メタデータ
| 項目 |
値 |
| Designation |
C/2010 G3 (WISE) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-04-11T02:03:46.451520Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:12:22Z |
| Obs used |
271 |
| NEO |
- |
| M1 |
5.100 |
| K1 |
14.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-07-15.0000000 |
| e |
0.99809183 |
| q (au) |
4.907655 |
| a (au) |
2571.923503 |
| i (deg) |
108.267609 |
| Ω (om, deg) |
313.718341 |
| ω (w, deg) |
75.199953 |
| M (ma, deg) |
0.000717 |
等級
散乱 + 全体線形
$$
M_a = (7.154 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
7.154 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.708 |
| 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) |
| 2026-05-12 00:00 |
07:53:12.11 |
-06:45:43.4 |
HIP 38428 |
13.26 |
| 2026-05-12 12:00 |
07:53:13.41 |
-06:45:28.6 |
HIP 38428 |
13.62 |
| 2026-05-13 00:00 |
07:53:14.75 |
-06:45:13.9 |
HIP 38428 |
14.00 |
| 2026-05-13 12:00 |
07:53:16.11 |
-06:44:59.3 |
HIP 38428 |
14.38 |
| 2026-05-14 00:00 |
07:53:17.50 |
-06:44:45.0 |
HIP 38428 |
14.77 |
| 2026-05-14 12:00 |
07:53:18.91 |
-06:44:30.8 |
HIP 38428 |
15.17 |
| 2026-05-15 00:00 |
07:53:20.35 |
-06:44:16.8 |
HIP 38428 |
15.57 |
| 2026-05-15 12:00 |
07:53:21.82 |
-06:44:02.9 |
HIP 38428 |
15.99 |
| 2026-05-16 00:00 |
07:53:23.31 |
-06:43:49.3 |
HIP 38428 |
16.40 |
| 2026-05-16 12:00 |
07:53:24.84 |
-06:43:35.8 |
HIP 38428 |
16.83 |
| 2026-05-17 00:00 |
07:53:26.38 |
-06:43:22.5 |
HIP 38428 |
17.26 |
| 2026-05-17 12:00 |
07:53:27.96 |
-06:43:09.4 |
HIP 38428 |
17.70 |
| 2026-05-18 00:00 |
07:53:29.56 |
-06:42:56.5 |
HIP 38428 |
18.14 |
| 2026-05-18 12:00 |
07:53:31.18 |
-06:42:43.8 |
HIP 38428 |
18.59 |
| 2026-05-19 00:00 |
07:53:32.83 |
-06:42:31.2 |
HIP 38428 |
19.04 |
| 2026-05-19 12:00 |
07:53:34.51 |
-06:42:18.9 |
HIP 38428 |
19.50 |
| 2026-05-20 00:00 |
07:53:36.21 |
-06:42:06.7 |
HIP 38428 |
19.97 |
| 2026-05-20 12:00 |
07:53:37.94 |
-06:41:54.7 |
HIP 38428 |
20.43 |
| 2026-05-21 00:00 |
07:53:39.69 |
-06:41:42.9 |
HIP 38428 |
20.91 |
| 2026-05-21 12:00 |
07:53:41.47 |
-06:41:31.3 |
HIP 38428 |
21.39 |
| 2026-05-22 00:00 |
07:53:43.27 |
-06:41:19.9 |
HIP 38428 |
21.87 |
| 2026-05-22 12:00 |
07:53:45.09 |
-06:41:08.7 |
HIP 38428 |
22.36 |
| 2026-05-23 00:00 |
07:53:46.94 |
-06:40:57.7 |
HIP 38428 |
22.86 |
| 2026-05-23 12:00 |
07:53:48.81 |
-06:40:46.8 |
HIP 38428 |
23.35 |
| 2026-05-24 00:00 |
07:53:50.71 |
-06:40:36.2 |
HIP 38428 |
23.86 |
| 2026-05-24 12:00 |
07:53:52.63 |
-06:40:25.8 |
HIP 38428 |
24.37 |
| 2026-05-25 00:00 |
07:53:54.58 |
-06:40:15.5 |
HIP 38428 |
24.88 |
| 2026-05-25 12:00 |
07:53:56.54 |
-06:40:05.5 |
HIP 38428 |
25.39 |
| 2026-05-26 00:00 |
07:53:58.53 |
-06:39:55.6 |
HIP 38428 |
25.91 |
| 2026-05-26 12:00 |
07:54:00.55 |
-06:39:46.0 |
HIP 38428 |
26.44 |
| 2026-05-27 00:00 |
07:54:02.58 |
-06:39:36.5 |
HIP 38428 |
26.97 |
| 2026-05-27 12:00 |
07:54:04.64 |
-06:39:27.2 |
HIP 38428 |
27.50 |
| 2026-05-28 00:00 |
07:54:06.72 |
-06:39:18.2 |
HIP 38743 |
27.78 |
| 2026-05-28 12:00 |
07:54:08.83 |
-06:39:09.3 |
HIP 38743 |
27.23 |
| 2026-05-29 00:00 |
07:54:10.95 |
-06:39:00.7 |
HIP 38743 |
26.69 |
| 2026-05-29 12:00 |
07:54:13.10 |
-06:38:52.2 |
HIP 38743 |
26.14 |
| 2026-05-30 00:00 |
07:54:15.27 |
-06:38:44.0 |
HIP 38743 |
25.58 |
| 2026-05-30 12:00 |
07:54:17.46 |
-06:38:35.9 |
HIP 38743 |
25.02 |
| 2026-05-31 00:00 |
07:54:19.67 |
-06:38:28.1 |
HIP 38743 |
24.46 |
| 2026-05-31 12:00 |
07:54:21.90 |
-06:38:20.5 |
HIP 38743 |
23.89 |
| 2026-06-01 00:00 |
07:54:24.15 |
-06:38:13.0 |
HIP 38743 |
23.32 |
| 2026-06-01 12:00 |
07:54:26.43 |
-06:38:05.8 |
HIP 38743 |
22.74 |
| 2026-06-02 00:00 |
07:54:28.72 |
-06:37:58.8 |
HIP 38743 |
22.16 |