メタデータ
| 項目 |
値 |
| Designation |
192P/Shoemaker-Levy 1 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2007-12-14T02:44:52.307520Z |
| Orbit solution date (soln_date, UTC) |
2025-03-06T13:42:28Z |
| Obs used |
200 |
| NEO |
- |
| M1 |
11.500 |
| K1 |
18.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2014-08-19.0000000 |
| e |
0.77201142 |
| q (au) |
1.476460 |
| a (au) |
6.476025 |
| i (deg) |
24.543649 |
| Ω (om, deg) |
51.586767 |
| ω (w, deg) |
313.081833 |
| M (ma, deg) |
145.918634 |
等級
散乱 + 全体線形
$$
M_a = (11.581 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.581 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.502 |
| 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) |
| 2026-05-12 00:00 |
09:39:43.84 |
+39:54:06.6 |
HIP 47488 |
15.98 |
| 2026-05-12 12:00 |
09:39:50.12 |
+39:51:41.1 |
HIP 47491 |
16.57 |
| 2026-05-13 00:00 |
09:39:56.57 |
+39:49:15.4 |
HIP 47491 |
13.99 |
| 2026-05-13 12:00 |
09:40:03.18 |
+39:46:49.3 |
HIP 47491 |
11.46 |
| 2026-05-14 00:00 |
09:40:09.96 |
+39:44:23.0 |
HIP 47491 |
9.01 |
| 2026-05-14 12:00 |
09:40:16.90 |
+39:41:56.5 |
HIP 47491 |
6.78 |
| 2026-05-15 00:00 |
09:40:24.01 |
+39:39:29.6 |
HIP 47491 |
5.10 |
| 2026-05-15 12:00 |
09:40:31.28 |
+39:37:02.6 |
HIP 47491 |
4.63 |
| 2026-05-16 00:00 |
09:40:38.71 |
+39:34:35.3 |
HIP 47491 |
5.72 |
| 2026-05-16 12:00 |
09:40:46.30 |
+39:32:07.8 |
HIP 47491 |
7.75 |
| 2026-05-17 00:00 |
09:40:54.05 |
+39:29:40.0 |
HIP 47491 |
10.20 |
| 2026-05-17 12:00 |
09:41:01.96 |
+39:27:12.1 |
HIP 47491 |
12.84 |
| 2026-05-18 00:00 |
09:41:10.02 |
+39:24:43.9 |
HIP 47581 |
14.78 |
| 2026-05-18 12:00 |
09:41:18.24 |
+39:22:15.5 |
HIP 47581 |
11.97 |
| 2026-05-19 00:00 |
09:41:26.61 |
+39:19:47.0 |
HIP 47581 |
9.21 |
| 2026-05-19 12:00 |
09:41:35.14 |
+39:17:18.2 |
HIP 47581 |
6.60 |
| 2026-05-20 00:00 |
09:41:43.82 |
+39:14:49.3 |
HIP 47581 |
4.45 |
| 2026-05-20 12:00 |
09:41:52.65 |
+39:12:20.3 |
HIP 47581 |
3.71 |
| 2026-05-21 00:00 |
09:42:01.63 |
+39:09:51.0 |
HIP 47581 |
5.08 |
| 2026-05-21 12:00 |
09:42:10.76 |
+39:07:21.7 |
HIP 47581 |
7.52 |
| 2026-05-22 00:00 |
09:42:20.03 |
+39:04:52.1 |
HIP 47581 |
10.29 |
| 2026-05-22 12:00 |
09:42:29.45 |
+39:02:22.5 |
HIP 47581 |
13.21 |
| 2026-05-23 00:00 |
09:42:39.02 |
+38:59:52.7 |
HIP 47527 |
15.26 |
| 2026-05-23 12:00 |
09:42:48.72 |
+38:57:22.7 |
HIP 47527 |
16.89 |
| 2026-05-24 00:00 |
09:42:58.57 |
+38:54:52.7 |
HIP 47527 |
18.93 |
| 2026-05-24 12:00 |
09:43:08.56 |
+38:52:22.5 |
HIP 47527 |
21.27 |
| 2026-05-25 00:00 |
09:43:18.69 |
+38:49:52.3 |
HIP 47527 |
23.83 |
| 2026-05-25 12:00 |
09:43:28.96 |
+38:47:21.9 |
HIP 47764 |
21.94 |
| 2026-05-26 00:00 |
09:43:39.36 |
+38:44:51.4 |
HIP 47764 |
18.82 |
| 2026-05-26 12:00 |
09:43:49.90 |
+38:42:20.9 |
HIP 47764 |
15.74 |
| 2026-05-27 00:00 |
09:44:00.58 |
+38:39:50.2 |
HIP 47764 |
12.73 |
| 2026-05-27 12:00 |
09:44:11.38 |
+38:37:19.5 |
HIP 47764 |
9.88 |
| 2026-05-28 00:00 |
09:44:22.32 |
+38:34:48.7 |
HIP 47764 |
7.39 |
| 2026-05-28 12:00 |
09:44:33.39 |
+38:32:17.9 |
HIP 47764 |
5.80 |
| 2026-05-29 00:00 |
09:44:44.59 |
+38:29:47.0 |
HIP 47764 |
5.92 |
| 2026-05-29 12:00 |
09:44:55.92 |
+38:27:16.0 |
HIP 47764 |
7.69 |
| 2026-05-30 00:00 |
09:45:07.38 |
+38:24:45.0 |
HIP 47764 |
10.30 |
| 2026-05-30 12:00 |
09:45:18.96 |
+38:22:13.9 |
HIP 47764 |
13.29 |
| 2026-05-31 00:00 |
09:45:30.67 |
+38:19:42.7 |
HIP 47764 |
16.46 |
| 2026-05-31 12:00 |
09:45:42.51 |
+38:17:11.6 |
HIP 47764 |
19.73 |
| 2026-06-01 00:00 |
09:45:54.46 |
+38:14:40.4 |
HIP 47764 |
23.07 |
| 2026-06-01 12:00 |
09:46:06.54 |
+38:12:09.1 |
HIP 47803 |
25.10 |
| 2026-06-02 00:00 |
09:46:18.74 |
+38:09:37.8 |
HIP 47803 |
25.05 |