メタデータ
| 項目 |
値 |
| Designation |
435P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-04-30T15:49:53.086080Z |
| Orbit solution date (soln_date, UTC) |
2021-11-20T19:13:24Z |
| Obs used |
88 |
| NEO |
- |
| M1 |
18.800 |
| K1 |
4.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2015-05-18T13:04:20.524800Z |
| Discovery magnitude (MPC) |
22.76 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) |
2018-10-13.0000000 |
| e |
0.31859695 |
| q (au) |
2.056387 |
| a (au) |
3.017872 |
| i (deg) |
18.889136 |
| Ω (om, deg) |
98.561523 |
| ω (w, deg) |
244.367853 |
| M (ma, deg) |
168.322066 |
等級
散乱 + 全体線形
$$
M_a = (16.819 + 3.210\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.819 |
| n |
3.210 |
| gf |
1.000 |
| gb |
-1.000 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
20:46:56.81 |
-20:09:49.4 |
HIP 102723 |
39.01 |
| 2026-05-12 12:00 |
20:47:31.99 |
-20:11:39.9 |
HIP 102723 |
32.14 |
| 2026-05-13 00:00 |
20:48:06.96 |
-20:13:32.7 |
HIP 102723 |
26.20 |
| 2026-05-13 12:00 |
20:48:41.73 |
-20:15:27.7 |
HIP 102723 |
21.92 |
| 2026-05-14 00:00 |
20:49:16.28 |
-20:17:25.1 |
HIP 102723 |
20.30 |
| 2026-05-14 12:00 |
20:49:50.61 |
-20:19:24.8 |
HIP 102762 |
20.20 |
| 2026-05-15 00:00 |
20:50:24.73 |
-20:21:26.8 |
HIP 102762 |
23.11 |
| 2026-05-15 12:00 |
20:50:58.63 |
-20:23:31.2 |
HIP 102762 |
28.15 |
| 2026-05-16 00:00 |
20:51:32.30 |
-20:25:38.1 |
HIP 102762 |
34.36 |
| 2026-05-16 12:00 |
20:52:05.75 |
-20:27:47.4 |
HIP 102762 |
41.20 |
| 2026-05-17 00:00 |
20:52:38.97 |
-20:29:59.2 |
HIP 103218 |
39.71 |
| 2026-05-17 12:00 |
20:53:11.97 |
-20:32:13.5 |
HIP 103218 |
32.72 |
| 2026-05-18 00:00 |
20:53:44.73 |
-20:34:30.3 |
HIP 103218 |
26.33 |
| 2026-05-18 12:00 |
20:54:17.27 |
-20:36:49.7 |
HIP 103218 |
21.05 |
| 2026-05-19 00:00 |
20:54:49.56 |
-20:39:11.7 |
HIP 103218 |
17.82 |
| 2026-05-19 12:00 |
20:55:21.63 |
-20:41:36.3 |
HIP 103362 |
16.86 |
| 2026-05-20 00:00 |
20:55:53.45 |
-20:44:03.5 |
HIP 103362 |
12.11 |
| 2026-05-20 12:00 |
20:56:25.04 |
-20:46:33.5 |
HIP 103362 |
11.54 |
| 2026-05-21 00:00 |
20:56:56.38 |
-20:49:06.1 |
HIP 103362 |
15.55 |
| 2026-05-21 12:00 |
20:57:27.48 |
-20:51:41.4 |
HIP 103362 |
21.69 |
| 2026-05-22 00:00 |
20:57:58.33 |
-20:54:19.5 |
HIP 103507 |
26.05 |
| 2026-05-22 12:00 |
20:58:28.94 |
-20:57:00.3 |
HIP 103507 |
23.38 |
| 2026-05-23 00:00 |
20:58:59.30 |
-20:59:44.0 |
HIP 103507 |
22.98 |
| 2026-05-23 12:00 |
20:59:29.41 |
-21:02:30.5 |
HIP 103507 |
24.91 |
| 2026-05-24 00:00 |
20:59:59.27 |
-21:05:19.8 |
HIP 103507 |
28.68 |
| 2026-05-24 12:00 |
21:00:28.87 |
-21:08:12.0 |
HIP 103808 |
25.85 |
| 2026-05-25 00:00 |
21:00:58.21 |
-21:11:07.1 |
HIP 103808 |
18.44 |
| 2026-05-25 12:00 |
21:01:27.30 |
-21:14:05.1 |
HIP 103808 |
11.09 |
| 2026-05-26 00:00 |
21:01:56.13 |
-21:17:06.1 |
HIP 103808 |
3.91 |
| 2026-05-26 12:00 |
21:02:24.69 |
-21:20:10.1 |
HIP 103808 |
3.96 |
| 2026-05-27 00:00 |
21:02:52.99 |
-21:23:17.1 |
HIP 103808 |
11.06 |
| 2026-05-27 12:00 |
21:03:21.02 |
-21:26:27.1 |
HIP 103927 |
5.80 |
| 2026-05-28 00:00 |
21:03:48.78 |
-21:29:40.1 |
HIP 103927 |
6.31 |
| 2026-05-28 12:00 |
21:04:16.26 |
-21:32:56.2 |
HIP 103927 |
12.18 |
| 2026-05-29 00:00 |
21:04:43.48 |
-21:36:15.5 |
HIP 103927 |
18.92 |
| 2026-05-29 12:00 |
21:05:10.41 |
-21:39:37.8 |
HIP 103927 |
25.83 |
| 2026-05-30 00:00 |
21:05:37.07 |
-21:43:03.4 |
HIP 103927 |
32.78 |
| 2026-05-30 12:00 |
21:06:03.44 |
-21:46:32.1 |
HIP 104367 |
36.07 |
| 2026-05-31 00:00 |
21:06:29.54 |
-21:50:04.0 |
HIP 104367 |
30.94 |
| 2026-05-31 12:00 |
21:06:55.34 |
-21:53:39.1 |
HIP 104367 |
26.76 |
| 2026-06-01 00:00 |
21:07:20.85 |
-21:57:17.5 |
HIP 104367 |
24.03 |
| 2026-06-01 12:00 |
21:07:46.07 |
-22:00:59.2 |
HIP 104317 |
19.26 |
| 2026-06-02 00:00 |
21:08:11.00 |
-22:04:44.2 |
HIP 104317 |
15.77 |