36.42 |
-00:57:25.0 |
HIP 60030 |
17.34 |
| 2026-08-13 00:00 |
12:19:58.90 |
-01:00:00.3 |
HIP 60129 |
20.03 |
| 2026-08-13 12:00 |
12:20:21.45 |
-01:02:36.1 |
HIP 60129 |
23.59 |
| 2026-08-14 00:00 |
12:20:44.07 |
-01:05:12.3 |
HIP 60129 |
28.09 |
| 2026-08-14 12:00 |
12:21:06.77 |
-01:07:48.9 |
HIP 60402 |
31.70 |
| 2026-08-15 00:00 |
12:21:29.55 |
-01:10:25.9 |
HIP 60402 |
27.74 |
| 2026-08-15 12:00 |
12:21:52.39 |
-01:13:03.3 |
HIP 60402 |
24.74 |
| 2026-08-16 00:00 |
12:22:15.31 |
-01:15:41.1 |
HIP 60402 |
23.10 |
| 2026-08-16 12:00 |
12:22:38.31 |
-01:18:19.3 |
HIP 60402 |
23.12 |
| 2026-08-17 00:00 |
12:23:01.37 |
-01:20:57.9 |
HIP 60402 |
24.82 |
| 2026-08-17 12:00 |
12:23:24.51 |
-01:23:36.9 |
HIP 60402 |
27.89 |
| 2026-08-18 00:00 |
12:23:47.71 |
-01:26:16.3 |
HIP 60410 |
30.02 |
| 2026-08-18 12:00 |
12:24:10.99 |
-01:28:56.0 |
HIP 60602 |
29.88 |
| 2026-08-19 00:00 |
12:24:34.33 |
-01:31:36.1 |
HIP 60602 |
29.50 |