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) |
| 2026-07-29 00:00 |
09:27:06.20 |
+26:57:40.5 |
HIP 46354 |
10.36 |
| 2026-07-29 12:00 |
09:27:41.94 |
+26:54:38.9 |
HIP 46354 |
15.77 |
| 2026-07-30 00:00 |
09:28:17.67 |
+26:51:37.3 |
HIP 46354 |
23.14 |
| 2026-07-30 12:00 |
09:28:53.39 |
+26:48:35.6 |
HIP 46671 |
28.76 |
| 2026-07-31 00:00 |
09:29:29.10 |
+26:45:33.9 |
HIP 46671 |
22.86 |
| 2026-07-31 12:00 |
09:30:04.80 |
+26:42:32.1 |
HIP 46671 |
19.05 |
| 2026-08-01 00:00 |
09:30:40.49 |
+26:39:30.3 |
HIP 46671 |
18.67 |
| 2026-08-01 12:00 |
09:31:16.17 |
+26:36:28.4 |
HIP 46787 |
16.98 |
| 2026-08-02 00:00 |
09:31:51.84 |
+26:33:26.6 |
HIP 46787 |
16.46 |
| 2026-08-02 12:00 |
09:32:27.50 |
+26:30:24.6 |
HIP 46787 |
19.97 |
| 2026-08-03 00:00 |
09:33:03.15 |
+26:27:22.7 |
HIP 46916 |
12.27 |
| 2026-08-03 12:00 |
09:33:38.78 |
+26:24:20.7 |
HIP 46916 |
5.03 |
| 2026-08-04 00:00 |
09:34:14.40 |
+26:21:18.7 |
HIP 46916 |
6.76 |
| 2026-08-04 12:00 |
09:34:50.01 |
+26:18:16.7 |
HIP 47034 |
7.93 |
| 2026-08-05 00:00 |
09:35:25.61 |
+26:15:14.7 |
HIP 47034 |
5.27 |
| 2026-08-05 12:00 |
09:36:01.19 |
+26:12:12.7 |
HIP 47178 |
11.49 |
| 2026-08-06 00:00 |
09:36:36.76 |
+26:09:10.6 |
HIP 47178 |
5.86 |
| 2026-08-06 12:00 |
09:37:12.32 |
+26:06:08.5 |
HIP 47178 |
9.07 |
| 2026-08-07 00:00 |
09:37:47.86 |
+26:03:06.5 |
HIP 47178 |
16.61 |
| 2026-08-07 12:00 |
09:38:23.38 |
+26:00:04.4 |
HIP 47178 |
24.81 |
| 2026-08-08 00:00 |
09:38:58.89 |
+25:57:02.3 |
HIP 47466 |
21.63 |
| 2026-08-08 12:00 |
09:39:34.38 |
+25:54:00.3 |
HIP 47466 |
14.80 |
| 2026-08-09 00:00 |
09:40:09.86 |
+25:50:58.2 |
HIP 47466 |
10.75 |
| 2026-08-09 12:00 |
09:40:45.32 |
+25:47:56.2 |
HIP 47466 |
12.56 |
| 2026-08-10 00:00 |
09:41:20.76 |
+25:44:54.2 |
HIP 47550 |
10.65 |
| 2026-08-10 12:00 |
09:41:56.18 |
+25:41:52.2 |
HIP 47602 |
8.58 |
| 2026-08-11 00:00 |
09:42:31.58 |
+25:38:50.2 |
HIP 47602 |
4.15 |
| 2026-08-11 12:00 |
09:43:06.97 |
+25:35:48.3 |
HIP 47602 |
10.32 |
| 2026-08-12 00:00 |
09:43:42.33 |
+25:32:46.4 |
HIP 47749 |
15.65 |
| 2026-08-12 12:00 |
09:44:17.68 |
+25:29:44.6 |
HIP 47749 |
12.14 |
| 2026-08-13 00:00 |
09:44:53.00 |
+25:26:42.8 |
HIP 47749 |
13.98 |
| 2026-08-13 12:00 |
09:45:28.30 |
+25:23:41.0 |
HIP 47749 |
19.73 |
| 2026-08-14 00:00 |
09:46:03.58 |
+25:20:39.3 |
HIP 47749 |
26.99 |
| 2026-08-14 12:00 |
09:46:38.83 |
+25:17:37.7 |
HIP 48107 |
26.32 |
| 2026-08-15 00:00 |
09:47:14.06 |
+25:14:36.1 |
HIP 48107 |
17.85 |
| 2026-08-15 12:00 |
09:47:49.27 |
+25:11:34.6 |
HIP 48107 |
9.47 |
| 2026-08-16 00:00 |
09:48:24.45 |
+25:08:33.2 |
HIP 48107 |
2.43 |
| 2026-08-16 12:00 |
09:48:59.61 |
+25:05:31.8 |
HIP 48107 |
8.19 |
| 2026-08-17 00:00 |
09:49:34.74 |
+25:02:30.6 |
HIP 48107 |
16.52 |
| 2026-08-17 12:00 |
09:50:09.84 |
+24:59:29.4 |
HIP 48107 |
24.97 |
| 2026-08-18 00:00 |
09:50:44.92 |
+24:56:28.3 |
HIP 48417 |
22.67 |
| 2026-08-18 12:00 |
09:51:19.97 |
+24:53:27.3 |
HIP 48417 |
17.99 |
| 2026-08-19 00:00 |
09:51:55.00 |
+24:50:26.4 |
HIP 48417 |
16.66 |