メタデータ
| 項目 |
値 |
| Designation |
147P/Kushida-Muramatsu |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2008-09-23T19:01:26.480640Z |
| Orbit solution date (soln_date, UTC) |
2024-11-06T10:50:35Z |
| Obs used |
57 |
| NEO |
- |
| M1 |
13.600 |
| K1 |
11.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2005-10-30.0000000 |
| e |
0.27555443 |
| q (au) |
2.754546 |
| a (au) |
3.802282 |
| i (deg) |
2.368741 |
| Ω (om, deg) |
93.773792 |
| ω (w, deg) |
347.033193 |
| M (ma, deg) |
219.117040 |
等級
散乱 + 全体線形
$$
M_a = (13.842 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.842 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.999 |
| 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) |
| 2026-06-01 00:00 |
13:25:10.12 |
-06:21:52.4 |
HIP 65447 |
29.06 |
| 2026-06-01 12:00 |
13:25:03.29 |
-06:21:30.6 |
HIP 65447 |
29.15 |
| 2026-06-02 00:00 |
13:24:56.66 |
-06:21:10.1 |
HIP 65447 |
29.33 |
| 2026-06-02 12:00 |
13:24:50.24 |
-06:20:50.9 |
HIP 65447 |
29.58 |
| 2026-06-03 00:00 |
13:24:44.03 |
-06:20:33.0 |
HIP 65447 |
29.89 |
| 2026-06-03 12:00 |
13:24:38.02 |
-06:20:16.3 |
HIP 65447 |
30.26 |
| 2026-06-04 00:00 |
13:24:32.21 |
-06:20:00.8 |
HIP 65447 |
30.67 |
| 2026-06-04 12:00 |
13:24:26.61 |
-06:19:46.7 |
HIP 65265 |
29.74 |
| 2026-06-05 00:00 |
13:24:21.21 |
-06:19:33.7 |
HIP 65265 |
28.39 |
| 2026-06-05 12:00 |
13:24:16.03 |
-06:19:22.1 |
HIP 65265 |
27.09 |
| 2026-06-06 00:00 |
13:24:11.05 |
-06:19:11.7 |
HIP 65265 |
25.85 |
| 2026-06-06 12:00 |
13:24:06.27 |
-06:19:02.6 |
HIP 65265 |
24.67 |
| 2026-06-07 00:00 |
13:24:01.70 |
-06:18:54.7 |
HIP 65265 |
23.55 |
| 2026-06-07 12:00 |
13:23:57.34 |
-06:18:48.2 |
HIP 65265 |
22.48 |
| 2026-06-08 00:00 |
13:23:53.19 |
-06:18:42.8 |
HIP 65265 |
21.47 |
| 2026-06-08 12:00 |
13:23:49.25 |
-06:18:38.8 |
HIP 65265 |
20.52 |
| 2026-06-09 00:00 |
13:23:45.51 |
-06:18:36.0 |
HIP 65265 |
19.62 |
| 2026-06-09 12:00 |
13:23:41.99 |
-06:18:34.5 |
HIP 65265 |
18.79 |
| 2026-06-10 00:00 |
13:23:38.67 |
-06:18:34.2 |
HIP 65265 |
18.02 |
| 2026-06-10 12:00 |
13:23:35.56 |
-06:18:35.2 |
HIP 65265 |
17.30 |
| 2026-06-11 00:00 |
13:23:32.66 |
-06:18:37.5 |
HIP 65265 |
16.65 |
| 2026-06-11 12:00 |
13:23:29.96 |
-06:18:41.0 |
HIP 65265 |
16.06 |
| 2026-06-12 00:00 |
13:23:27.48 |
-06:18:45.9 |
HIP 65265 |
15.54 |
| 2026-06-12 12:00 |
13:23:25.21 |
-06:18:51.9 |
HIP 65265 |
15.07 |
| 2026-06-13 00:00 |
13:23:23.15 |
-06:18:59.3 |
HIP 65265 |
14.67 |
| 2026-06-13 12:00 |
13:23:21.29 |
-06:19:07.9 |
HIP 65265 |
14.34 |
| 2026-06-14 00:00 |
13:23:19.65 |
-06:19:17.7 |
HIP 65265 |
14.07 |
| 2026-06-14 12:00 |
13:23:18.21 |
-06:19:28.8 |
HIP 65265 |
13.86 |
| 2026-06-15 00:00 |
13:23:16.99 |
-06:19:41.2 |
HIP 65265 |
13.71 |
| 2026-06-15 12:00 |
13:23:15.97 |
-06:19:54.8 |
HIP 65265 |
13.63 |
| 2026-06-16 00:00 |
13:23:15.16 |
-06:20:09.7 |
HIP 65265 |
13.61 |
| 2026-06-16 12:00 |
13:23:14.57 |
-06:20:25.8 |
HIP 65265 |
13.66 |
| 2026-06-17 00:00 |
13:23:14.18 |
-06:20:43.2 |
HIP 65265 |
13.76 |
| 2026-06-17 12:00 |
13:23:14.00 |
-06:21:01.8 |
HIP 65265 |
13.92 |
| 2026-06-18 00:00 |
13:23:14.02 |
-06:21:21.7 |
HIP 65265 |
14.14 |
| 2026-06-18 12:00 |
13:23:14.26 |
-06:21:42.7 |
HIP 65265 |
14.42 |
| 2026-06-19 00:00 |
13:23:14.70 |
-06:22:05.1 |
HIP 65265 |
14.75 |
| 2026-06-19 12:00 |
13:23:15.35 |
-06:22:28.6 |
HIP 65265 |
15.13 |
| 2026-06-20 00:00 |
13:23:16.21 |
-06:22:53.3 |
HIP 65265 |
15.57 |
| 2026-06-20 12:00 |
13:23:17.27 |
-06:23:19.3 |
HIP 65265 |
16.06 |
| 2026-06-21 00:00 |
13:23:18.54 |
-06:23:46.5 |
HIP 65265 |
16.60 |
| 2026-06-21 12:00 |
13:23:20.01 |
-06:24:14.9 |
HIP 65265 |
17.20 |
| 2026-06-22 00:00 |
13:23:21.68 |
-06:24:44.4 |
HIP 65265 |
17.84 |