P/2023 X3 (PANSTARRS)
メタデータ
| 項目 |
値 |
| Designation |
P/2023 X3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-04-21T16:49:11.565120Z |
| Orbit solution date (soln_date, UTC) |
2023-12-21T03:13:40Z |
| Obs used |
56 |
| NEO |
- |
| M1 |
14.600 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-12-07T08:24:53.740800Z |
| Discovery magnitude (MPC) |
21.15 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) |
2023-12-01.0000000 |
| e |
0.28714596 |
| q (au) |
3.030219 |
| a (au) |
4.250827 |
| i (deg) |
4.483381 |
| Ω (om, deg) |
62.013419 |
| ω (w, deg) |
40.768411 |
| M (ma, deg) |
343.952019 |
等級
散乱 + 全体線形
$$
M_a = (14.202 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.202 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.651 |
| k |
0.800 |
| 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) |
| 2026-02-03 00:00 |
14:44:47.97 |
-13:19:18.6 |
HIP 72084 |
31.26 |
| 2026-02-03 12:00 |
14:44:59.55 |
-13:20:07.7 |
HIP 72209 |
30.46 |
| 2026-02-04 00:00 |
14:45:10.93 |
-13:20:55.9 |
HIP 72209 |
28.37 |
| 2026-02-04 12:00 |
14:45:22.10 |
-13:21:43.0 |
HIP 72209 |
26.47 |
| 2026-02-05 00:00 |
14:45:33.05 |
-13:22:29.1 |
HIP 72209 |
24.78 |
| 2026-02-05 12:00 |
14:45:43.80 |
-13:23:14.3 |
HIP 72209 |
23.32 |
| 2026-02-06 00:00 |
14:45:54.34 |
-13:23:58.4 |
HIP 72209 |
22.13 |
| 2026-02-06 12:00 |
14:46:04.66 |
-13:24:41.5 |
HIP 72209 |
21.22 |
| 2026-02-07 00:00 |
14:46:14.77 |
-13:25:23.6 |
HIP 72209 |
20.62 |
| 2026-02-07 12:00 |
14:46:24.66 |
-13:26:04.7 |
HIP 72209 |
20.33 |
| 2026-02-08 00:00 |
14:46:34.33 |
-13:26:44.8 |
HIP 72209 |
20.34 |
| 2026-02-08 12:00 |
14:46:43.79 |
-13:27:23.9 |
HIP 72209 |
20.64 |
| 2026-02-09 00:00 |
14:46:53.03 |
-13:28:02.0 |
HIP 72209 |
21.18 |
| 2026-02-09 12:00 |
14:47:02.06 |
-13:28:39.0 |
HIP 72209 |
21.95 |
| 2026-02-10 00:00 |
14:47:10.86 |
-13:29:15.1 |
HIP 72209 |
22.89 |
| 2026-02-10 12:00 |
14:47:19.43 |
-13:29:50.1 |
HIP 72209 |
23.97 |
| 2026-02-11 00:00 |
14:47:27.79 |
-13:30:24.1 |
HIP 72209 |
25.16 |
| 2026-02-11 12:00 |
14:47:35.92 |
-13:30:57.0 |
HIP 72209 |
26.42 |
| 2026-02-12 00:00 |
14:47:43.83 |
-13:31:29.0 |
HIP 72209 |
27.75 |
| 2026-02-12 12:00 |
14:47:51.51 |
-13:31:59.9 |
HIP 72442 |
28.49 |
| 2026-02-13 00:00 |
14:47:58.97 |
-13:32:29.8 |
HIP 72442 |
28.10 |
| 2026-02-13 12:00 |
14:48:06.20 |
-13:32:58.7 |
HIP 72553 |
27.56 |
| 2026-02-14 00:00 |
14:48:13.20 |
-13:33:26.5 |
HIP 72553 |
25.91 |
| 2026-02-14 12:00 |
14:48:19.97 |
-13:33:53.3 |
HIP 72553 |
24.33 |
| 2026-02-15 00:00 |
14:48:26.51 |
-13:34:19.1 |
HIP 72553 |
22.83 |
| 2026-02-15 12:00 |
14:48:32.82 |
-13:34:43.9 |
HIP 72553 |
21.39 |
| 2026-02-16 00:00 |
14:48:38.90 |
-13:35:07.6 |
HIP 72553 |
20.03 |
| 2026-02-16 12:00 |
14:48:44.75 |
-13:35:30.3 |
HIP 72553 |
18.75 |
| 2026-02-17 00:00 |
14:48:50.36 |
-13:35:52.0 |
HIP 72553 |
17.55 |
| 2026-02-17 12:00 |
14:48:55.74 |
-13:36:12.6 |
HIP 72553 |
16.42 |
| 2026-02-18 00:00 |
14:49:00.88 |
-13:36:32.3 |
HIP 72553 |
15.38 |
| 2026-02-18 12:00 |
14:49:05.79 |
-13:36:50.8 |
HIP 72553 |
14.42 |
| 2026-02-19 00:00 |
14:49:10.46 |
-13:37:08.4 |
HIP 72553 |
13.55 |
| 2026-02-19 12:00 |
14:49:14.90 |
-13:37:24.9 |
HIP 72553 |
12.77 |
| 2026-02-20 00:00 |
14:49:19.10 |
-13:37:40.4 |
HIP 72553 |
12.07 |
| 2026-02-20 12:00 |
14:49:23.07 |
-13:37:54.9 |
HIP 72553 |
11.47 |
| 2026-02-21 00:00 |
14:49:26.79 |
-13:38:08.4 |
HIP 72553 |
10.95 |
| 2026-02-21 12:00 |
14:49:30.28 |
-13:38:20.8 |
HIP 72553 |
10.51 |
| 2026-02-22 00:00 |
14:49:33.53 |
-13:38:32.2 |
HIP 72553 |
10.15 |
| 2026-02-22 12:00 |
14:49:36.54 |
-13:38:42.6 |
HIP 72553 |
9.86 |
| 2026-02-23 00:00 |
14:49:39.31 |
-13:38:52.0 |
HIP 72553 |
9.64 |
| 2026-02-23 12:00 |
14:49:41.84 |
-13:39:00.3 |
HIP 72553 |
9.47 |
| 2026-02-24 00:00 |
14:49:44.13 |
-13:39:07.7 |
HIP 72553 |
9.35 |