メタデータ
| 項目 |
値 |
| Designation |
C/2010 J4 (WISE) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-05-03T04:07:06.352320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:44Z |
| Obs used |
43 |
| NEO |
- |
| M1 |
19.600 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-05-17.0000000 |
| e |
0.99999359 |
| q (au) |
1.085533 |
| a (au) |
169416.296058 |
| i (deg) |
162.296527 |
| Ω (om, deg) |
316.405387 |
| ω (w, deg) |
83.753342 |
| M (ma, deg) |
0.000000 |
等級
散乱 + 全体線形
$$
M_a = (19.561 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
19.561 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-1.000 |
| 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 |
04:52:24.34 |
+06:49:01.4 |
HIP 22627 |
20.91 |
| 2026-03-26 12:00 |
04:52:25.38 |
+06:49:15.8 |
HIP 22627 |
21.20 |
| 2026-03-27 00:00 |
04:52:26.45 |
+06:49:30.2 |
HIP 22627 |
21.50 |
| 2026-03-27 12:00 |
04:52:27.54 |
+06:49:44.6 |
HIP 22627 |
21.80 |
| 2026-03-28 00:00 |
04:52:28.66 |
+06:49:59.0 |
HIP 22627 |
22.10 |
| 2026-03-28 12:00 |
04:52:29.81 |
+06:50:13.4 |
HIP 22627 |
22.40 |
| 2026-03-29 00:00 |
04:52:30.98 |
+06:50:27.8 |
HIP 22627 |
22.71 |
| 2026-03-29 12:00 |
04:52:32.18 |
+06:50:42.1 |
HIP 22627 |
23.03 |
| 2026-03-30 00:00 |
04:52:33.41 |
+06:50:56.5 |
HIP 22627 |
23.35 |
| 2026-03-30 12:00 |
04:52:34.66 |
+06:51:10.8 |
HIP 22627 |
23.67 |
| 2026-03-31 00:00 |
04:52:35.94 |
+06:51:25.2 |
HIP 22627 |
23.99 |
| 2026-03-31 12:00 |
04:52:37.24 |
+06:51:39.5 |
HIP 22627 |
24.32 |
| 2026-04-01 00:00 |
04:52:38.57 |
+06:51:53.8 |
HIP 22627 |
24.65 |
| 2026-04-01 12:00 |
04:52:39.93 |
+06:52:08.0 |
HIP 22627 |
24.99 |
| 2026-04-02 00:00 |
04:52:41.30 |
+06:52:22.3 |
HIP 22627 |
25.33 |
| 2026-04-02 12:00 |
04:52:42.71 |
+06:52:36.5 |
HIP 22627 |
25.68 |
| 2026-04-03 00:00 |
04:52:44.14 |
+06:52:50.7 |
HIP 22627 |
26.03 |
| 2026-04-03 12:00 |
04:52:45.59 |
+06:53:04.9 |
HIP 22627 |
26.38 |
| 2026-04-04 00:00 |
04:52:47.07 |
+06:53:19.1 |
HIP 22627 |
26.74 |
| 2026-04-04 12:00 |
04:52:48.57 |
+06:53:33.3 |
HIP 22627 |
27.10 |
| 2026-04-05 00:00 |
04:52:50.10 |
+06:53:47.4 |
HIP 22627 |
27.47 |
| 2026-04-05 12:00 |
04:52:51.65 |
+06:54:01.5 |
HIP 22627 |
27.84 |
| 2026-04-06 00:00 |
04:52:53.23 |
+06:54:15.6 |
HIP 22627 |
28.22 |
| 2026-04-06 12:00 |
04:52:54.83 |
+06:54:29.6 |
HIP 22627 |
28.60 |
| 2026-04-07 00:00 |
04:52:56.45 |
+06:54:43.7 |
HIP 22627 |
28.98 |
| 2026-04-07 12:00 |
04:52:58.10 |
+06:54:57.7 |
HIP 22627 |
29.37 |
| 2026-04-08 00:00 |
04:52:59.77 |
+06:55:11.6 |
HIP 22627 |
29.76 |
| 2026-04-08 12:00 |
04:53:01.47 |
+06:55:25.5 |
HIP 22627 |
30.16 |
| 2026-04-09 00:00 |
04:53:03.19 |
+06:55:39.5 |
HIP 22627 |
30.57 |
| 2026-04-09 12:00 |
04:53:04.93 |
+06:55:53.3 |
HIP 22627 |
30.97 |
| 2026-04-10 00:00 |
04:53:06.69 |
+06:56:07.2 |
HIP 22627 |
31.39 |
| 2026-04-10 12:00 |
04:53:08.48 |
+06:56:21.0 |
HIP 22627 |
31.80 |
| 2026-04-11 00:00 |
04:53:10.29 |
+06:56:34.7 |
HIP 22627 |
32.22 |
| 2026-04-11 12:00 |
04:53:12.12 |
+06:56:48.5 |
HIP 22627 |
32.65 |
| 2026-04-12 00:00 |
04:53:13.98 |
+06:57:02.1 |
HIP 22627 |
33.08 |
| 2026-04-12 12:00 |
04:53:15.86 |
+06:57:15.8 |
HIP 22627 |
33.52 |
| 2026-04-13 00:00 |
04:53:17.76 |
+06:57:29.4 |
HIP 22627 |
33.96 |
| 2026-04-13 12:00 |
04:53:19.68 |
+06:57:43.0 |
HIP 22627 |
34.40 |
| 2026-04-14 00:00 |
04:53:21.62 |
+06:57:56.5 |
HIP 22627 |
34.85 |
| 2026-04-14 12:00 |
04:53:23.59 |
+06:58:10.0 |
HIP 22627 |
35.31 |
| 2026-04-15 00:00 |
04:53:25.57 |
+06:58:23.4 |
HIP 22627 |
35.76 |
| 2026-04-15 12:00 |
04:53:27.58 |
+06:58:36.8 |
HIP 22627 |
36.23 |
| 2026-04-16 00:00 |
04:53:29.61 |
+06:58:50.2 |
HIP 22627 |
36.70 |