メタデータ
| 項目 |
値 |
| Designation |
C/2000 U5 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2000-03-13T14:08:55.055040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:08Z |
| Obs used |
288 |
| NEO |
- |
| M1 |
7.700 |
| K1 |
10.250 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2000-12-17.0000000 |
| e |
1.00537571 |
| q (au) |
3.486197 |
| a (au) |
-648.509659 |
| i (deg) |
93.652917 |
| Ω (om, deg) |
65.294538 |
| ω (w, deg) |
299.022540 |
| M (ma, deg) |
0.016616 |
等級
散乱 + 全体線形
$$
M_a = (14.464 + 2.318\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.464 |
| n |
2.318 |
| gf |
1.000 |
| gb |
-0.824 |
| k |
0.800 |
| 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 |
18:55:45.71 |
+68:50:57.5 |
HIP 93095 |
23.73 |
| 2026-06-01 12:00 |
18:55:39.69 |
+68:51:16.0 |
HIP 93095 |
24.27 |
| 2026-06-02 00:00 |
18:55:33.64 |
+68:51:34.3 |
HIP 93095 |
24.82 |
| 2026-06-02 12:00 |
18:55:27.56 |
+68:51:52.2 |
HIP 93095 |
25.36 |
| 2026-06-03 00:00 |
18:55:21.44 |
+68:52:09.9 |
HIP 93095 |
25.90 |
| 2026-06-03 12:00 |
18:55:15.30 |
+68:52:27.3 |
HIP 93095 |
26.45 |
| 2026-06-04 00:00 |
18:55:09.12 |
+68:52:44.4 |
HIP 93095 |
27.00 |
| 2026-06-04 12:00 |
18:55:02.91 |
+68:53:01.2 |
HIP 93095 |
27.55 |
| 2026-06-05 00:00 |
18:54:56.67 |
+68:53:17.7 |
HIP 93095 |
28.10 |
| 2026-06-05 12:00 |
18:54:50.40 |
+68:53:34.0 |
HIP 93095 |
28.65 |
| 2026-06-06 00:00 |
18:54:44.10 |
+68:53:49.9 |
HIP 93095 |
29.20 |
| 2026-06-06 12:00 |
18:54:37.77 |
+68:54:05.6 |
HIP 93095 |
29.75 |
| 2026-06-07 00:00 |
18:54:31.41 |
+68:54:20.9 |
HIP 93095 |
30.30 |
| 2026-06-07 12:00 |
18:54:25.02 |
+68:54:36.0 |
HIP 92306 |
30.41 |
| 2026-06-08 00:00 |
18:54:18.61 |
+68:54:50.7 |
HIP 92306 |
29.85 |
| 2026-06-08 12:00 |
18:54:12.16 |
+68:55:05.2 |
HIP 92306 |
29.29 |
| 2026-06-09 00:00 |
18:54:05.69 |
+68:55:19.4 |
HIP 92306 |
28.73 |
| 2026-06-09 12:00 |
18:53:59.20 |
+68:55:33.2 |
HIP 92306 |
28.17 |
| 2026-06-10 00:00 |
18:53:52.67 |
+68:55:46.8 |
HIP 92306 |
27.61 |
| 2026-06-10 12:00 |
18:53:46.13 |
+68:56:00.0 |
HIP 92306 |
27.05 |
| 2026-06-11 00:00 |
18:53:39.55 |
+68:56:13.0 |
HIP 92306 |
26.49 |
| 2026-06-11 12:00 |
18:53:32.95 |
+68:56:25.6 |
HIP 92306 |
25.93 |
| 2026-06-12 00:00 |
18:53:26.33 |
+68:56:37.9 |
HIP 92306 |
25.37 |
| 2026-06-12 12:00 |
18:53:19.69 |
+68:56:50.0 |
HIP 92306 |
24.81 |
| 2026-06-13 00:00 |
18:53:13.02 |
+68:57:01.7 |
HIP 92306 |
24.25 |
| 2026-06-13 12:00 |
18:53:06.33 |
+68:57:13.1 |
HIP 92306 |
23.70 |
| 2026-06-14 00:00 |
18:52:59.62 |
+68:57:24.1 |
HIP 92306 |
23.14 |
| 2026-06-14 12:00 |
18:52:52.88 |
+68:57:34.9 |
HIP 92306 |
22.59 |
| 2026-06-15 00:00 |
18:52:46.13 |
+68:57:45.4 |
HIP 92306 |
22.04 |
| 2026-06-15 12:00 |
18:52:39.35 |
+68:57:55.5 |
HIP 92306 |
21.48 |
| 2026-06-16 00:00 |
18:52:32.56 |
+68:58:05.3 |
HIP 92306 |
20.93 |
| 2026-06-16 12:00 |
18:52:25.75 |
+68:58:14.8 |
HIP 92306 |
20.39 |
| 2026-06-17 00:00 |
18:52:18.91 |
+68:58:24.0 |
HIP 92306 |
19.84 |
| 2026-06-17 12:00 |
18:52:12.07 |
+68:58:32.8 |
HIP 92306 |
19.30 |
| 2026-06-18 00:00 |
18:52:05.20 |
+68:58:41.3 |
HIP 92306 |
18.76 |
| 2026-06-18 12:00 |
18:51:58.32 |
+68:58:49.5 |
HIP 92306 |
18.22 |
| 2026-06-19 00:00 |
18:51:51.42 |
+68:58:57.4 |
HIP 92306 |
17.68 |
| 2026-06-19 12:00 |
18:51:44.50 |
+68:59:05.0 |
HIP 92306 |
17.15 |
| 2026-06-20 00:00 |
18:51:37.57 |
+68:59:12.2 |
HIP 92306 |
16.62 |
| 2026-06-20 12:00 |
18:51:30.63 |
+68:59:19.1 |
HIP 92306 |
16.10 |
| 2026-06-21 00:00 |
18:51:23.67 |
+68:59:25.7 |
HIP 92306 |
15.58 |
| 2026-06-21 12:00 |
18:51:16.70 |
+68:59:32.0 |
HIP 92306 |
15.07 |
| 2026-06-22 00:00 |
18:51:09.72 |
+68:59:37.9 |
HIP 92306 |
14.56 |