メタデータ
| 項目 |
値 |
| Designation |
511P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2025-07-10T19:10:49.324800Z |
| Orbit solution date (soln_date, UTC) |
2026-03-12T02:52:17Z |
| Obs used |
86 |
| NEO |
- |
| M1 |
15.800 |
| K1 |
13.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2015-12-12T12:34:40.684800Z |
| Discovery magnitude (MPC) |
22.58 G |
| 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) |
2024-03-01.0000000 |
| e |
0.23765110 |
| q (au) |
2.295953 |
| a (au) |
3.011683 |
| i (deg) |
14.783495 |
| Ω (om, deg) |
271.030812 |
| ω (w, deg) |
81.166342 |
| M (ma, deg) |
266.314774 |
等級
散乱 + 全体線形
$$
M_a = (16.304 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.304 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.567 |
| 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) |
| 2026-06-01 00:00 |
05:06:36.84 |
+24:52:56.0 |
HIP 23796 |
10.82 |
| 2026-06-01 12:00 |
05:07:30.37 |
+24:52:51.6 |
HIP 23860 |
4.06 |
| 2026-06-02 00:00 |
05:08:23.87 |
+24:52:46.3 |
HIP 23860 |
10.32 |
| 2026-06-02 12:00 |
05:09:17.35 |
+24:52:39.9 |
HIP 23860 |
22.16 |
| 2026-06-03 00:00 |
05:10:10.80 |
+24:52:32.5 |
HIP 24113 |
17.71 |
| 2026-06-03 12:00 |
05:11:04.22 |
+24:52:24.0 |
HIP 24113 |
16.72 |
| 2026-06-04 00:00 |
05:11:57.61 |
+24:52:14.6 |
HIP 24113 |
23.21 |
| 2026-06-04 12:00 |
05:12:50.97 |
+24:52:04.1 |
HIP 24385 |
14.23 |
| 2026-06-05 00:00 |
05:13:44.30 |
+24:51:52.6 |
HIP 24385 |
2.61 |
| 2026-06-05 12:00 |
05:14:37.60 |
+24:51:40.1 |
HIP 24385 |
10.19 |
| 2026-06-06 00:00 |
05:15:30.87 |
+24:51:26.6 |
HIP 24489 |
7.23 |
| 2026-06-06 12:00 |
05:16:24.11 |
+24:51:12.0 |
HIP 24489 |
16.85 |
| 2026-06-07 00:00 |
05:17:17.32 |
+24:50:56.5 |
HIP 24705 |
15.91 |
| 2026-06-07 12:00 |
05:18:10.49 |
+24:50:39.8 |
HIP 24705 |
13.52 |
| 2026-06-08 00:00 |
05:19:03.63 |
+24:50:22.2 |
HIP 24897 |
18.56 |
| 2026-06-08 12:00 |
05:19:56.74 |
+24:50:03.5 |
HIP 24897 |
11.36 |
| 2026-06-09 00:00 |
05:20:49.81 |
+24:49:43.8 |
HIP 24897 |
14.29 |
| 2026-06-09 12:00 |
05:21:42.85 |
+24:49:23.1 |
HIP 24897 |
23.86 |
| 2026-06-10 00:00 |
05:22:35.86 |
+24:49:01.4 |
HIP 25253 |
21.17 |
| 2026-06-10 12:00 |
05:23:28.83 |
+24:48:38.6 |
HIP 25253 |
11.60 |
| 2026-06-11 00:00 |
05:24:21.76 |
+24:48:14.7 |
HIP 25253 |
10.48 |
| 2026-06-11 12:00 |
05:25:14.66 |
+24:47:49.9 |
HIP 25253 |
19.33 |
| 2026-06-12 00:00 |
05:26:07.52 |
+24:47:24.0 |
HIP 25463 |
15.64 |
| 2026-06-12 12:00 |
05:27:00.34 |
+24:46:57.1 |
HIP 25463 |
14.25 |
| 2026-06-13 00:00 |
05:27:53.12 |
+24:46:29.1 |
HIP 25463 |
21.20 |
| 2026-06-13 12:00 |
05:28:45.86 |
+24:46:00.2 |
HIP 25695 |
24.04 |
| 2026-06-14 00:00 |
05:29:38.57 |
+24:45:30.1 |
HIP 25695 |
24.04 |
| 2026-06-14 12:00 |
05:30:31.23 |
+24:44:59.1 |
HIP 25929 |
24.88 |
| 2026-06-15 00:00 |
05:31:23.85 |
+24:44:27.0 |
HIP 25929 |
17.17 |
| 2026-06-15 12:00 |
05:32:16.43 |
+24:43:53.9 |
HIP 25929 |
16.02 |
| 2026-06-16 00:00 |
05:33:08.96 |
+24:43:19.7 |
HIP 26062 |
7.47 |
| 2026-06-16 12:00 |
05:34:01.45 |
+24:42:44.5 |
HIP 26062 |
8.59 |
| 2026-06-17 00:00 |
05:34:53.90 |
+24:42:08.3 |
HIP 26295 |
14.92 |
| 2026-06-17 12:00 |
05:35:46.30 |
+24:41:31.1 |
HIP 26295 |
4.37 |
| 2026-06-18 00:00 |
05:36:38.65 |
+24:40:52.8 |
HIP 26295 |
9.97 |
| 2026-06-18 12:00 |
05:37:30.95 |
+24:40:13.5 |
HIP 26295 |
21.52 |
| 2026-06-19 00:00 |
05:38:23.21 |
+24:39:33.1 |
HIP 26525 |
20.01 |
| 2026-06-19 12:00 |
05:39:15.42 |
+24:38:51.7 |
HIP 26691 |
15.73 |
| 2026-06-20 00:00 |
05:40:07.58 |
+24:38:09.3 |
HIP 26691 |
6.37 |
| 2026-06-20 12:00 |
05:40:59.69 |
+24:37:25.9 |
HIP 26691 |
10.75 |
| 2026-06-21 00:00 |
05:41:51.76 |
+24:36:41.4 |
HIP 26839 |
17.62 |
| 2026-06-21 12:00 |
05:42:43.77 |
+24:35:55.9 |
HIP 26839 |
19.88 |
| 2026-06-22 00:00 |
05:43:35.72 |
+24:35:09.4 |
HIP 27135 |
24.41 |