メタデータ
| 項目 |
値 |
| Designation |
P/2024 F1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-10-25T12:25:16.164480Z |
| Orbit solution date (soln_date, UTC) |
2025-01-14T17:42:19Z |
| Obs used |
53 |
| NEO |
- |
| M1 |
18.500 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-03-18T09:51:47.203200Z |
| Discovery magnitude (MPC) |
20.74 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2024-03-19.0000000 |
| e |
0.45999545 |
| q (au) |
1.859749 |
| a (au) |
3.443951 |
| i (deg) |
7.008084 |
| Ω (om, deg) |
251.523917 |
| ω (w, deg) |
229.523313 |
| M (ma, deg) |
22.435160 |
等級
散乱 + 全体線形
$$
M_a = (20.000 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
20.000 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.655 |
| k |
0.866 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
18:53:24.15 |
-17:43:53.2 |
HIP 92662 |
32.36 |
| 2026-09-20 12:00 |
18:53:26.20 |
-17:44:09.9 |
HIP 92662 |
32.20 |
| 2026-09-21 00:00 |
18:53:28.47 |
-17:44:26.3 |
HIP 92662 |
32.05 |
| 2026-09-21 12:00 |
18:53:30.94 |
-17:44:42.5 |
HIP 92662 |
31.94 |
| 2026-09-22 00:00 |
18:53:33.63 |
-17:44:58.4 |
HIP 92662 |
31.86 |
| 2026-09-22 12:00 |
18:53:36.52 |
-17:45:14.0 |
HIP 92662 |
31.81 |
| 2026-09-23 00:00 |
18:53:39.62 |
-17:45:29.3 |
HIP 92662 |
31.80 |
| 2026-09-23 12:00 |
18:53:42.93 |
-17:45:44.4 |
HIP 92662 |
31.83 |
| 2026-09-24 00:00 |
18:53:46.44 |
-17:45:59.1 |
HIP 92917 |
31.31 |
| 2026-09-24 12:00 |
18:53:50.16 |
-17:46:13.6 |
HIP 92917 |
30.39 |
| 2026-09-25 00:00 |
18:53:54.08 |
-17:46:27.8 |
HIP 92917 |
29.43 |
| 2026-09-25 12:00 |
18:53:58.21 |
-17:46:41.7 |
HIP 92917 |
28.42 |
| 2026-09-26 00:00 |
18:54:02.54 |
-17:46:55.3 |
HIP 92917 |
27.37 |
| 2026-09-26 12:00 |
18:54:07.08 |
-17:47:08.7 |
HIP 92917 |
26.27 |
| 2026-09-27 00:00 |
18:54:11.81 |
-17:47:21.7 |
HIP 92917 |
25.13 |
| 2026-09-27 12:00 |
18:54:16.75 |
-17:47:34.4 |
HIP 92917 |
23.94 |
| 2026-09-28 00:00 |
18:54:21.88 |
-17:47:46.8 |
HIP 92917 |
22.71 |
| 2026-09-28 12:00 |
18:54:27.22 |
-17:47:59.0 |
HIP 92917 |
21.44 |
| 2026-09-29 00:00 |
18:54:32.75 |
-17:48:10.8 |
HIP 92917 |
20.13 |
| 2026-09-29 12:00 |
18:54:38.48 |
-17:48:22.3 |
HIP 92917 |
18.78 |
| 2026-09-30 00:00 |
18:54:44.41 |
-17:48:33.5 |
HIP 92917 |
17.39 |
| 2026-09-30 12:00 |
18:54:50.54 |
-17:48:44.4 |
HIP 92917 |
15.96 |
| 2026-10-01 00:00 |
18:54:56.86 |
-17:48:55.0 |
HIP 92917 |
14.51 |
| 2026-10-01 12:00 |
18:55:03.38 |
-17:49:05.3 |
HIP 92917 |
13.02 |
| 2026-10-02 00:00 |
18:55:10.09 |
-17:49:15.3 |
HIP 92917 |
11.52 |
| 2026-10-02 12:00 |
18:55:17.00 |
-17:49:24.9 |
HIP 92917 |
10.01 |
| 2026-10-03 00:00 |
18:55:24.10 |
-17:49:34.3 |
HIP 92917 |
8.53 |
| 2026-10-03 12:00 |
18:55:31.39 |
-17:49:43.3 |
HIP 92917 |
7.10 |
| 2026-10-04 00:00 |
18:55:38.88 |
-17:49:51.9 |
HIP 92917 |
5.83 |
| 2026-10-04 12:00 |
18:55:46.56 |
-17:50:00.3 |
HIP 92917 |
4.89 |
| 2026-10-05 00:00 |
18:55:54.42 |
-17:50:08.3 |
HIP 92917 |
4.54 |
| 2026-10-05 12:00 |
18:56:02.48 |
-17:50:16.0 |
HIP 92917 |
4.95 |
| 2026-10-06 00:00 |
18:56:10.73 |
-17:50:23.3 |
HIP 92917 |
6.03 |
| 2026-10-06 12:00 |
18:56:19.16 |
-17:50:30.3 |
HIP 92917 |
7.51 |
| 2026-10-07 00:00 |
18:56:27.78 |
-17:50:36.9 |
HIP 92917 |
9.24 |
| 2026-10-07 12:00 |
18:56:36.59 |
-17:50:43.2 |
HIP 92917 |
11.13 |
| 2026-10-08 00:00 |
18:56:45.59 |
-17:50:49.2 |
HIP 92917 |
13.12 |
| 2026-10-08 12:00 |
18:56:54.77 |
-17:50:54.8 |
HIP 92917 |
15.20 |
| 2026-10-09 00:00 |
18:57:04.13 |
-17:51:00.1 |
HIP 92917 |
17.35 |
| 2026-10-09 12:00 |
18:57:13.68 |
-17:51:05.0 |
HIP 92917 |
19.56 |
| 2026-10-10 00:00 |
18:57:23.41 |
-17:51:09.5 |
HIP 92917 |
21.83 |
| 2026-10-10 12:00 |
18:57:33.33 |
-17:51:13.7 |
HIP 92917 |
24.15 |
| 2026-10-11 00:00 |
18:57:43.42 |
-17:51:17.5 |
HIP 92917 |
26.52 |