メタデータ
| 項目 |
値 |
| Designation |
P/2024 X3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-09-05T18:42:23.279040Z |
| Orbit solution date (soln_date, UTC) |
2026-05-22T14:12:28Z |
| Obs used |
116 |
| NEO |
- |
| M1 |
16.200 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-12-08T13:42:54.835200Z |
| Discovery magnitude (MPC) |
21.06 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2025-03-13.0000000 |
| e |
0.62624372 |
| q (au) |
2.614119 |
| a (au) |
6.994180 |
| i (deg) |
2.972391 |
| Ω (om, deg) |
113.365383 |
| ω (w, deg) |
352.941893 |
| M (ma, deg) |
10.029193 |
等級
散乱 + 全体線形
$$
M_a = (16.514 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.514 |
| n |
2.000 |
| gf |
0.969 |
| gb |
-0.865 |
| k |
0.995 |
| δ90 |
1.000 |
| 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) |
| 2026-06-01 00:00 |
13:43:24.37 |
-07:02:04.8 |
HIP 66853 |
20.77 |
| 2026-06-01 12:00 |
13:43:16.78 |
-07:01:39.8 |
HIP 66853 |
18.84 |
| 2026-06-02 00:00 |
13:43:09.35 |
-07:01:15.8 |
HIP 66853 |
16.96 |
| 2026-06-02 12:00 |
13:43:02.09 |
-07:00:52.9 |
HIP 66853 |
15.11 |
| 2026-06-03 00:00 |
13:42:54.99 |
-07:00:31.0 |
HIP 66853 |
13.32 |
| 2026-06-03 12:00 |
13:42:48.07 |
-07:00:10.1 |
HIP 66853 |
11.56 |
| 2026-06-04 00:00 |
13:42:41.31 |
-06:59:50.2 |
HIP 66853 |
9.85 |
| 2026-06-04 12:00 |
13:42:34.72 |
-06:59:31.4 |
HIP 66853 |
8.19 |
| 2026-06-05 00:00 |
13:42:28.29 |
-06:59:13.6 |
HIP 66853 |
6.57 |
| 2026-06-05 12:00 |
13:42:22.04 |
-06:58:56.8 |
HIP 66853 |
4.99 |
| 2026-06-06 00:00 |
13:42:15.95 |
-06:58:41.1 |
HIP 66853 |
3.46 |
| 2026-06-06 12:00 |
13:42:10.04 |
-06:58:26.4 |
HIP 66853 |
1.97 |
| 2026-06-07 00:00 |
13:42:04.29 |
-06:58:12.7 |
HIP 66853 |
0.53 |
| 2026-06-07 12:00 |
13:41:58.72 |
-06:58:00.0 |
HIP 66853 |
0.87 |
| 2026-06-08 00:00 |
13:41:53.32 |
-06:57:48.4 |
HIP 66853 |
2.23 |
| 2026-06-08 12:00 |
13:41:48.08 |
-06:57:37.9 |
HIP 66853 |
3.54 |
| 2026-06-09 00:00 |
13:41:43.02 |
-06:57:28.3 |
HIP 66853 |
4.80 |
| 2026-06-09 12:00 |
13:41:38.13 |
-06:57:19.8 |
HIP 66853 |
6.02 |
| 2026-06-10 00:00 |
13:41:33.42 |
-06:57:12.4 |
HIP 66853 |
7.20 |
| 2026-06-10 12:00 |
13:41:28.87 |
-06:57:06.0 |
HIP 66853 |
8.33 |
| 2026-06-11 00:00 |
13:41:24.50 |
-06:57:00.6 |
HIP 66853 |
9.42 |
| 2026-06-11 12:00 |
13:41:20.31 |
-06:56:56.2 |
HIP 66853 |
10.46 |
| 2026-06-12 00:00 |
13:41:16.28 |
-06:56:52.9 |
HIP 66853 |
11.46 |
| 2026-06-12 12:00 |
13:41:12.43 |
-06:56:50.6 |
HIP 66853 |
12.42 |
| 2026-06-13 00:00 |
13:41:08.75 |
-06:56:49.4 |
HIP 66853 |
13.33 |
| 2026-06-13 12:00 |
13:41:05.25 |
-06:56:49.2 |
HIP 66853 |
14.19 |
| 2026-06-14 00:00 |
13:41:01.92 |
-06:56:50.0 |
HIP 66853 |
15.01 |
| 2026-06-14 12:00 |
13:40:58.77 |
-06:56:51.9 |
HIP 66853 |
15.79 |
| 2026-06-15 00:00 |
13:40:55.79 |
-06:56:54.8 |
HIP 66853 |
16.52 |
| 2026-06-15 12:00 |
13:40:52.98 |
-06:56:58.7 |
HIP 66853 |
17.21 |
| 2026-06-16 00:00 |
13:40:50.35 |
-06:57:03.7 |
HIP 66853 |
17.86 |
| 2026-06-16 12:00 |
13:40:47.89 |
-06:57:09.7 |
HIP 66853 |
18.46 |
| 2026-06-17 00:00 |
13:40:45.61 |
-06:57:16.7 |
HIP 66853 |
19.02 |
| 2026-06-17 12:00 |
13:40:43.50 |
-06:57:24.7 |
HIP 66853 |
19.54 |
| 2026-06-18 00:00 |
13:40:41.57 |
-06:57:33.8 |
HIP 66853 |
20.01 |
| 2026-06-18 12:00 |
13:40:39.81 |
-06:57:43.8 |
HIP 66853 |
20.45 |
| 2026-06-19 00:00 |
13:40:38.22 |
-06:57:54.9 |
HIP 66853 |
20.84 |
| 2026-06-19 12:00 |
13:40:36.81 |
-06:58:07.0 |
HIP 66853 |
21.19 |
| 2026-06-20 00:00 |
13:40:35.57 |
-06:58:20.1 |
HIP 66853 |
21.49 |
| 2026-06-20 12:00 |
13:40:34.51 |
-06:58:34.2 |
HIP 66853 |
21.76 |
| 2026-06-21 00:00 |
13:40:33.62 |
-06:58:49.3 |
HIP 66853 |
21.99 |
| 2026-06-21 12:00 |
13:40:32.90 |
-06:59:05.4 |
HIP 66853 |
22.18 |
| 2026-06-22 00:00 |
13:40:32.35 |
-06:59:22.5 |
HIP 66853 |
22.33 |