メタデータ
| 項目 |
値 |
| Designation |
C/2005 EL173 (LONEOS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-03-05T21:31:08.184000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:47Z |
| Obs used |
314 |
| NEO |
- |
| M1 |
7.700 |
| K1 |
9.250 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2006-07-01.0000000 |
| e |
1.00318367 |
| q (au) |
3.886323 |
| a (au) |
-1220.704650 |
| i (deg) |
130.676676 |
| Ω (om, deg) |
344.789896 |
| ω (w, deg) |
261.492565 |
| M (ma, deg) |
-0.005729 |
等級
散乱 + 全体線形
$$
M_a = (5.147 + 4.894\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
5.147 |
| n |
4.894 |
| gf |
0.860 |
| gb |
-0.523 |
| k |
0.981 |
| δ90 |
1.001 |
| 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 |
20:32:02.81 |
+14:07:09.3 |
HIP 101305 |
9.31 |
| 2026-06-01 12:00 |
20:32:00.77 |
+14:07:26.7 |
HIP 101305 |
9.02 |
| 2026-06-02 00:00 |
20:31:58.70 |
+14:07:43.9 |
HIP 101305 |
8.77 |
| 2026-06-02 12:00 |
20:31:56.61 |
+14:08:00.9 |
HIP 101305 |
8.54 |
| 2026-06-03 00:00 |
20:31:54.50 |
+14:08:17.7 |
HIP 101305 |
8.36 |
| 2026-06-03 12:00 |
20:31:52.37 |
+14:08:34.3 |
HIP 101305 |
8.22 |
| 2026-06-04 00:00 |
20:31:50.21 |
+14:08:50.8 |
HIP 101305 |
8.12 |
| 2026-06-04 12:00 |
20:31:48.03 |
+14:09:07.0 |
HIP 101305 |
8.07 |
| 2026-06-05 00:00 |
20:31:45.83 |
+14:09:23.0 |
HIP 101305 |
8.07 |
| 2026-06-05 12:00 |
20:31:43.61 |
+14:09:38.8 |
HIP 101305 |
8.12 |
| 2026-06-06 00:00 |
20:31:41.36 |
+14:09:54.4 |
HIP 101305 |
8.22 |
| 2026-06-06 12:00 |
20:31:39.10 |
+14:10:09.9 |
HIP 101305 |
8.37 |
| 2026-06-07 00:00 |
20:31:36.81 |
+14:10:25.1 |
HIP 101305 |
8.56 |
| 2026-06-07 12:00 |
20:31:34.50 |
+14:10:40.1 |
HIP 101305 |
8.80 |
| 2026-06-08 00:00 |
20:31:32.17 |
+14:10:54.9 |
HIP 101305 |
9.08 |
| 2026-06-08 12:00 |
20:31:29.82 |
+14:11:09.5 |
HIP 101305 |
9.40 |
| 2026-06-09 00:00 |
20:31:27.45 |
+14:11:23.9 |
HIP 101305 |
9.75 |
| 2026-06-09 12:00 |
20:31:25.05 |
+14:11:38.1 |
HIP 101305 |
10.14 |
| 2026-06-10 00:00 |
20:31:22.64 |
+14:11:52.1 |
HIP 101305 |
10.55 |
| 2026-06-10 12:00 |
20:31:20.21 |
+14:12:05.8 |
HIP 101305 |
10.99 |
| 2026-06-11 00:00 |
20:31:17.75 |
+14:12:19.4 |
HIP 101305 |
11.46 |
| 2026-06-11 12:00 |
20:31:15.28 |
+14:12:32.7 |
HIP 101305 |
11.94 |
| 2026-06-12 00:00 |
20:31:12.78 |
+14:12:45.8 |
HIP 101305 |
12.45 |
| 2026-06-12 12:00 |
20:31:10.27 |
+14:12:58.7 |
HIP 101305 |
12.97 |
| 2026-06-13 00:00 |
20:31:07.73 |
+14:13:11.4 |
HIP 101305 |
13.51 |
| 2026-06-13 12:00 |
20:31:05.18 |
+14:13:23.9 |
HIP 101305 |
14.06 |
| 2026-06-14 00:00 |
20:31:02.61 |
+14:13:36.2 |
HIP 101305 |
14.63 |
| 2026-06-14 12:00 |
20:31:00.02 |
+14:13:48.2 |
HIP 101305 |
15.21 |
| 2026-06-15 00:00 |
20:30:57.40 |
+14:14:00.0 |
HIP 101305 |
15.80 |
| 2026-06-15 12:00 |
20:30:54.77 |
+14:14:11.6 |
HIP 101305 |
16.41 |
| 2026-06-16 00:00 |
20:30:52.13 |
+14:14:23.0 |
HIP 101305 |
17.02 |
| 2026-06-16 12:00 |
20:30:49.46 |
+14:14:34.1 |
HIP 101305 |
17.64 |
| 2026-06-17 00:00 |
20:30:46.77 |
+14:14:45.0 |
HIP 101305 |
18.27 |
| 2026-06-17 12:00 |
20:30:44.07 |
+14:14:55.7 |
HIP 101305 |
18.90 |
| 2026-06-18 00:00 |
20:30:41.35 |
+14:15:06.2 |
HIP 101305 |
19.55 |
| 2026-06-18 12:00 |
20:30:38.61 |
+14:15:16.5 |
HIP 101305 |
20.20 |
| 2026-06-19 00:00 |
20:30:35.85 |
+14:15:26.5 |
HIP 101305 |
20.86 |
| 2026-06-19 12:00 |
20:30:33.08 |
+14:15:36.3 |
HIP 101305 |
21.52 |
| 2026-06-20 00:00 |
20:30:30.29 |
+14:15:45.8 |
HIP 101305 |
22.19 |
| 2026-06-20 12:00 |
20:30:27.48 |
+14:15:55.2 |
HIP 101305 |
22.86 |
| 2026-06-21 00:00 |
20:30:24.66 |
+14:16:04.3 |
HIP 101305 |
23.55 |
| 2026-06-21 12:00 |
20:30:21.82 |
+14:16:13.1 |
HIP 101305 |
24.23 |
| 2026-06-22 00:00 |
20:30:18.96 |
+14:16:21.8 |
HIP 101305 |
24.92 |