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) |
| 2026-06-01 00:00 |
08:19:37.63 |
+32:34:25.0 |
HIP 40782 |
5.20 |
| 2026-06-01 12:00 |
08:20:10.11 |
+32:31:40.9 |
HIP 40782 |
9.52 |
| 2026-06-02 00:00 |
08:20:42.66 |
+32:28:56.5 |
HIP 40891 |
5.22 |
| 2026-06-02 12:00 |
08:21:15.28 |
+32:26:11.9 |
HIP 40891 |
7.62 |
| 2026-06-03 00:00 |
08:21:47.97 |
+32:23:27.2 |
HIP 40891 |
14.12 |
| 2026-06-03 12:00 |
08:22:20.74 |
+32:20:42.3 |
HIP 41159 |
19.54 |
| 2026-06-04 00:00 |
08:22:53.58 |
+32:17:57.2 |
HIP 41159 |
12.36 |
| 2026-06-04 12:00 |
08:23:26.49 |
+32:15:11.8 |
HIP 41159 |
5.92 |
| 2026-06-05 00:00 |
08:23:59.47 |
+32:12:26.4 |
HIP 41159 |
5.40 |
| 2026-06-05 12:00 |
08:24:32.51 |
+32:09:40.7 |
HIP 41248 |
7.59 |
| 2026-06-06 00:00 |
08:25:05.62 |
+32:06:54.8 |
HIP 41248 |
8.67 |
| 2026-06-06 12:00 |
08:25:38.80 |
+32:04:08.7 |
HIP 41248 |
14.37 |
| 2026-06-07 00:00 |
08:26:12.05 |
+32:01:22.5 |
HIP 41423 |
14.05 |
| 2026-06-07 12:00 |
08:26:45.36 |
+31:58:36.0 |
HIP 41490 |
12.17 |
| 2026-06-08 00:00 |
08:27:18.73 |
+31:55:49.3 |
HIP 41490 |
7.43 |
| 2026-06-08 12:00 |
08:27:52.17 |
+31:53:02.5 |
HIP 41490 |
8.84 |
| 2026-06-09 00:00 |
08:28:25.67 |
+31:50:15.5 |
HIP 41490 |
14.75 |
| 2026-06-09 12:00 |
08:28:59.23 |
+31:47:28.2 |
HIP 41657 |
17.63 |
| 2026-06-10 00:00 |
08:29:32.85 |
+31:44:40.8 |
HIP 41657 |
18.49 |
| 2026-06-10 12:00 |
08:30:06.53 |
+31:41:53.2 |
HIP 41685 |
19.62 |
| 2026-06-11 00:00 |
08:30:40.27 |
+31:39:05.3 |
HIP 41685 |
19.57 |
| 2026-06-11 12:00 |
08:31:14.06 |
+31:36:17.3 |
HIP 41685 |
22.38 |
| 2026-06-12 00:00 |
08:31:47.91 |
+31:33:29.1 |
HIP 41962 |
17.98 |
| 2026-06-12 12:00 |
08:32:21.82 |
+31:30:40.7 |
HIP 41962 |
10.52 |
| 2026-06-13 00:00 |
08:32:55.79 |
+31:27:52.1 |
HIP 41962 |
4.23 |
| 2026-06-13 12:00 |
08:33:29.81 |
+31:25:03.3 |
HIP 41962 |
6.77 |
| 2026-06-14 00:00 |
08:34:03.88 |
+31:22:14.3 |
HIP 41962 |
13.98 |
| 2026-06-14 12:00 |
08:34:38.00 |
+31:19:25.1 |
HIP 42150 |
18.70 |
| 2026-06-15 00:00 |
08:35:12.18 |
+31:16:35.7 |
HIP 42150 |
12.83 |
| 2026-06-15 12:00 |
08:35:46.40 |
+31:13:46.1 |
HIP 42150 |
10.12 |
| 2026-06-16 00:00 |
08:36:20.68 |
+31:10:56.4 |
HIP 42150 |
12.80 |
| 2026-06-16 12:00 |
08:36:55.00 |
+31:08:06.4 |
HIP 42150 |
18.69 |
| 2026-06-17 00:00 |
08:37:29.37 |
+31:05:16.3 |
HIP 42391 |
15.63 |
| 2026-06-17 12:00 |
08:38:03.78 |
+31:02:26.0 |
HIP 42391 |
10.51 |
| 2026-06-18 00:00 |
08:38:38.24 |
+30:59:35.4 |
HIP 42391 |
10.06 |
| 2026-06-18 12:00 |
08:39:12.75 |
+30:56:44.8 |
HIP 42391 |
14.74 |
| 2026-06-19 00:00 |
08:39:47.29 |
+30:53:53.9 |
HIP 42389 |
18.58 |
| 2026-06-19 12:00 |
08:40:21.88 |
+30:51:02.8 |
HIP 42389 |
23.79 |
| 2026-06-20 00:00 |
08:40:56.51 |
+30:48:11.6 |
HIP 42389 |
30.23 |
| 2026-06-20 12:00 |
08:41:31.18 |
+30:45:20.2 |
HIP 42389 |
37.28 |
| 2026-06-21 00:00 |
08:42:05.89 |
+30:42:28.6 |
HIP 42826 |
41.23 |
| 2026-06-21 12:00 |
08:42:40.64 |
+30:39:36.8 |
HIP 42954 |
34.64 |
| 2026-06-22 00:00 |
08:43:15.42 |
+30:36:44.9 |
HIP 42954 |
27.58 |