メタデータ
| 項目 |
値 |
| Designation |
P/2010 D2 (WISE) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-03-05T03:52:32.606400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:40Z |
| Obs used |
66 |
| NEO |
- |
| M1 |
14.400 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-09-01.0000000 |
| e |
0.45302440 |
| q (au) |
3.659054 |
| a (au) |
6.689610 |
| i (deg) |
57.176974 |
| Ω (om, deg) |
319.835860 |
| ω (w, deg) |
120.068180 |
| M (ma, deg) |
10.244377 |
等級
散乱 + 全体線形
$$
M_a = (13.079 + 2.282\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.079 |
| n |
2.282 |
| gf |
0.887 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
4.192 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
23:43:10.13 |
+44:59:40.9 |
HIP 116983 |
6.61 |
| 2026-06-01 12:00 |
23:43:29.28 |
+45:07:19.0 |
HIP 116983 |
14.96 |
| 2026-06-02 00:00 |
23:43:48.31 |
+45:14:57.8 |
HIP 116941 |
22.62 |
| 2026-06-02 12:00 |
23:44:07.20 |
+45:22:37.3 |
HIP 117143 |
20.27 |
| 2026-06-03 00:00 |
23:44:25.97 |
+45:30:17.5 |
HIP 117143 |
11.92 |
| 2026-06-03 12:00 |
23:44:44.61 |
+45:37:58.4 |
HIP 117143 |
3.58 |
| 2026-06-04 00:00 |
23:45:03.11 |
+45:45:40.0 |
HIP 117143 |
4.78 |
| 2026-06-04 12:00 |
23:45:21.48 |
+45:53:22.2 |
HIP 117143 |
13.12 |
| 2026-06-05 00:00 |
23:45:39.71 |
+46:01:05.1 |
HIP 117342 |
20.10 |
| 2026-06-05 12:00 |
23:45:57.81 |
+46:08:48.7 |
HIP 117221 |
16.42 |
| 2026-06-06 00:00 |
23:46:15.76 |
+46:16:32.9 |
HIP 117221 |
8.99 |
| 2026-06-06 12:00 |
23:46:33.58 |
+46:24:17.7 |
HIP 117221 |
5.51 |
| 2026-06-07 00:00 |
23:46:51.25 |
+46:32:03.2 |
HIP 117221 |
10.89 |
| 2026-06-07 12:00 |
23:47:08.78 |
+46:39:49.3 |
HIP 117340 |
10.95 |
| 2026-06-08 00:00 |
23:47:26.16 |
+46:47:36.0 |
HIP 117340 |
2.63 |
| 2026-06-08 12:00 |
23:47:43.39 |
+46:55:23.3 |
HIP 117340 |
5.71 |
| 2026-06-09 00:00 |
23:48:00.46 |
+47:03:11.2 |
HIP 117397 |
2.84 |
| 2026-06-09 12:00 |
23:48:17.39 |
+47:10:59.7 |
HIP 117397 |
6.04 |
| 2026-06-10 00:00 |
23:48:34.16 |
+47:18:48.8 |
HIP 117397 |
14.26 |
| 2026-06-10 12:00 |
23:48:50.77 |
+47:26:38.5 |
HIP 117591 |
20.80 |
| 2026-06-11 00:00 |
23:49:07.23 |
+47:34:28.8 |
HIP 117591 |
18.10 |
| 2026-06-11 12:00 |
23:49:23.52 |
+47:42:19.6 |
HIP 117591 |
19.02 |
| 2026-06-12 00:00 |
23:49:39.65 |
+47:50:10.9 |
HIP 117637 |
18.68 |
| 2026-06-12 12:00 |
23:49:55.61 |
+47:58:02.8 |
HIP 117637 |
19.95 |
| 2026-06-13 00:00 |
23:50:11.41 |
+48:05:55.1 |
HIP 117637 |
24.22 |
| 2026-06-13 12:00 |
23:50:27.03 |
+48:13:48.0 |
HIP 117435 |
26.58 |
| 2026-06-14 00:00 |
23:50:42.49 |
+48:21:41.4 |
HIP 117754 |
22.35 |
| 2026-06-14 12:00 |
23:50:57.76 |
+48:29:35.3 |
HIP 117754 |
18.61 |
| 2026-06-15 00:00 |
23:51:12.87 |
+48:37:29.7 |
HIP 117754 |
18.22 |
| 2026-06-15 12:00 |
23:51:27.79 |
+48:45:24.5 |
HIP 117754 |
21.38 |
| 2026-06-16 00:00 |
23:51:42.53 |
+48:53:19.8 |
HIP 117864 |
26.52 |
| 2026-06-16 12:00 |
23:51:57.08 |
+49:01:15.5 |
HIP 117864 |
24.61 |
| 2026-06-17 00:00 |
23:52:11.46 |
+49:09:11.6 |
HIP 117864 |
25.44 |
| 2026-06-17 12:00 |
23:52:25.64 |
+49:17:08.1 |
HIP 117864 |
28.77 |
| 2026-06-18 00:00 |
23:52:39.63 |
+49:25:05.1 |
HIP 117699 |
23.70 |
| 2026-06-18 12:00 |
23:52:53.43 |
+49:33:02.4 |
HIP 117699 |
16.75 |
| 2026-06-19 00:00 |
23:53:07.04 |
+49:41:00.1 |
HIP 117699 |
11.63 |
| 2026-06-19 12:00 |
23:53:20.45 |
+49:48:58.1 |
HIP 117699 |
11.20 |
| 2026-06-20 00:00 |
23:53:33.66 |
+49:56:56.5 |
HIP 117699 |
15.84 |
| 2026-06-20 12:00 |
23:53:46.67 |
+50:04:55.3 |
HIP 117692 |
15.99 |
| 2026-06-21 00:00 |
23:53:59.48 |
+50:12:54.4 |
HIP 117936 |
13.30 |
| 2026-06-21 12:00 |
23:54:12.08 |
+50:20:53.8 |
HIP 117936 |
12.86 |
| 2026-06-22 00:00 |
23:54:24.47 |
+50:28:53.5 |
HIP 117936 |
17.04 |