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) |
| 2026-03-26 00:00 |
19:38:26.79 |
-18:03:12.0 |
HIP 96496 |
22.51 |
| 2026-03-26 12:00 |
19:38:42.16 |
-18:02:03.4 |
HIP 96496 |
26.28 |
| 2026-03-27 00:00 |
19:38:57.36 |
-18:00:54.9 |
HIP 96496 |
30.03 |
| 2026-03-27 12:00 |
19:39:12.39 |
-17:59:46.5 |
HIP 96496 |
33.75 |
| 2026-03-28 00:00 |
19:39:27.27 |
-17:58:38.4 |
HIP 96496 |
37.44 |
| 2026-03-28 12:00 |
19:39:41.98 |
-17:57:30.4 |
HIP 96921 |
34.42 |
| 2026-03-29 00:00 |
19:39:56.52 |
-17:56:22.6 |
HIP 96921 |
31.05 |
| 2026-03-29 12:00 |
19:40:10.90 |
-17:55:15.0 |
HIP 96921 |
27.79 |
| 2026-03-30 00:00 |
19:40:25.12 |
-17:54:07.6 |
HIP 96921 |
24.66 |
| 2026-03-30 12:00 |
19:40:39.16 |
-17:53:00.4 |
HIP 96921 |
21.70 |
| 2026-03-31 00:00 |
19:40:53.04 |
-17:51:53.4 |
HIP 96921 |
18.96 |
| 2026-03-31 12:00 |
19:41:06.75 |
-17:50:46.7 |
HIP 96921 |
16.55 |
| 2026-04-01 00:00 |
19:41:20.30 |
-17:49:40.1 |
HIP 96921 |
14.58 |
| 2026-04-01 12:00 |
19:41:33.67 |
-17:48:33.7 |
HIP 96921 |
13.23 |
| 2026-04-02 00:00 |
19:41:46.87 |
-17:47:27.6 |
HIP 96921 |
12.67 |
| 2026-04-02 12:00 |
19:41:59.90 |
-17:46:21.7 |
HIP 96921 |
12.97 |
| 2026-04-03 00:00 |
19:42:12.76 |
-17:45:16.0 |
HIP 96921 |
14.04 |
| 2026-04-03 12:00 |
19:42:25.44 |
-17:44:10.6 |
HIP 96921 |
15.71 |
| 2026-04-04 00:00 |
19:42:37.95 |
-17:43:05.4 |
HIP 96921 |
17.79 |
| 2026-04-04 12:00 |
19:42:50.29 |
-17:42:00.4 |
HIP 96921 |
20.13 |
| 2026-04-05 00:00 |
19:43:02.45 |
-17:40:55.7 |
HIP 96921 |
22.63 |
| 2026-04-05 12:00 |
19:43:14.43 |
-17:39:51.3 |
HIP 97134 |
24.13 |
| 2026-04-06 00:00 |
19:43:26.23 |
-17:38:47.1 |
HIP 97134 |
21.33 |
| 2026-04-06 12:00 |
19:43:37.86 |
-17:37:43.2 |
HIP 97134 |
18.62 |
| 2026-04-07 00:00 |
19:43:49.31 |
-17:36:39.6 |
HIP 97134 |
16.05 |
| 2026-04-07 12:00 |
19:44:00.57 |
-17:35:36.2 |
HIP 97134 |
13.64 |
| 2026-04-08 00:00 |
19:44:11.66 |
-17:34:33.2 |
HIP 97134 |
11.47 |
| 2026-04-08 12:00 |
19:44:22.56 |
-17:33:30.4 |
HIP 97134 |
9.68 |
| 2026-04-09 00:00 |
19:44:33.28 |
-17:32:27.9 |
HIP 97134 |
8.46 |
| 2026-04-09 12:00 |
19:44:43.82 |
-17:31:25.7 |
HIP 97192 |
7.50 |
| 2026-04-10 00:00 |
19:44:54.17 |
-17:30:23.8 |
HIP 97192 |
4.86 |
| 2026-04-10 12:00 |
19:45:04.34 |
-17:29:22.3 |
HIP 97192 |
2.34 |
| 2026-04-11 00:00 |
19:45:14.32 |
-17:28:21.0 |
HIP 97192 |
1.09 |
| 2026-04-11 12:00 |
19:45:24.11 |
-17:27:20.1 |
HIP 97192 |
3.17 |
| 2026-04-12 00:00 |
19:45:33.71 |
-17:26:19.5 |
HIP 97192 |
5.61 |
| 2026-04-12 12:00 |
19:45:43.13 |
-17:25:19.2 |
HIP 97192 |
8.04 |
| 2026-04-13 00:00 |
19:45:52.35 |
-17:24:19.3 |
HIP 97192 |
10.45 |
| 2026-04-13 12:00 |
19:46:01.38 |
-17:23:19.7 |
HIP 97192 |
12.82 |
| 2026-04-14 00:00 |
19:46:10.23 |
-17:22:20.5 |
HIP 97192 |
15.14 |
| 2026-04-14 12:00 |
19:46:18.87 |
-17:21:21.6 |
HIP 97192 |
17.42 |
| 2026-04-15 00:00 |
19:46:27.33 |
-17:20:23.0 |
HIP 97351 |
18.59 |
| 2026-04-15 12:00 |
19:46:35.59 |
-17:19:24.9 |
HIP 97351 |
16.75 |
| 2026-04-16 00:00 |
19:46:43.65 |
-17:18:27.1 |
HIP 97351 |
15.04 |