メタデータ
| 項目 |
値 |
| Designation |
C/2014 Q6 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2015-01-06T09:14:07.203840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:59Z |
| Obs used |
40 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
15.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2014-10-28.0000000 |
| e |
0.99934882 |
| q (au) |
4.222707 |
| a (au) |
6484.666285 |
| i (deg) |
49.796804 |
| Ω (om, deg) |
326.655969 |
| ω (w, deg) |
2.534775 |
| M (ma, deg) |
359.999867 |
等級
散乱 + 全体線形
$$
M_a = (6.415 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.415 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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) |
| 2026-06-01 00:00 |
08:02:40.37 |
+53:36:55.2 |
HIP 39517 |
17.54 |
| 2026-06-01 12:00 |
08:02:45.96 |
+53:36:13.2 |
HIP 39517 |
16.91 |
| 2026-06-02 00:00 |
08:02:51.59 |
+53:35:31.3 |
HIP 39517 |
16.32 |
| 2026-06-02 12:00 |
08:02:57.26 |
+53:34:49.6 |
HIP 39517 |
15.77 |
| 2026-06-03 00:00 |
08:03:02.97 |
+53:34:08.1 |
HIP 39517 |
15.28 |
| 2026-06-03 12:00 |
08:03:08.71 |
+53:33:26.7 |
HIP 39517 |
14.84 |
| 2026-06-04 00:00 |
08:03:14.50 |
+53:32:45.4 |
HIP 39517 |
14.46 |
| 2026-06-04 12:00 |
08:03:20.33 |
+53:32:04.3 |
HIP 39517 |
14.16 |
| 2026-06-05 00:00 |
08:03:26.20 |
+53:31:23.4 |
HIP 39517 |
13.93 |
| 2026-06-05 12:00 |
08:03:32.11 |
+53:30:42.6 |
HIP 39517 |
13.78 |
| 2026-06-06 00:00 |
08:03:38.05 |
+53:30:02.0 |
HIP 39517 |
13.71 |
| 2026-06-06 12:00 |
08:03:44.03 |
+53:29:21.5 |
HIP 39517 |
13.72 |
| 2026-06-07 00:00 |
08:03:50.05 |
+53:28:41.2 |
HIP 39517 |
13.82 |
| 2026-06-07 12:00 |
08:03:56.11 |
+53:28:01.0 |
HIP 39517 |
14.01 |
| 2026-06-08 00:00 |
08:04:02.20 |
+53:27:21.0 |
HIP 39517 |
14.27 |
| 2026-06-08 12:00 |
08:04:08.33 |
+53:26:41.2 |
HIP 39517 |
14.61 |
| 2026-06-09 00:00 |
08:04:14.50 |
+53:26:01.6 |
HIP 39432 |
14.50 |
| 2026-06-09 12:00 |
08:04:20.70 |
+53:25:22.1 |
HIP 39432 |
14.26 |
| 2026-06-10 00:00 |
08:04:26.93 |
+53:24:42.8 |
HIP 39432 |
14.11 |
| 2026-06-10 12:00 |
08:04:33.21 |
+53:24:03.6 |
HIP 39432 |
14.07 |
| 2026-06-11 00:00 |
08:04:39.51 |
+53:23:24.7 |
HIP 39432 |
14.12 |
| 2026-06-11 12:00 |
08:04:45.85 |
+53:22:45.9 |
HIP 39432 |
14.26 |
| 2026-06-12 00:00 |
08:04:52.22 |
+53:22:07.3 |
HIP 39432 |
14.51 |
| 2026-06-12 12:00 |
08:04:58.63 |
+53:21:28.9 |
HIP 39432 |
14.84 |
| 2026-06-13 00:00 |
08:05:05.07 |
+53:20:50.6 |
HIP 39432 |
15.26 |
| 2026-06-13 12:00 |
08:05:11.54 |
+53:20:12.6 |
HIP 39432 |
15.76 |
| 2026-06-14 00:00 |
08:05:18.05 |
+53:19:34.7 |
HIP 39432 |
16.33 |
| 2026-06-14 12:00 |
08:05:24.58 |
+53:18:57.0 |
HIP 39432 |
16.97 |
| 2026-06-15 00:00 |
08:05:31.15 |
+53:18:19.5 |
HIP 39432 |
17.67 |
| 2026-06-15 12:00 |
08:05:37.75 |
+53:17:42.2 |
HIP 39432 |
18.42 |
| 2026-06-16 00:00 |
08:05:44.38 |
+53:17:05.1 |
HIP 39432 |
19.22 |
| 2026-06-16 12:00 |
08:05:51.04 |
+53:16:28.1 |
HIP 39432 |
20.06 |
| 2026-06-17 00:00 |
08:05:57.72 |
+53:15:51.4 |
HIP 39432 |
20.94 |
| 2026-06-17 12:00 |
08:06:04.44 |
+53:15:14.9 |
HIP 39432 |
21.85 |
| 2026-06-18 00:00 |
08:06:11.18 |
+53:14:38.5 |
HIP 39752 |
22.13 |
| 2026-06-18 12:00 |
08:06:17.96 |
+53:14:02.4 |
HIP 39752 |
22.13 |
| 2026-06-19 00:00 |
08:06:24.76 |
+53:13:26.5 |
HIP 39752 |
22.20 |
| 2026-06-19 12:00 |
08:06:31.58 |
+53:12:50.8 |
HIP 39752 |
22.32 |
| 2026-06-20 00:00 |
08:06:38.44 |
+53:12:15.2 |
HIP 39752 |
22.50 |
| 2026-06-20 12:00 |
08:06:45.32 |
+53:11:39.9 |
HIP 39752 |
22.73 |
| 2026-06-21 00:00 |
08:06:52.22 |
+53:11:04.8 |
HIP 39752 |
23.02 |
| 2026-06-21 12:00 |
08:06:59.15 |
+53:10:29.9 |
HIP 39752 |
23.36 |
| 2026-06-22 00:00 |
08:07:06.11 |
+53:09:55.2 |
HIP 39752 |
23.75 |