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) |
| 2026-03-26 00:00 |
07:53:24.71 |
-07:18:17.5 |
HIP 38366 |
34.03 |
| 2026-03-26 12:00 |
07:53:23.10 |
-07:17:53.5 |
HIP 38366 |
33.48 |
| 2026-03-27 00:00 |
07:53:21.52 |
-07:17:29.5 |
HIP 38366 |
32.93 |
| 2026-03-27 12:00 |
07:53:19.98 |
-07:17:05.5 |
HIP 38366 |
32.39 |
| 2026-03-28 00:00 |
07:53:18.46 |
-07:16:41.5 |
HIP 38366 |
31.85 |
| 2026-03-28 12:00 |
07:53:16.98 |
-07:16:17.6 |
HIP 38366 |
31.32 |
| 2026-03-29 00:00 |
07:53:15.53 |
-07:15:53.6 |
HIP 38366 |
30.80 |
| 2026-03-29 12:00 |
07:53:14.11 |
-07:15:29.7 |
HIP 38366 |
30.29 |
| 2026-03-30 00:00 |
07:53:12.72 |
-07:15:05.8 |
HIP 38366 |
29.79 |
| 2026-03-30 12:00 |
07:53:11.36 |
-07:14:41.9 |
HIP 38366 |
29.29 |
| 2026-03-31 00:00 |
07:53:10.04 |
-07:14:18.1 |
HIP 38366 |
28.80 |
| 2026-03-31 12:00 |
07:53:08.74 |
-07:13:54.3 |
HIP 38366 |
28.32 |
| 2026-04-01 00:00 |
07:53:07.48 |
-07:13:30.5 |
HIP 38366 |
27.84 |
| 2026-04-01 12:00 |
07:53:06.25 |
-07:13:06.7 |
HIP 38366 |
27.38 |
| 2026-04-02 00:00 |
07:53:05.06 |
-07:12:43.0 |
HIP 38366 |
26.92 |
| 2026-04-02 12:00 |
07:53:03.89 |
-07:12:19.3 |
HIP 38428 |
26.44 |
| 2026-04-03 00:00 |
07:53:02.76 |
-07:11:55.6 |
HIP 38428 |
25.96 |
| 2026-04-03 12:00 |
07:53:01.66 |
-07:11:32.0 |
HIP 38428 |
25.49 |
| 2026-04-04 00:00 |
07:53:00.59 |
-07:11:08.4 |
HIP 38428 |
25.03 |
| 2026-04-04 12:00 |
07:52:59.55 |
-07:10:44.9 |
HIP 38428 |
24.56 |
| 2026-04-05 00:00 |
07:52:58.55 |
-07:10:21.4 |
HIP 38428 |
24.11 |
| 2026-04-05 12:00 |
07:52:57.58 |
-07:09:58.0 |
HIP 38428 |
23.65 |
| 2026-04-06 00:00 |
07:52:56.64 |
-07:09:34.6 |
HIP 38428 |
23.20 |
| 2026-04-06 12:00 |
07:52:55.73 |
-07:09:11.2 |
HIP 38428 |
22.75 |
| 2026-04-07 00:00 |
07:52:54.86 |
-07:08:48.0 |
HIP 38428 |
22.31 |
| 2026-04-07 12:00 |
07:52:54.01 |
-07:08:24.7 |
HIP 38428 |
21.87 |
| 2026-04-08 00:00 |
07:52:53.20 |
-07:08:01.6 |
HIP 38428 |
21.44 |
| 2026-04-08 12:00 |
07:52:52.42 |
-07:07:38.4 |
HIP 38428 |
21.01 |
| 2026-04-09 00:00 |
07:52:51.68 |
-07:07:15.4 |
HIP 38428 |
20.58 |
| 2026-04-09 12:00 |
07:52:50.96 |
-07:06:52.4 |
HIP 38428 |
20.16 |
| 2026-04-10 00:00 |
07:52:50.28 |
-07:06:29.5 |
HIP 38428 |
19.74 |
| 2026-04-10 12:00 |
07:52:49.63 |
-07:06:06.6 |
HIP 38428 |
19.33 |
| 2026-04-11 00:00 |
07:52:49.01 |
-07:05:43.8 |
HIP 38428 |
18.92 |
| 2026-04-11 12:00 |
07:52:48.43 |
-07:05:21.1 |
HIP 38428 |
18.52 |
| 2026-04-12 00:00 |
07:52:47.88 |
-07:04:58.4 |
HIP 38428 |
18.12 |
| 2026-04-12 12:00 |
07:52:47.36 |
-07:04:35.9 |
HIP 38428 |
17.72 |
| 2026-04-13 00:00 |
07:52:46.87 |
-07:04:13.4 |
HIP 38428 |
17.33 |
| 2026-04-13 12:00 |
07:52:46.42 |
-07:03:51.0 |
HIP 38428 |
16.94 |
| 2026-04-14 00:00 |
07:52:45.99 |
-07:03:28.6 |
HIP 38428 |
16.55 |
| 2026-04-14 12:00 |
07:52:45.60 |
-07:03:06.4 |
HIP 38428 |
16.18 |
| 2026-04-15 00:00 |
07:52:45.24 |
-07:02:44.2 |
HIP 38428 |
15.80 |
| 2026-04-15 12:00 |
07:52:44.92 |
-07:02:22.1 |
HIP 38428 |
15.43 |
| 2026-04-16 00:00 |
07:52:44.63 |
-07:02:00.1 |
HIP 38428 |
15.07 |