メタデータ
| 項目 |
値 |
| Designation |
P/2024 R3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-05-07T17:15:21.168000Z |
| Orbit solution date (soln_date, UTC) |
2024-12-26T20:12:38Z |
| Obs used |
80 |
| NEO |
- |
| M1 |
14.500 |
| K1 |
11.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-09-08T11:47:55.017600Z |
| Discovery magnitude (MPC) |
21.16 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) |
2024-10-01.0000000 |
| e |
0.26657783 |
| q (au) |
2.344971 |
| a (au) |
3.197300 |
| i (deg) |
14.731631 |
| Ω (om, deg) |
33.281134 |
| ω (w, deg) |
309.091945 |
| M (ma, deg) |
25.218365 |
等級
散乱 + 全体線形
$$
M_a = (12.269 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.269 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.958 |
| k |
1.000 |
| 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) |
| 2026-09-20 00:00 |
10:28:00.39 |
+21:44:02.9 |
HIP 51187 |
11.46 |
| 2026-09-20 12:00 |
10:28:32.71 |
+21:41:17.9 |
HIP 51187 |
17.05 |
| 2026-09-21 00:00 |
10:29:04.96 |
+21:38:33.3 |
HIP 51187 |
24.04 |
| 2026-09-21 12:00 |
10:29:37.16 |
+21:35:49.1 |
HIP 51187 |
31.49 |
| 2026-09-22 00:00 |
10:30:09.30 |
+21:33:05.4 |
HIP 51567 |
38.70 |
| 2026-09-22 12:00 |
10:30:41.38 |
+21:30:22.1 |
HIP 51567 |
36.59 |
| 2026-09-23 00:00 |
10:31:13.40 |
+21:27:39.3 |
HIP 51567 |
36.12 |
| 2026-09-23 12:00 |
10:31:45.36 |
+21:24:56.9 |
HIP 51567 |
37.36 |
| 2026-09-24 00:00 |
10:32:17.26 |
+21:22:14.9 |
HIP 51641 |
32.05 |
| 2026-09-24 12:00 |
10:32:49.10 |
+21:19:33.4 |
HIP 51751 |
27.15 |
| 2026-09-25 00:00 |
10:33:20.87 |
+21:16:52.4 |
HIP 51751 |
23.70 |
| 2026-09-25 12:00 |
10:33:52.59 |
+21:14:11.8 |
HIP 51826 |
21.52 |
| 2026-09-26 00:00 |
10:34:24.24 |
+21:11:31.7 |
HIP 51826 |
16.71 |
| 2026-09-26 12:00 |
10:34:55.83 |
+21:08:52.1 |
HIP 51826 |
14.75 |
| 2026-09-27 00:00 |
10:35:27.35 |
+21:06:13.0 |
HIP 51826 |
16.68 |
| 2026-09-27 12:00 |
10:35:58.81 |
+21:03:34.3 |
HIP 51964 |
15.40 |
| 2026-09-28 00:00 |
10:36:30.21 |
+21:00:56.2 |
HIP 51964 |
7.70 |
| 2026-09-28 12:00 |
10:37:01.54 |
+20:58:18.5 |
HIP 51964 |
1.63 |
| 2026-09-29 00:00 |
10:37:32.81 |
+20:55:41.4 |
HIP 51964 |
8.16 |
| 2026-09-29 12:00 |
10:38:04.01 |
+20:53:04.7 |
HIP 51964 |
15.82 |
| 2026-09-30 00:00 |
10:38:35.15 |
+20:50:28.6 |
HIP 51964 |
23.52 |
| 2026-09-30 12:00 |
10:39:06.22 |
+20:47:53.0 |
HIP 51964 |
31.22 |
| 2026-10-01 00:00 |
10:39:37.22 |
+20:45:18.0 |
HIP 52317 |
28.01 |
| 2026-10-01 12:00 |
10:40:08.15 |
+20:42:43.4 |
HIP 52317 |
20.39 |
| 2026-10-02 00:00 |
10:40:39.02 |
+20:40:09.5 |
HIP 52317 |
12.85 |
| 2026-10-02 12:00 |
10:41:09.82 |
+20:37:36.0 |
HIP 52317 |
5.69 |
| 2026-10-03 00:00 |
10:41:40.54 |
+20:35:03.2 |
HIP 52317 |
4.05 |
| 2026-10-03 12:00 |
10:42:11.20 |
+20:32:30.9 |
HIP 52317 |
10.79 |
| 2026-10-04 00:00 |
10:42:41.79 |
+20:29:59.1 |
HIP 52317 |
18.22 |
| 2026-10-04 12:00 |
10:43:12.30 |
+20:27:28.0 |
HIP 52551 |
25.32 |
| 2026-10-05 00:00 |
10:43:42.74 |
+20:24:57.4 |
HIP 52551 |
21.92 |
| 2026-10-05 12:00 |
10:44:13.11 |
+20:22:27.4 |
HIP 52551 |
20.82 |
| 2026-10-06 00:00 |
10:44:43.41 |
+20:19:58.1 |
HIP 52551 |
22.36 |
| 2026-10-06 12:00 |
10:45:13.63 |
+20:17:29.3 |
HIP 52551 |
26.05 |
| 2026-10-07 00:00 |
10:45:43.78 |
+20:15:01.2 |
HIP 52747 |
27.09 |
| 2026-10-07 12:00 |
10:46:13.85 |
+20:12:33.7 |
HIP 52747 |
25.05 |
| 2026-10-08 00:00 |
10:46:43.84 |
+20:10:06.8 |
HIP 52747 |
25.15 |
| 2026-10-08 12:00 |
10:47:13.76 |
+20:07:40.6 |
HIP 52747 |
27.34 |
| 2026-10-09 00:00 |
10:47:43.59 |
+20:05:15.0 |
HIP 52934 |
25.88 |
| 2026-10-09 12:00 |
10:48:13.35 |
+20:02:50.1 |
HIP 52934 |
18.60 |
| 2026-10-10 00:00 |
10:48:43.03 |
+20:00:25.8 |
HIP 52934 |
11.49 |
| 2026-10-10 12:00 |
10:49:12.63 |
+19:58:02.2 |
HIP 52934 |
5.18 |
| 2026-10-11 00:00 |
10:49:42.14 |
+19:55:39.3 |
HIP 52934 |
5.45 |