P/2014 O3 (PANSTARRS)
メタデータ
| 項目 |
値 |
| Designation |
P/2014 O3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-04-17T13:13:10.761600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:57Z |
| Obs used |
53 |
| NEO |
- |
| M1 |
14.100 |
| 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) |
2014-07-17.0000000 |
| e |
0.38501995 |
| q (au) |
4.640620 |
| a (au) |
7.545968 |
| i (deg) |
7.806572 |
| Ω (om, deg) |
87.704076 |
| ω (w, deg) |
204.364367 |
| M (ma, deg) |
4.300672 |
等級
散乱 + 全体線形
$$
M_a = (18.936 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
18.936 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.855 |
| k |
0.800 |
| δ90 |
9.991 |
| 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) |
| 2026-02-03 00:00 |
08:24:37.27 |
+24:30:55.9 |
HIP 41279 |
13.61 |
| 2026-02-03 12:00 |
08:24:27.19 |
+24:31:31.3 |
HIP 41279 |
15.66 |
| 2026-02-04 00:00 |
08:24:17.13 |
+24:32:06.4 |
HIP 41279 |
17.79 |
| 2026-02-04 12:00 |
08:24:07.10 |
+24:32:41.2 |
HIP 41279 |
19.95 |
| 2026-02-05 00:00 |
08:23:57.09 |
+24:33:15.7 |
HIP 41279 |
22.16 |
| 2026-02-05 12:00 |
08:23:47.11 |
+24:33:50.0 |
HIP 41276 |
24.36 |
| 2026-02-06 00:00 |
08:23:37.15 |
+24:34:23.9 |
HIP 41276 |
26.58 |
| 2026-02-06 12:00 |
08:23:27.23 |
+24:34:57.6 |
HIP 41276 |
28.81 |
| 2026-02-07 00:00 |
08:23:17.33 |
+24:35:31.0 |
HIP 40934 |
29.76 |
| 2026-02-07 12:00 |
08:23:07.47 |
+24:36:04.1 |
HIP 40934 |
27.46 |
| 2026-02-08 00:00 |
08:22:57.64 |
+24:36:36.9 |
HIP 40934 |
25.17 |
| 2026-02-08 12:00 |
08:22:47.84 |
+24:37:09.4 |
HIP 40934 |
22.89 |
| 2026-02-09 00:00 |
08:22:38.08 |
+24:37:41.6 |
HIP 40934 |
20.62 |
| 2026-02-09 12:00 |
08:22:28.35 |
+24:38:13.5 |
HIP 40934 |
18.36 |
| 2026-02-10 00:00 |
08:22:18.67 |
+24:38:45.1 |
HIP 40934 |
16.12 |
| 2026-02-10 12:00 |
08:22:09.02 |
+24:39:16.4 |
HIP 40934 |
13.89 |
| 2026-02-11 00:00 |
08:21:59.41 |
+24:39:47.3 |
HIP 40934 |
11.69 |
| 2026-02-11 12:00 |
08:21:49.84 |
+24:40:18.0 |
HIP 40934 |
9.52 |
| 2026-02-12 00:00 |
08:21:40.32 |
+24:40:48.3 |
HIP 40934 |
7.39 |
| 2026-02-12 12:00 |
08:21:30.84 |
+24:41:18.3 |
HIP 40934 |
5.35 |
| 2026-02-13 00:00 |
08:21:21.40 |
+24:41:47.9 |
HIP 40934 |
3.54 |
| 2026-02-13 12:00 |
08:21:12.01 |
+24:42:17.3 |
HIP 40934 |
2.47 |
| 2026-02-14 00:00 |
08:21:02.67 |
+24:42:46.3 |
HIP 40934 |
3.03 |
| 2026-02-14 12:00 |
08:20:53.38 |
+24:43:14.9 |
HIP 40934 |
4.66 |
| 2026-02-15 00:00 |
08:20:44.13 |
+24:43:43.3 |
HIP 40934 |
6.59 |
| 2026-02-15 12:00 |
08:20:34.94 |
+24:44:11.3 |
HIP 40934 |
8.61 |
| 2026-02-16 00:00 |
08:20:25.80 |
+24:44:38.9 |
HIP 40934 |
10.67 |
| 2026-02-16 12:00 |
08:20:16.71 |
+24:45:06.2 |
HIP 40934 |
12.74 |
| 2026-02-17 00:00 |
08:20:07.68 |
+24:45:33.2 |
HIP 40934 |
14.80 |
| 2026-02-17 12:00 |
08:19:58.71 |
+24:45:59.8 |
HIP 40934 |
16.87 |
| 2026-02-18 00:00 |
08:19:49.79 |
+24:46:26.0 |
HIP 40934 |
18.92 |
| 2026-02-18 12:00 |
08:19:40.93 |
+24:46:51.9 |
HIP 40934 |
20.96 |
| 2026-02-19 00:00 |
08:19:32.13 |
+24:47:17.5 |
HIP 40934 |
22.99 |
| 2026-02-19 12:00 |
08:19:23.39 |
+24:47:42.6 |
HIP 40625 |
24.43 |
| 2026-02-20 00:00 |
08:19:14.71 |
+24:48:07.5 |
HIP 40625 |
22.43 |
| 2026-02-20 12:00 |
08:19:06.09 |
+24:48:31.9 |
HIP 40625 |
20.45 |
| 2026-02-21 00:00 |
08:18:57.54 |
+24:48:56.0 |
HIP 40625 |
18.48 |
| 2026-02-21 12:00 |
08:18:49.05 |
+24:49:19.8 |
HIP 40625 |
16.54 |
| 2026-02-22 00:00 |
08:18:40.63 |
+24:49:43.1 |
HIP 40625 |
14.61 |
| 2026-02-22 12:00 |
08:18:32.27 |
+24:50:06.1 |
HIP 40625 |
12.70 |
| 2026-02-23 00:00 |
08:18:23.99 |
+24:50:28.7 |
HIP 40625 |
10.83 |
| 2026-02-23 12:00 |
08:18:15.77 |
+24:50:51.0 |
HIP 40625 |
8.98 |
| 2026-02-24 00:00 |
08:18:07.62 |
+24:51:12.9 |
HIP 40625 |
7.18 |