メタデータ
| 項目 |
値 |
| Designation |
C/2010 D3 (WISE) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-09-03T22:06:02.718720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:40Z |
| Obs used |
87 |
| NEO |
- |
| M1 |
12.100 |
| K1 |
6.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-12-12.0000000 |
| e |
0.99962872 |
| q (au) |
4.247542 |
| a (au) |
11440.328800 |
| i (deg) |
76.394820 |
| Ω (om, deg) |
255.234609 |
| ω (w, deg) |
304.642621 |
| M (ma, deg) |
0.000080 |
等級
散乱 + 全体線形
$$
M_a = (13.647 + 2.928\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.647 |
| n |
2.928 |
| gf |
0.999 |
| gb |
-0.708 |
| k |
0.800 |
| δ90 |
9.999 |
| 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) |
| 2026-07-29 00:00 |
19:10:05.98 |
+55:11:21.3 |
HIP 94000 |
17.29 |
| 2026-07-29 12:00 |
19:10:00.28 |
+55:11:05.5 |
HIP 94000 |
16.73 |
| 2026-07-30 00:00 |
19:09:54.60 |
+55:10:49.2 |
HIP 94000 |
16.19 |
| 2026-07-30 12:00 |
19:09:48.94 |
+55:10:32.5 |
HIP 94000 |
15.69 |
| 2026-07-31 00:00 |
19:09:43.31 |
+55:10:15.4 |
HIP 94000 |
15.23 |
| 2026-07-31 12:00 |
19:09:37.69 |
+55:09:57.9 |
HIP 94000 |
14.81 |
| 2026-08-01 00:00 |
19:09:32.09 |
+55:09:39.9 |
HIP 94000 |
14.44 |
| 2026-08-01 12:00 |
19:09:26.52 |
+55:09:21.4 |
HIP 94000 |
14.11 |
| 2026-08-02 00:00 |
19:09:20.97 |
+55:09:02.6 |
HIP 94000 |
13.84 |
| 2026-08-02 12:00 |
19:09:15.45 |
+55:08:43.3 |
HIP 94000 |
13.62 |
| 2026-08-03 00:00 |
19:09:09.95 |
+55:08:23.6 |
HIP 94000 |
13.46 |
| 2026-08-03 12:00 |
19:09:04.47 |
+55:08:03.5 |
HIP 94000 |
13.36 |
| 2026-08-04 00:00 |
19:08:59.02 |
+55:07:42.9 |
HIP 94000 |
13.32 |
| 2026-08-04 12:00 |
19:08:53.59 |
+55:07:22.0 |
HIP 94000 |
13.34 |
| 2026-08-05 00:00 |
19:08:48.19 |
+55:07:00.6 |
HIP 94000 |
13.43 |
| 2026-08-05 12:00 |
19:08:42.81 |
+55:06:38.7 |
HIP 94000 |
13.58 |
| 2026-08-06 00:00 |
19:08:37.46 |
+55:06:16.5 |
HIP 94000 |
13.78 |
| 2026-08-06 12:00 |
19:08:32.14 |
+55:05:53.9 |
HIP 94000 |
14.04 |
| 2026-08-07 00:00 |
19:08:26.84 |
+55:05:30.8 |
HIP 94000 |
14.35 |
| 2026-08-07 12:00 |
19:08:21.58 |
+55:05:07.3 |
HIP 94000 |
14.71 |
| 2026-08-08 00:00 |
19:08:16.34 |
+55:04:43.5 |
HIP 94000 |
15.12 |
| 2026-08-08 12:00 |
19:08:11.13 |
+55:04:19.2 |
HIP 94000 |
15.57 |
| 2026-08-09 00:00 |
19:08:05.95 |
+55:03:54.5 |
HIP 94000 |
16.05 |
| 2026-08-09 12:00 |
19:08:00.80 |
+55:03:29.4 |
HIP 94000 |
16.58 |
| 2026-08-10 00:00 |
19:07:55.68 |
+55:03:03.9 |
HIP 94000 |
17.13 |
| 2026-08-10 12:00 |
19:07:50.59 |
+55:02:38.0 |
HIP 94000 |
17.71 |
| 2026-08-11 00:00 |
19:07:45.53 |
+55:02:11.7 |
HIP 94000 |
18.32 |
| 2026-08-11 12:00 |
19:07:40.51 |
+55:01:45.1 |
HIP 94000 |
18.95 |
| 2026-08-12 00:00 |
19:07:35.51 |
+55:01:18.0 |
HIP 94000 |
19.60 |
| 2026-08-12 12:00 |
19:07:30.55 |
+55:00:50.5 |
HIP 94000 |
20.27 |
| 2026-08-13 00:00 |
19:07:25.62 |
+55:00:22.7 |
HIP 94000 |
20.96 |
| 2026-08-13 12:00 |
19:07:20.73 |
+54:59:54.5 |
HIP 94000 |
21.66 |
| 2026-08-14 00:00 |
19:07:15.87 |
+54:59:25.9 |
HIP 94000 |
22.37 |
| 2026-08-14 12:00 |
19:07:11.04 |
+54:58:56.9 |
HIP 94000 |
23.10 |
| 2026-08-15 00:00 |
19:07:06.25 |
+54:58:27.5 |
HIP 94000 |
23.84 |
| 2026-08-15 12:00 |
19:07:01.49 |
+54:57:57.8 |
HIP 94000 |
24.59 |
| 2026-08-16 00:00 |
19:06:56.77 |
+54:57:27.7 |
HIP 94000 |
25.35 |
| 2026-08-16 12:00 |
19:06:52.08 |
+54:56:57.2 |
HIP 94000 |
26.11 |
| 2026-08-17 00:00 |
19:06:47.44 |
+54:56:26.4 |
HIP 94000 |
26.89 |
| 2026-08-17 12:00 |
19:06:42.82 |
+54:55:55.2 |
HIP 94000 |
27.67 |
| 2026-08-18 00:00 |
19:06:38.25 |
+54:55:23.7 |
HIP 94000 |
28.45 |
| 2026-08-18 12:00 |
19:06:33.71 |
+54:54:51.8 |
HIP 94000 |
29.24 |
| 2026-08-19 00:00 |
19:06:29.21 |
+54:54:19.6 |
HIP 94000 |
30.04 |