メタデータ
| 項目 |
値 |
| Designation |
C/2013 P3 (Palomar) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-11-23T23:00:50.428800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:38Z |
| Obs used |
492 |
| NEO |
- |
| M1 |
6.400 |
| K1 |
8.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2014-09-07.0000000 |
| e |
1.00115594 |
| q (au) |
8.646522 |
| a (au) |
-7480.047055 |
| i (deg) |
93.906204 |
| Ω (om, deg) |
177.275808 |
| ω (w, deg) |
177.190714 |
| M (ma, deg) |
-0.000119 |
等級
散乱 + 全体線形
$$
M_a = (2.034 + 4.864\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
2.034 |
| n |
4.864 |
| gf |
0.997 |
| gb |
-0.942 |
| k |
1.000 |
| δ90 |
9.998 |
| 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 |
08:11:17.59 |
-64:02:19.9 |
HIP 40031 |
4.55 |
| 2026-07-29 12:00 |
08:11:30.33 |
-64:02:22.1 |
HIP 40031 |
5.94 |
| 2026-07-30 00:00 |
08:11:43.06 |
-64:02:24.7 |
HIP 40031 |
7.33 |
| 2026-07-30 12:00 |
08:11:55.77 |
-64:02:28.0 |
HIP 40031 |
8.71 |
| 2026-07-31 00:00 |
08:12:08.47 |
-64:02:31.7 |
HIP 40031 |
10.10 |
| 2026-07-31 12:00 |
08:12:21.16 |
-64:02:36.1 |
HIP 40031 |
11.49 |
| 2026-08-01 00:00 |
08:12:33.83 |
-64:02:40.9 |
HIP 40031 |
12.87 |
| 2026-08-01 12:00 |
08:12:46.49 |
-64:02:46.4 |
HIP 40031 |
14.26 |
| 2026-08-02 00:00 |
08:12:59.13 |
-64:02:52.3 |
HIP 40031 |
15.64 |
| 2026-08-02 12:00 |
08:13:11.76 |
-64:02:58.8 |
HIP 40031 |
17.02 |
| 2026-08-03 00:00 |
08:13:24.37 |
-64:03:05.9 |
HIP 40031 |
18.40 |
| 2026-08-03 12:00 |
08:13:36.96 |
-64:03:13.5 |
HIP 40031 |
19.78 |
| 2026-08-04 00:00 |
08:13:49.54 |
-64:03:21.6 |
HIP 40031 |
21.16 |
| 2026-08-04 12:00 |
08:14:02.10 |
-64:03:30.3 |
HIP 40556 |
20.18 |
| 2026-08-05 00:00 |
08:14:14.64 |
-64:03:39.6 |
HIP 40556 |
18.86 |
| 2026-08-05 12:00 |
08:14:27.16 |
-64:03:49.3 |
HIP 40556 |
17.54 |
| 2026-08-06 00:00 |
08:14:39.66 |
-64:03:59.7 |
HIP 40556 |
16.24 |
| 2026-08-06 12:00 |
08:14:52.15 |
-64:04:10.5 |
HIP 40556 |
14.95 |
| 2026-08-07 00:00 |
08:15:04.61 |
-64:04:21.9 |
HIP 40556 |
13.66 |
| 2026-08-07 12:00 |
08:15:17.05 |
-64:04:33.9 |
HIP 40556 |
12.40 |
| 2026-08-08 00:00 |
08:15:29.47 |
-64:04:46.4 |
HIP 40556 |
11.16 |
| 2026-08-08 12:00 |
08:15:41.87 |
-64:04:59.4 |
HIP 40556 |
9.95 |
| 2026-08-09 00:00 |
08:15:54.24 |
-64:05:12.9 |
HIP 40556 |
8.78 |
| 2026-08-09 12:00 |
08:16:06.60 |
-64:05:27.0 |
HIP 40556 |
7.67 |
| 2026-08-10 00:00 |
08:16:18.92 |
-64:05:41.7 |
HIP 40556 |
6.66 |
| 2026-08-10 12:00 |
08:16:31.23 |
-64:05:56.9 |
HIP 40556 |
5.79 |
| 2026-08-11 00:00 |
08:16:43.50 |
-64:06:12.6 |
HIP 40556 |
5.12 |
| 2026-08-11 12:00 |
08:16:55.76 |
-64:06:28.8 |
HIP 40556 |
4.76 |
| 2026-08-12 00:00 |
08:17:07.98 |
-64:06:45.6 |
HIP 40556 |
4.76 |
| 2026-08-12 12:00 |
08:17:20.18 |
-64:07:02.9 |
HIP 40556 |
5.13 |
| 2026-08-13 00:00 |
08:17:32.35 |
-64:07:20.7 |
HIP 40556 |
5.79 |
| 2026-08-13 12:00 |
08:17:44.50 |
-64:07:39.1 |
HIP 40556 |
6.66 |
| 2026-08-14 00:00 |
08:17:56.61 |
-64:07:58.0 |
HIP 40556 |
7.66 |
| 2026-08-14 12:00 |
08:18:08.70 |
-64:08:17.4 |
HIP 40556 |
8.76 |
| 2026-08-15 00:00 |
08:18:20.75 |
-64:08:37.3 |
HIP 40556 |
9.91 |
| 2026-08-15 12:00 |
08:18:32.78 |
-64:08:57.7 |
HIP 40556 |
11.11 |
| 2026-08-16 00:00 |
08:18:44.77 |
-64:09:18.7 |
HIP 40556 |
12.33 |
| 2026-08-16 12:00 |
08:18:56.73 |
-64:09:40.2 |
HIP 40894 |
12.89 |
| 2026-08-17 00:00 |
08:19:08.66 |
-64:10:02.2 |
HIP 40894 |
11.92 |
| 2026-08-17 12:00 |
08:19:20.56 |
-64:10:24.7 |
HIP 40894 |
11.04 |
| 2026-08-18 00:00 |
08:19:32.42 |
-64:10:47.7 |
HIP 40894 |
10.27 |
| 2026-08-18 12:00 |
08:19:44.25 |
-64:11:11.3 |
HIP 40894 |
9.63 |
| 2026-08-19 00:00 |
08:19:56.04 |
-64:11:35.3 |
HIP 40894 |
9.16 |