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) |
| 2026-07-29 00:00 |
19:09:22.92 |
-16:57:08.7 |
HIP 94110 |
4.01 |
| 2026-07-29 12:00 |
19:09:04.65 |
-16:57:39.6 |
HIP 94110 |
6.52 |
| 2026-07-30 00:00 |
19:08:46.50 |
-16:58:10.4 |
HIP 94110 |
10.35 |
| 2026-07-30 12:00 |
19:08:28.46 |
-16:58:41.3 |
HIP 94110 |
14.46 |
| 2026-07-31 00:00 |
19:08:10.54 |
-16:59:12.2 |
HIP 94110 |
18.65 |
| 2026-07-31 12:00 |
19:07:52.74 |
-16:59:43.2 |
HIP 93906 |
16.90 |
| 2026-08-01 00:00 |
19:07:35.06 |
-17:00:14.1 |
HIP 93906 |
14.81 |
| 2026-08-01 12:00 |
19:07:17.51 |
-17:00:45.1 |
HIP 93906 |
13.76 |
| 2026-08-02 00:00 |
19:07:00.09 |
-17:01:16.1 |
HIP 93906 |
13.96 |
| 2026-08-02 12:00 |
19:06:42.79 |
-17:01:47.1 |
HIP 93906 |
15.33 |
| 2026-08-03 00:00 |
19:06:25.64 |
-17:02:18.1 |
HIP 93906 |
17.58 |
| 2026-08-03 12:00 |
19:06:08.61 |
-17:02:49.1 |
HIP 93740 |
16.79 |
| 2026-08-04 00:00 |
19:05:51.73 |
-17:03:20.1 |
HIP 93740 |
14.35 |
| 2026-08-04 12:00 |
19:05:34.98 |
-17:03:51.1 |
HIP 93740 |
12.78 |
| 2026-08-05 00:00 |
19:05:18.38 |
-17:04:22.0 |
HIP 93740 |
12.39 |
| 2026-08-05 12:00 |
19:05:01.92 |
-17:04:53.0 |
HIP 93740 |
13.24 |
| 2026-08-06 00:00 |
19:04:45.61 |
-17:05:23.9 |
HIP 93740 |
15.11 |
| 2026-08-06 12:00 |
19:04:29.45 |
-17:05:54.8 |
HIP 93740 |
17.64 |
| 2026-08-07 00:00 |
19:04:13.44 |
-17:06:25.7 |
HIP 93740 |
20.58 |
| 2026-08-07 12:00 |
19:03:57.59 |
-17:06:56.6 |
HIP 93740 |
23.76 |
| 2026-08-08 00:00 |
19:03:41.89 |
-17:07:27.4 |
HIP 93740 |
27.07 |
| 2026-08-08 12:00 |
19:03:26.35 |
-17:07:58.2 |
HIP 93464 |
25.41 |
| 2026-08-09 00:00 |
19:03:10.97 |
-17:08:29.0 |
HIP 93444 |
23.00 |
| 2026-08-09 12:00 |
19:02:55.75 |
-17:08:59.7 |
HIP 93444 |
19.74 |
| 2026-08-10 00:00 |
19:02:40.70 |
-17:09:30.3 |
HIP 93444 |
16.68 |
| 2026-08-10 12:00 |
19:02:25.81 |
-17:10:01.0 |
HIP 93444 |
13.93 |
| 2026-08-11 00:00 |
19:02:11.10 |
-17:10:31.5 |
HIP 93444 |
11.66 |
| 2026-08-11 12:00 |
19:01:56.55 |
-17:11:02.0 |
HIP 93444 |
10.16 |
| 2026-08-12 00:00 |
19:01:42.18 |
-17:11:32.5 |
HIP 93444 |
9.75 |
| 2026-08-12 12:00 |
19:01:27.99 |
-17:12:02.8 |
HIP 93444 |
10.51 |
| 2026-08-13 00:00 |
19:01:13.97 |
-17:12:33.1 |
HIP 93444 |
12.19 |
| 2026-08-13 12:00 |
19:01:00.13 |
-17:13:03.3 |
HIP 93444 |
14.45 |
| 2026-08-14 00:00 |
19:00:46.47 |
-17:13:33.5 |
HIP 93319 |
16.28 |
| 2026-08-14 12:00 |
19:00:33.00 |
-17:14:03.5 |
HIP 93319 |
15.10 |
| 2026-08-15 00:00 |
19:00:19.71 |
-17:14:33.5 |
HIP 93319 |
14.57 |
| 2026-08-15 12:00 |
19:00:06.60 |
-17:15:03.4 |
HIP 93319 |
14.72 |
| 2026-08-16 00:00 |
18:59:53.68 |
-17:15:33.2 |
HIP 93319 |
15.51 |
| 2026-08-16 12:00 |
18:59:40.95 |
-17:16:02.9 |
HIP 93319 |
16.82 |
| 2026-08-17 00:00 |
18:59:28.41 |
-17:16:32.5 |
HIP 93319 |
18.53 |
| 2026-08-17 12:00 |
18:59:16.07 |
-17:17:02.0 |
HIP 93319 |
20.50 |
| 2026-08-18 00:00 |
18:59:03.91 |
-17:17:31.4 |
HIP 93319 |
22.66 |
| 2026-08-18 12:00 |
18:58:51.95 |
-17:18:00.6 |
HIP 93319 |
24.93 |
| 2026-08-19 00:00 |
18:58:40.19 |
-17:18:29.8 |
HIP 93319 |
27.29 |