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) |
| 2026-05-12 00:00 |
08:15:59.22 |
+24:36:09.3 |
HIP 40595 |
18.22 |
| 2026-05-12 12:00 |
08:16:05.96 |
+24:35:40.0 |
HIP 40595 |
16.88 |
| 2026-05-13 00:00 |
08:16:12.79 |
+24:35:10.3 |
HIP 40595 |
15.58 |
| 2026-05-13 12:00 |
08:16:19.70 |
+24:34:40.5 |
HIP 40595 |
14.32 |
| 2026-05-14 00:00 |
08:16:26.69 |
+24:34:10.4 |
HIP 40595 |
13.14 |
| 2026-05-14 12:00 |
08:16:33.77 |
+24:33:40.1 |
HIP 40595 |
12.05 |
| 2026-05-15 00:00 |
08:16:40.93 |
+24:33:09.6 |
HIP 40595 |
11.11 |
| 2026-05-15 12:00 |
08:16:48.17 |
+24:32:38.8 |
HIP 40595 |
10.35 |
| 2026-05-16 00:00 |
08:16:55.50 |
+24:32:07.8 |
HIP 40595 |
9.84 |
| 2026-05-16 12:00 |
08:17:02.90 |
+24:31:36.6 |
HIP 40595 |
9.61 |
| 2026-05-17 00:00 |
08:17:10.39 |
+24:31:05.2 |
HIP 40595 |
9.71 |
| 2026-05-17 12:00 |
08:17:17.96 |
+24:30:33.5 |
HIP 40595 |
10.12 |
| 2026-05-18 00:00 |
08:17:25.61 |
+24:30:01.7 |
HIP 40595 |
10.83 |
| 2026-05-18 12:00 |
08:17:33.33 |
+24:29:29.6 |
HIP 40595 |
11.79 |
| 2026-05-19 00:00 |
08:17:41.14 |
+24:28:57.3 |
HIP 40595 |
12.96 |
| 2026-05-19 12:00 |
08:17:49.03 |
+24:28:24.7 |
HIP 40595 |
14.28 |
| 2026-05-20 00:00 |
08:17:56.99 |
+24:27:52.0 |
HIP 40595 |
15.72 |
| 2026-05-20 12:00 |
08:18:05.03 |
+24:27:19.1 |
HIP 40595 |
17.27 |
| 2026-05-21 00:00 |
08:18:13.15 |
+24:26:45.9 |
HIP 40595 |
18.90 |
| 2026-05-21 12:00 |
08:18:21.34 |
+24:26:12.5 |
HIP 40756 |
19.14 |
| 2026-05-22 00:00 |
08:18:29.61 |
+24:25:39.0 |
HIP 40756 |
17.65 |
| 2026-05-22 12:00 |
08:18:37.95 |
+24:25:05.2 |
HIP 40756 |
16.25 |
| 2026-05-23 00:00 |
08:18:46.37 |
+24:24:31.2 |
HIP 40756 |
14.97 |
| 2026-05-23 12:00 |
08:18:54.86 |
+24:23:57.1 |
HIP 40756 |
13.86 |
| 2026-05-24 00:00 |
08:19:03.43 |
+24:23:22.7 |
HIP 40756 |
12.96 |
| 2026-05-24 12:00 |
08:19:12.06 |
+24:22:48.1 |
HIP 40756 |
12.33 |
| 2026-05-25 00:00 |
08:19:20.77 |
+24:22:13.3 |
HIP 40756 |
12.03 |
| 2026-05-25 12:00 |
08:19:29.56 |
+24:21:38.4 |
HIP 40756 |
12.08 |
| 2026-05-26 00:00 |
08:19:38.41 |
+24:21:03.2 |
HIP 40756 |
12.49 |
| 2026-05-26 12:00 |
08:19:47.33 |
+24:20:27.9 |
HIP 40756 |
13.23 |
| 2026-05-27 00:00 |
08:19:56.32 |
+24:19:52.3 |
HIP 40756 |
14.26 |
| 2026-05-27 12:00 |
08:20:05.39 |
+24:19:16.6 |
HIP 40756 |
15.53 |
| 2026-05-28 00:00 |
08:20:14.52 |
+24:18:40.7 |
HIP 40756 |
16.99 |
| 2026-05-28 12:00 |
08:20:23.72 |
+24:18:04.6 |
HIP 40881 |
16.85 |
| 2026-05-29 00:00 |
08:20:32.99 |
+24:17:28.3 |
HIP 40881 |
16.13 |
| 2026-05-29 12:00 |
08:20:42.32 |
+24:16:51.8 |
HIP 40881 |
15.70 |
| 2026-05-30 00:00 |
08:20:51.72 |
+24:16:15.2 |
HIP 40881 |
15.57 |
| 2026-05-30 12:00 |
08:21:01.19 |
+24:15:38.4 |
HIP 40881 |
15.76 |
| 2026-05-31 00:00 |
08:21:10.72 |
+24:15:01.3 |
HIP 40881 |
16.27 |
| 2026-05-31 12:00 |
08:21:20.32 |
+24:14:24.2 |
HIP 40881 |
17.07 |
| 2026-06-01 00:00 |
08:21:29.99 |
+24:13:46.8 |
HIP 40881 |
18.13 |
| 2026-06-01 12:00 |
08:21:39.72 |
+24:13:09.3 |
HIP 41076 |
18.07 |
| 2026-06-02 00:00 |
08:21:49.51 |
+24:12:31.5 |
HIP 41076 |
15.79 |