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) |
| 2026-03-26 00:00 |
13:58:54.38 |
-09:16:07.5 |
HIP 68241 |
16.55 |
| 2026-03-26 12:00 |
13:58:39.51 |
-09:14:40.4 |
HIP 68241 |
13.28 |
| 2026-03-27 00:00 |
13:58:24.50 |
-09:13:12.7 |
HIP 68241 |
10.46 |
| 2026-03-27 12:00 |
13:58:09.35 |
-09:11:44.4 |
HIP 68241 |
8.61 |
| 2026-03-28 00:00 |
13:57:54.06 |
-09:10:15.4 |
HIP 68241 |
8.45 |
| 2026-03-28 12:00 |
13:57:38.63 |
-09:08:45.9 |
HIP 68241 |
10.09 |
| 2026-03-29 00:00 |
13:57:23.07 |
-09:07:15.7 |
HIP 68241 |
12.91 |
| 2026-03-29 12:00 |
13:57:07.39 |
-09:05:45.0 |
HIP 68241 |
16.32 |
| 2026-03-30 00:00 |
13:56:51.57 |
-09:04:13.8 |
HIP 68241 |
20.05 |
| 2026-03-30 12:00 |
13:56:35.63 |
-09:02:42.0 |
HIP 68241 |
23.96 |
| 2026-03-31 00:00 |
13:56:19.58 |
-09:01:09.7 |
HIP 68241 |
27.99 |
| 2026-03-31 12:00 |
13:56:03.40 |
-08:59:36.9 |
HIP 67967 |
26.25 |
| 2026-04-01 00:00 |
13:55:47.11 |
-08:58:03.6 |
HIP 67967 |
22.95 |
| 2026-04-01 12:00 |
13:55:30.71 |
-08:56:29.9 |
HIP 67967 |
20.01 |
| 2026-04-02 00:00 |
13:55:14.20 |
-08:54:55.7 |
HIP 67967 |
17.66 |
| 2026-04-02 12:00 |
13:54:57.58 |
-08:53:21.0 |
HIP 67967 |
16.16 |
| 2026-04-03 00:00 |
13:54:40.86 |
-08:51:46.0 |
HIP 67967 |
15.79 |
| 2026-04-03 12:00 |
13:54:24.04 |
-08:50:10.5 |
HIP 67967 |
16.65 |
| 2026-04-04 00:00 |
13:54:07.13 |
-08:48:34.7 |
HIP 67967 |
18.58 |
| 2026-04-04 12:00 |
13:53:50.12 |
-08:46:58.5 |
HIP 67855 |
17.97 |
| 2026-04-05 00:00 |
13:53:33.02 |
-08:45:21.9 |
HIP 67855 |
17.21 |
| 2026-04-05 12:00 |
13:53:15.83 |
-08:43:45.0 |
HIP 67855 |
17.62 |
| 2026-04-06 00:00 |
13:52:58.56 |
-08:42:07.8 |
HIP 67855 |
19.15 |
| 2026-04-06 12:00 |
13:52:41.21 |
-08:40:30.3 |
HIP 67855 |
21.57 |
| 2026-04-07 00:00 |
13:52:23.79 |
-08:38:52.5 |
HIP 67855 |
24.63 |
| 2026-04-07 12:00 |
13:52:06.29 |
-08:37:14.5 |
HIP 67855 |
28.13 |
| 2026-04-08 00:00 |
13:51:48.72 |
-08:35:36.2 |
HIP 67855 |
31.94 |
| 2026-04-08 12:00 |
13:51:31.08 |
-08:33:57.7 |
HIP 67855 |
35.96 |
| 2026-04-09 00:00 |
13:51:13.38 |
-08:32:19.0 |
HIP 67855 |
40.13 |
| 2026-04-09 12:00 |
13:50:55.61 |
-08:30:40.1 |
HIP 67402 |
36.68 |
| 2026-04-10 00:00 |
13:50:37.79 |
-08:29:01.1 |
HIP 67402 |
32.07 |
| 2026-04-10 12:00 |
13:50:19.92 |
-08:27:21.9 |
HIP 67402 |
27.49 |
| 2026-04-11 00:00 |
13:50:02.00 |
-08:25:42.5 |
HIP 67402 |
22.95 |
| 2026-04-11 12:00 |
13:49:44.03 |
-08:24:03.1 |
HIP 67402 |
18.50 |
| 2026-04-12 00:00 |
13:49:26.02 |
-08:22:23.6 |
HIP 67402 |
14.23 |
| 2026-04-12 12:00 |
13:49:07.96 |
-08:20:44.0 |
HIP 67402 |
10.39 |
| 2026-04-13 00:00 |
13:48:49.88 |
-08:19:04.4 |
HIP 67402 |
7.66 |
| 2026-04-13 12:00 |
13:48:31.76 |
-08:17:24.8 |
HIP 67402 |
7.41 |
| 2026-04-14 00:00 |
13:48:13.61 |
-08:15:45.1 |
HIP 67402 |
9.86 |
| 2026-04-14 12:00 |
13:47:55.44 |
-08:14:05.5 |
HIP 67333 |
12.71 |
| 2026-04-15 00:00 |
13:47:37.24 |
-08:12:25.9 |
HIP 67333 |
12.55 |
| 2026-04-15 12:00 |
13:47:19.03 |
-08:10:46.4 |
HIP 67333 |
14.13 |
| 2026-04-16 00:00 |
13:47:00.81 |
-08:09:06.9 |
HIP 67333 |
16.97 |