P/2024 R1 (PANSTARRS)
メタデータ
| 項目 |
値 |
| Designation |
P/2024 R1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-06-15T15:55:12.869760Z |
| Orbit solution date (soln_date, UTC) |
2024-10-11T15:13:32Z |
| Obs used |
46 |
| NEO |
- |
| M1 |
19.200 |
| K1 |
5.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-09-01T13:19:48.633600Z |
| Discovery magnitude (MPC) |
21.36 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2024-09-08.0000000 |
| e |
0.49291197 |
| q (au) |
1.749729 |
| a (au) |
3.450542 |
| i (deg) |
12.736343 |
| Ω (om, deg) |
84.982836 |
| ω (w, deg) |
230.577928 |
| M (ma, deg) |
12.968491 |
等級
散乱 + 全体線形
$$
M_a = (17.458 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.458 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.541 |
| 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 |
05:42:27.49 |
+26:21:57.9 |
HIP 26832 |
10.17 |
| 2026-02-03 12:00 |
05:42:16.77 |
+26:22:16.6 |
HIP 26832 |
8.69 |
| 2026-02-04 00:00 |
05:42:06.33 |
+26:22:35.0 |
HIP 26832 |
7.72 |
| 2026-02-04 12:00 |
05:41:56.18 |
+26:22:53.3 |
HIP 26832 |
7.41 |
| 2026-02-05 00:00 |
05:41:46.33 |
+26:23:11.4 |
HIP 26832 |
7.79 |
| 2026-02-05 12:00 |
05:41:36.76 |
+26:23:29.3 |
HIP 26832 |
8.70 |
| 2026-02-06 00:00 |
05:41:27.48 |
+26:23:47.1 |
HIP 26832 |
9.97 |
| 2026-02-06 12:00 |
05:41:18.50 |
+26:24:04.7 |
HIP 26832 |
11.44 |
| 2026-02-07 00:00 |
05:41:09.80 |
+26:24:22.2 |
HIP 26832 |
13.01 |
| 2026-02-07 12:00 |
05:41:01.40 |
+26:24:39.5 |
HIP 26832 |
14.63 |
| 2026-02-08 00:00 |
05:40:53.28 |
+26:24:56.7 |
HIP 26832 |
16.25 |
| 2026-02-08 12:00 |
05:40:45.46 |
+26:25:13.8 |
HIP 26832 |
17.86 |
| 2026-02-09 00:00 |
05:40:37.93 |
+26:25:30.8 |
HIP 26759 |
18.77 |
| 2026-02-09 12:00 |
05:40:30.69 |
+26:25:47.6 |
HIP 26759 |
19.60 |
| 2026-02-10 00:00 |
05:40:23.75 |
+26:26:04.4 |
HIP 26759 |
20.50 |
| 2026-02-10 12:00 |
05:40:17.09 |
+26:26:21.0 |
HIP 26566 |
19.91 |
| 2026-02-11 00:00 |
05:40:10.73 |
+26:26:37.5 |
HIP 26566 |
18.70 |
| 2026-02-11 12:00 |
05:40:04.66 |
+26:26:54.0 |
HIP 26566 |
17.60 |
| 2026-02-12 00:00 |
05:39:58.88 |
+26:27:10.3 |
HIP 26566 |
16.58 |
| 2026-02-12 12:00 |
05:39:53.40 |
+26:27:26.6 |
HIP 26566 |
15.67 |
| 2026-02-13 00:00 |
05:39:48.20 |
+26:27:42.8 |
HIP 26571 |
14.74 |
| 2026-02-13 12:00 |
05:39:43.29 |
+26:27:58.9 |
HIP 26571 |
13.73 |
| 2026-02-14 00:00 |
05:39:38.68 |
+26:28:14.9 |
HIP 26571 |
12.79 |
| 2026-02-14 12:00 |
05:39:34.36 |
+26:28:30.8 |
HIP 26571 |
11.91 |
| 2026-02-15 00:00 |
05:39:30.33 |
+26:28:46.7 |
HIP 26571 |
11.11 |
| 2026-02-15 12:00 |
05:39:26.58 |
+26:29:02.6 |
HIP 26571 |
10.36 |
| 2026-02-16 00:00 |
05:39:23.13 |
+26:29:18.3 |
HIP 26571 |
9.68 |
| 2026-02-16 12:00 |
05:39:19.97 |
+26:29:34.1 |
HIP 26571 |
9.06 |
| 2026-02-17 00:00 |
05:39:17.09 |
+26:29:49.7 |
HIP 26571 |
8.49 |
| 2026-02-17 12:00 |
05:39:14.50 |
+26:30:05.3 |
HIP 26571 |
7.98 |
| 2026-02-18 00:00 |
05:39:12.20 |
+26:30:20.9 |
HIP 26571 |
7.51 |
| 2026-02-18 12:00 |
05:39:10.19 |
+26:30:36.4 |
HIP 26571 |
7.08 |
| 2026-02-19 00:00 |
05:39:08.46 |
+26:30:51.9 |
HIP 26571 |
6.70 |
| 2026-02-19 12:00 |
05:39:07.02 |
+26:31:07.4 |
HIP 26571 |
6.34 |
| 2026-02-20 00:00 |
05:39:05.86 |
+26:31:22.8 |
HIP 26571 |
6.01 |
| 2026-02-20 12:00 |
05:39:04.99 |
+26:31:38.2 |
HIP 26571 |
5.71 |
| 2026-02-21 00:00 |
05:39:04.39 |
+26:31:53.6 |
HIP 26571 |
5.43 |
| 2026-02-21 12:00 |
05:39:04.08 |
+26:32:08.9 |
HIP 26571 |
5.16 |
| 2026-02-22 00:00 |
05:39:04.05 |
+26:32:24.3 |
HIP 26571 |
4.91 |
| 2026-02-22 12:00 |
05:39:04.30 |
+26:32:39.6 |
HIP 26571 |
4.69 |
| 2026-02-23 00:00 |
05:39:04.83 |
+26:32:54.8 |
HIP 26571 |
4.49 |
| 2026-02-23 12:00 |
05:39:05.64 |
+26:33:10.1 |
HIP 26571 |
4.33 |
| 2026-02-24 00:00 |
05:39:06.72 |
+26:33:25.4 |
HIP 26571 |
4.22 |