メタデータ
| 項目 |
値 |
| Designation |
C/2010 L5 (WISE) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-04-23T03:55:12.714240Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:44Z |
| Obs used |
34 |
| NEO |
Yes |
| M1 |
18.900 |
| K1 |
4.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-07-02.0000000 |
| e |
0.90421394 |
| q (au) |
0.791169 |
| a (au) |
8.259755 |
| i (deg) |
147.048942 |
| Ω (om, deg) |
206.472272 |
| ω (w, deg) |
214.763588 |
| M (ma, deg) |
2.899591 |
等級
散乱 + 全体線形
$$
M_a = (17.711 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.711 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.597 |
| 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) |
| 2026-03-26 00:00 |
11:54:30.74 |
+25:45:30.8 |
HIP 58102 |
6.54 |
| 2026-03-26 12:00 |
11:54:21.42 |
+25:46:20.6 |
HIP 58102 |
8.67 |
| 2026-03-27 00:00 |
11:54:12.11 |
+25:47:09.9 |
HIP 58102 |
10.85 |
| 2026-03-27 12:00 |
11:54:02.81 |
+25:47:58.6 |
HIP 58102 |
13.05 |
| 2026-03-28 00:00 |
11:53:53.52 |
+25:48:46.8 |
HIP 58102 |
15.26 |
| 2026-03-28 12:00 |
11:53:44.24 |
+25:49:34.4 |
HIP 58102 |
17.47 |
| 2026-03-29 00:00 |
11:53:34.98 |
+25:50:21.3 |
HIP 58102 |
19.68 |
| 2026-03-29 12:00 |
11:53:25.72 |
+25:51:07.7 |
HIP 57863 |
19.86 |
| 2026-03-30 00:00 |
11:53:16.49 |
+25:51:53.5 |
HIP 57863 |
18.29 |
| 2026-03-30 12:00 |
11:53:07.27 |
+25:52:38.7 |
HIP 57863 |
16.87 |
| 2026-03-31 00:00 |
11:52:58.06 |
+25:53:23.4 |
HIP 57863 |
15.63 |
| 2026-03-31 12:00 |
11:52:48.87 |
+25:54:07.4 |
HIP 57863 |
14.61 |
| 2026-04-01 00:00 |
11:52:39.70 |
+25:54:50.8 |
HIP 57863 |
13.85 |
| 2026-04-01 12:00 |
11:52:30.54 |
+25:55:33.6 |
HIP 57863 |
13.42 |
| 2026-04-02 00:00 |
11:52:21.41 |
+25:56:15.9 |
HIP 57863 |
13.31 |
| 2026-04-02 12:00 |
11:52:12.29 |
+25:56:57.5 |
HIP 57863 |
13.56 |
| 2026-04-03 00:00 |
11:52:03.20 |
+25:57:38.5 |
HIP 57863 |
14.12 |
| 2026-04-03 12:00 |
11:51:54.12 |
+25:58:18.9 |
HIP 57863 |
14.96 |
| 2026-04-04 00:00 |
11:51:45.07 |
+25:58:58.7 |
HIP 57863 |
16.04 |
| 2026-04-04 12:00 |
11:51:36.04 |
+25:59:37.9 |
HIP 57863 |
17.31 |
| 2026-04-05 00:00 |
11:51:27.04 |
+26:00:16.5 |
HIP 57863 |
18.72 |
| 2026-04-05 12:00 |
11:51:18.06 |
+26:00:54.4 |
HIP 57903 |
20.22 |
| 2026-04-06 00:00 |
11:51:09.10 |
+26:01:31.8 |
HIP 57903 |
21.71 |
| 2026-04-06 12:00 |
11:51:00.17 |
+26:02:08.5 |
HIP 57903 |
23.30 |
| 2026-04-07 00:00 |
11:50:51.26 |
+26:02:44.6 |
HIP 57903 |
24.96 |
| 2026-04-07 12:00 |
11:50:42.38 |
+26:03:20.1 |
HIP 57903 |
26.67 |
| 2026-04-08 00:00 |
11:50:33.53 |
+26:03:54.9 |
HIP 57903 |
28.44 |
| 2026-04-08 12:00 |
11:50:24.71 |
+26:04:29.1 |
HIP 57903 |
30.23 |
| 2026-04-09 00:00 |
11:50:15.92 |
+26:05:02.7 |
HIP 57590 |
30.97 |
| 2026-04-09 12:00 |
11:50:07.16 |
+26:05:35.7 |
HIP 57590 |
29.76 |
| 2026-04-10 00:00 |
11:49:58.42 |
+26:06:08.0 |
HIP 57590 |
28.63 |
| 2026-04-10 12:00 |
11:49:49.72 |
+26:06:39.7 |
HIP 57590 |
27.61 |
| 2026-04-11 00:00 |
11:49:41.06 |
+26:07:10.8 |
HIP 57590 |
26.70 |
| 2026-04-11 12:00 |
11:49:32.42 |
+26:07:41.2 |
HIP 57590 |
25.91 |
| 2026-04-12 00:00 |
11:49:23.82 |
+26:08:11.0 |
HIP 57590 |
25.25 |
| 2026-04-12 12:00 |
11:49:15.25 |
+26:08:40.2 |
HIP 57590 |
24.73 |
| 2026-04-13 00:00 |
11:49:06.72 |
+26:09:08.7 |
HIP 57590 |
24.35 |
| 2026-04-13 12:00 |
11:48:58.23 |
+26:09:36.6 |
HIP 57590 |
24.13 |
| 2026-04-14 00:00 |
11:48:49.77 |
+26:10:03.8 |
HIP 57590 |
24.05 |
| 2026-04-14 12:00 |
11:48:41.34 |
+26:10:30.4 |
HIP 57590 |
24.12 |
| 2026-04-15 00:00 |
11:48:32.96 |
+26:10:56.4 |
HIP 57590 |
24.34 |
| 2026-04-15 12:00 |
11:48:24.62 |
+26:11:21.7 |
HIP 57590 |
24.70 |
| 2026-04-16 00:00 |
11:48:16.31 |
+26:11:46.4 |
HIP 57590 |
25.19 |