メタデータ
| 項目 |
値 |
| Designation |
466P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-05-03T09:52:48.434880Z |
| Orbit solution date (soln_date, UTC) |
2024-05-14T12:42:37Z |
| Obs used |
207 |
| NEO |
- |
| M1 |
11.900 |
| K1 |
17.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-06-26T10:11:45.830400Z |
| Discovery magnitude (MPC) |
19.12 G |
| Discovery observatory (MPC) |
G96 · University of Arizona Mt. Lemmon Survey |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2021-08-23.0000000 |
| e |
0.46691600 |
| q (au) |
2.155912 |
| a (au) |
4.044226 |
| i (deg) |
12.236217 |
| Ω (om, deg) |
119.886131 |
| ω (w, deg) |
196.588226 |
| M (ma, deg) |
285.057425 |
等級
散乱 + 全体線形
$$
M_a = (11.797 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.797 |
| n |
6.000 |
| gf |
0.982 |
| gb |
-0.739 |
| 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 |
07:29:33.29 |
+22:28:31.7 |
HIP 36386 |
19.11 |
| 2026-06-01 12:00 |
07:29:54.38 |
+22:28:10.5 |
HIP 36386 |
20.89 |
| 2026-06-02 00:00 |
07:30:15.54 |
+22:27:49.0 |
HIP 36573 |
18.52 |
| 2026-06-02 12:00 |
07:30:36.77 |
+22:27:27.1 |
HIP 36573 |
14.49 |
| 2026-06-03 00:00 |
07:30:58.06 |
+22:27:04.9 |
HIP 36573 |
11.19 |
| 2026-06-03 12:00 |
07:31:19.42 |
+22:26:42.3 |
HIP 36573 |
9.44 |
| 2026-06-04 00:00 |
07:31:40.84 |
+22:26:19.4 |
HIP 36573 |
10.11 |
| 2026-06-04 12:00 |
07:32:02.32 |
+22:25:56.2 |
HIP 36573 |
12.83 |
| 2026-06-05 00:00 |
07:32:23.87 |
+22:25:32.6 |
HIP 36708 |
11.88 |
| 2026-06-05 12:00 |
07:32:45.47 |
+22:25:08.7 |
HIP 36708 |
9.12 |
| 2026-06-06 00:00 |
07:33:07.14 |
+22:24:44.5 |
HIP 36708 |
8.70 |
| 2026-06-06 12:00 |
07:33:28.87 |
+22:24:19.9 |
HIP 36708 |
10.89 |
| 2026-06-07 00:00 |
07:33:50.65 |
+22:23:55.0 |
HIP 36853 |
11.76 |
| 2026-06-07 12:00 |
07:34:12.50 |
+22:23:29.8 |
HIP 36853 |
6.92 |
| 2026-06-08 00:00 |
07:34:34.40 |
+22:23:04.2 |
HIP 36853 |
2.99 |
| 2026-06-08 12:00 |
07:34:56.36 |
+22:22:38.3 |
HIP 36853 |
4.66 |
| 2026-06-09 00:00 |
07:35:18.37 |
+22:22:12.0 |
HIP 36853 |
9.31 |
| 2026-06-09 12:00 |
07:35:40.44 |
+22:21:45.5 |
HIP 36853 |
14.28 |
| 2026-06-10 00:00 |
07:36:02.57 |
+22:21:18.6 |
HIP 36853 |
19.35 |
| 2026-06-10 12:00 |
07:36:24.75 |
+22:20:51.3 |
HIP 37121 |
17.44 |
| 2026-06-11 00:00 |
07:36:46.98 |
+22:20:23.8 |
HIP 37121 |
12.30 |
| 2026-06-11 12:00 |
07:37:09.27 |
+22:19:55.9 |
HIP 37121 |
7.16 |
| 2026-06-12 00:00 |
07:37:31.61 |
+22:19:27.7 |
HIP 37121 |
2.19 |
| 2026-06-12 12:00 |
07:37:54.00 |
+22:18:59.2 |
HIP 37121 |
3.50 |
| 2026-06-13 00:00 |
07:38:16.44 |
+22:18:30.3 |
HIP 37203 |
3.76 |
| 2026-06-13 12:00 |
07:38:38.92 |
+22:18:01.1 |
HIP 37203 |
1.52 |
| 2026-06-14 00:00 |
07:39:01.46 |
+22:17:31.6 |
HIP 37203 |
6.73 |
| 2026-06-14 12:00 |
07:39:24.05 |
+22:17:01.8 |
HIP 37203 |
11.97 |
| 2026-06-15 00:00 |
07:39:46.68 |
+22:16:31.7 |
HIP 37203 |
17.23 |
| 2026-06-15 12:00 |
07:40:09.36 |
+22:16:01.2 |
HIP 37476 |
21.68 |
| 2026-06-16 00:00 |
07:40:32.08 |
+22:15:30.4 |
HIP 37476 |
16.77 |
| 2026-06-16 12:00 |
07:40:54.85 |
+22:14:59.4 |
HIP 37476 |
12.16 |
| 2026-06-17 00:00 |
07:41:17.66 |
+22:14:28.0 |
HIP 37476 |
8.40 |
| 2026-06-17 12:00 |
07:41:40.52 |
+22:13:56.3 |
HIP 37476 |
7.02 |
| 2026-06-18 00:00 |
07:42:03.42 |
+22:13:24.2 |
HIP 37579 |
9.16 |
| 2026-06-18 12:00 |
07:42:26.35 |
+22:12:51.9 |
HIP 37579 |
3.90 |
| 2026-06-19 00:00 |
07:42:49.33 |
+22:12:19.3 |
HIP 37579 |
1.85 |
| 2026-06-19 12:00 |
07:43:12.35 |
+22:11:46.4 |
HIP 37579 |
7.00 |
| 2026-06-20 00:00 |
07:43:35.40 |
+22:11:13.1 |
HIP 37579 |
12.33 |
| 2026-06-20 12:00 |
07:43:58.50 |
+22:10:39.6 |
HIP 37636 |
15.73 |
| 2026-06-21 00:00 |
07:44:21.63 |
+22:10:05.8 |
HIP 37636 |
19.53 |
| 2026-06-21 12:00 |
07:44:44.79 |
+22:09:31.6 |
HIP 37783 |
19.47 |
| 2026-06-22 00:00 |
07:45:07.99 |
+22:08:57.2 |
HIP 37783 |
19.40 |