メタデータ
| 項目 |
値 |
| Designation |
P/2013 N3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-02-11T18:34:46.231680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:37Z |
| Obs used |
43 |
| NEO |
- |
| M1 |
7.400 |
| K1 |
20.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-07-30.0000000 |
| e |
0.59242870 |
| q (au) |
3.028877 |
| a (au) |
7.431528 |
| i (deg) |
2.170408 |
| Ω (om, deg) |
17.680575 |
| ω (w, deg) |
323.949612 |
| M (ma, deg) |
350.426848 |
等級
散乱 + 全体線形
$$
M_a = (9.371 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
9.371 |
| n |
6.000 |
| gf |
0.984 |
| gb |
-0.991 |
| k |
1.000 |
| δ90 |
7.774 |
| 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) |
| 2026-05-12 00:00 |
11:23:20.02 |
+04:56:06.3 |
HIP 55575 |
7.65 |
| 2026-05-12 12:00 |
11:23:16.96 |
+04:56:22.3 |
HIP 55575 |
7.50 |
| 2026-05-13 00:00 |
11:23:13.98 |
+04:56:37.7 |
HIP 55575 |
7.43 |
| 2026-05-13 12:00 |
11:23:11.08 |
+04:56:52.6 |
HIP 55575 |
7.44 |
| 2026-05-14 00:00 |
11:23:08.25 |
+04:57:07.1 |
HIP 55575 |
7.52 |
| 2026-05-14 12:00 |
11:23:05.51 |
+04:57:21.0 |
HIP 55575 |
7.67 |
| 2026-05-15 00:00 |
11:23:02.84 |
+04:57:34.4 |
HIP 55575 |
7.87 |
| 2026-05-15 12:00 |
11:23:00.26 |
+04:57:47.3 |
HIP 55575 |
8.12 |
| 2026-05-16 00:00 |
11:22:57.75 |
+04:57:59.7 |
HIP 55575 |
8.41 |
| 2026-05-16 12:00 |
11:22:55.32 |
+04:58:11.6 |
HIP 55575 |
8.72 |
| 2026-05-17 00:00 |
11:22:52.98 |
+04:58:22.9 |
HIP 55575 |
9.05 |
| 2026-05-17 12:00 |
11:22:50.71 |
+04:58:33.8 |
HIP 55575 |
9.39 |
| 2026-05-18 00:00 |
11:22:48.52 |
+04:58:44.1 |
HIP 55575 |
9.75 |
| 2026-05-18 12:00 |
11:22:46.42 |
+04:58:53.9 |
HIP 55575 |
10.10 |
| 2026-05-19 00:00 |
11:22:44.39 |
+04:59:03.2 |
HIP 55575 |
10.46 |
| 2026-05-19 12:00 |
11:22:42.44 |
+04:59:11.9 |
HIP 55575 |
10.82 |
| 2026-05-20 00:00 |
11:22:40.58 |
+04:59:20.2 |
HIP 55575 |
11.16 |
| 2026-05-20 12:00 |
11:22:38.80 |
+04:59:27.9 |
HIP 55575 |
11.50 |
| 2026-05-21 00:00 |
11:22:37.09 |
+04:59:35.1 |
HIP 55575 |
11.83 |
| 2026-05-21 12:00 |
11:22:35.47 |
+04:59:41.8 |
HIP 55575 |
12.15 |
| 2026-05-22 00:00 |
11:22:33.93 |
+04:59:48.0 |
HIP 55575 |
12.46 |
| 2026-05-22 12:00 |
11:22:32.47 |
+04:59:53.6 |
HIP 55575 |
12.75 |
| 2026-05-23 00:00 |
11:22:31.09 |
+04:59:58.8 |
HIP 55575 |
13.03 |
| 2026-05-23 12:00 |
11:22:29.79 |
+05:00:03.4 |
HIP 55575 |
13.29 |
| 2026-05-24 00:00 |
11:22:28.57 |
+05:00:07.5 |
HIP 55575 |
13.53 |
| 2026-05-24 12:00 |
11:22:27.44 |
+05:00:11.1 |
HIP 55575 |
13.76 |
| 2026-05-25 00:00 |
11:22:26.38 |
+05:00:14.1 |
HIP 55575 |
13.97 |
| 2026-05-25 12:00 |
11:22:25.40 |
+05:00:16.7 |
HIP 55575 |
14.16 |
| 2026-05-26 00:00 |
11:22:24.51 |
+05:00:18.7 |
HIP 55575 |
14.34 |
| 2026-05-26 12:00 |
11:22:23.70 |
+05:00:20.2 |
HIP 55575 |
14.49 |
| 2026-05-27 00:00 |
11:22:22.96 |
+05:00:21.2 |
HIP 55575 |
14.63 |
| 2026-05-27 12:00 |
11:22:22.31 |
+05:00:21.7 |
HIP 55575 |
14.75 |
| 2026-05-28 00:00 |
11:22:21.74 |
+05:00:21.7 |
HIP 55575 |
14.84 |
| 2026-05-28 12:00 |
11:22:21.25 |
+05:00:21.1 |
HIP 55575 |
14.92 |
| 2026-05-29 00:00 |
11:22:20.84 |
+05:00:20.1 |
HIP 55575 |
14.98 |
| 2026-05-29 12:00 |
11:22:20.51 |
+05:00:18.5 |
HIP 55575 |
15.02 |
| 2026-05-30 00:00 |
11:22:20.26 |
+05:00:16.4 |
HIP 55575 |
15.04 |
| 2026-05-30 12:00 |
11:22:20.09 |
+05:00:13.9 |
HIP 55575 |
15.04 |
| 2026-05-31 00:00 |
11:22:20.00 |
+05:00:10.8 |
HIP 55575 |
15.02 |
| 2026-05-31 12:00 |
11:22:19.99 |
+05:00:07.1 |
HIP 55575 |
14.98 |
| 2026-06-01 00:00 |
11:22:20.06 |
+05:00:03.0 |
HIP 55575 |
14.92 |
| 2026-06-01 12:00 |
11:22:20.21 |
+04:59:58.4 |
HIP 55575 |
14.84 |
| 2026-06-02 00:00 |
11:22:20.44 |
+04:59:53.3 |
HIP 55575 |
14.74 |