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 |
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) |
| 2026-07-29 00:00 |
08:45:11.05 |
+22:48:00.4 |
HIP 42840 |
20.38 |
| 2026-07-29 12:00 |
08:45:24.65 |
+22:47:12.9 |
HIP 42840 |
23.26 |
| 2026-07-30 00:00 |
08:45:38.26 |
+22:46:25.3 |
HIP 42840 |
26.23 |
| 2026-07-30 12:00 |
08:45:51.86 |
+22:45:37.8 |
HIP 43078 |
25.95 |
| 2026-07-31 00:00 |
08:46:05.47 |
+22:44:50.3 |
HIP 43078 |
24.32 |
| 2026-07-31 12:00 |
08:46:19.08 |
+22:44:02.9 |
HIP 43078 |
23.03 |
| 2026-08-01 00:00 |
08:46:32.69 |
+22:43:15.5 |
HIP 43078 |
22.14 |
| 2026-08-01 12:00 |
08:46:46.30 |
+22:42:28.0 |
HIP 43078 |
21.71 |
| 2026-08-02 00:00 |
08:46:59.91 |
+22:41:40.7 |
HIP 43078 |
21.76 |
| 2026-08-02 12:00 |
08:47:13.51 |
+22:40:53.3 |
HIP 43078 |
22.28 |
| 2026-08-03 00:00 |
08:47:27.12 |
+22:40:06.0 |
HIP 43078 |
23.25 |
| 2026-08-03 12:00 |
08:47:40.73 |
+22:39:18.7 |
HIP 43078 |
24.61 |
| 2026-08-04 00:00 |
08:47:54.33 |
+22:38:31.5 |
HIP 43078 |
26.30 |
| 2026-08-04 12:00 |
08:48:07.93 |
+22:37:44.3 |
HIP 43275 |
25.78 |
| 2026-08-05 00:00 |
08:48:21.53 |
+22:36:57.1 |
HIP 43275 |
23.78 |
| 2026-08-05 12:00 |
08:48:35.12 |
+22:36:10.0 |
HIP 43275 |
22.08 |
| 2026-08-06 00:00 |
08:48:48.71 |
+22:35:22.9 |
HIP 43275 |
20.75 |
| 2026-08-06 12:00 |
08:49:02.29 |
+22:34:35.9 |
HIP 43275 |
19.87 |
| 2026-08-07 00:00 |
08:49:15.87 |
+22:33:48.9 |
HIP 43275 |
19.48 |
| 2026-08-07 12:00 |
08:49:29.44 |
+22:33:02.0 |
HIP 43275 |
19.63 |
| 2026-08-08 00:00 |
08:49:43.00 |
+22:32:15.1 |
HIP 43275 |
20.31 |
| 2026-08-08 12:00 |
08:49:56.56 |
+22:31:28.3 |
HIP 43275 |
21.45 |
| 2026-08-09 00:00 |
08:50:10.11 |
+22:30:41.5 |
HIP 43381 |
22.69 |
| 2026-08-09 12:00 |
08:50:23.66 |
+22:29:54.8 |
HIP 43381 |
23.67 |
| 2026-08-10 00:00 |
08:50:37.19 |
+22:29:08.2 |
HIP 43381 |
25.02 |
| 2026-08-10 12:00 |
08:50:50.72 |
+22:28:21.6 |
HIP 43381 |
26.69 |
| 2026-08-11 00:00 |
08:51:04.23 |
+22:27:35.1 |
HIP 43595 |
23.94 |
| 2026-08-11 12:00 |
08:51:17.74 |
+22:26:48.7 |
HIP 43595 |
21.16 |
| 2026-08-12 00:00 |
08:51:31.23 |
+22:26:02.3 |
HIP 43595 |
18.54 |
| 2026-08-12 12:00 |
08:51:44.71 |
+22:25:16.1 |
HIP 43595 |
16.12 |
| 2026-08-13 00:00 |
08:51:58.18 |
+22:24:29.9 |
HIP 43595 |
14.03 |
| 2026-08-13 12:00 |
08:52:11.64 |
+22:23:43.8 |
HIP 43595 |
12.42 |
| 2026-08-14 00:00 |
08:52:25.08 |
+22:22:57.7 |
HIP 43595 |
11.50 |
| 2026-08-14 12:00 |
08:52:38.51 |
+22:22:11.8 |
HIP 43595 |
11.43 |
| 2026-08-15 00:00 |
08:52:51.92 |
+22:21:26.0 |
HIP 43595 |
12.22 |
| 2026-08-15 12:00 |
08:53:05.32 |
+22:20:40.2 |
HIP 43595 |
13.73 |
| 2026-08-16 00:00 |
08:53:18.71 |
+22:19:54.6 |
HIP 43727 |
15.65 |
| 2026-08-16 12:00 |
08:53:32.08 |
+22:19:09.0 |
HIP 43727 |
12.58 |
| 2026-08-17 00:00 |
08:53:45.43 |
+22:18:23.5 |
HIP 43727 |
9.59 |
| 2026-08-17 12:00 |
08:53:58.76 |
+22:17:38.2 |
HIP 43727 |
6.76 |
| 2026-08-18 00:00 |
08:54:12.08 |
+22:16:52.9 |
HIP 43727 |
4.45 |
| 2026-08-18 12:00 |
08:54:25.37 |
+22:16:07.8 |
HIP 43727 |
3.75 |
| 2026-08-19 00:00 |
08:54:38.65 |
+22:15:22.8 |
HIP 43727 |
5.32 |