メタデータ
| 項目 |
値 |
| Designation |
C/2002 J5 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-09-19T07:26:12.215040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:15Z |
| Obs used |
590 |
| NEO |
- |
| M1 |
4.500 |
| K1 |
11.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2003-10-16.0000000 |
| e |
1.00114515 |
| q (au) |
5.726793 |
| a (au) |
-5000.912684 |
| i (deg) |
117.228241 |
| Ω (om, deg) |
314.109921 |
| ω (w, deg) |
74.832991 |
| M (ma, deg) |
0.000074 |
等級
散乱 + 全体線形
$$
M_a = (0.980 + 5.994\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
0.980 |
| n |
5.994 |
| gf |
0.970 |
| gb |
-0.998 |
| k |
1.000 |
| δ90 |
9.999 |
| 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 |
07:38:11.68 |
-05:26:33.8 |
HIP 37233 |
9.93 |
| 2026-05-12 12:00 |
07:38:12.86 |
-05:26:22.1 |
HIP 37233 |
9.67 |
| 2026-05-13 00:00 |
07:38:14.06 |
-05:26:10.6 |
HIP 37233 |
9.41 |
| 2026-05-13 12:00 |
07:38:15.28 |
-05:25:59.2 |
HIP 37233 |
9.14 |
| 2026-05-14 00:00 |
07:38:16.53 |
-05:25:48.0 |
HIP 37233 |
8.89 |
| 2026-05-14 12:00 |
07:38:17.79 |
-05:25:36.9 |
HIP 37233 |
8.63 |
| 2026-05-15 00:00 |
07:38:19.07 |
-05:25:25.9 |
HIP 37233 |
8.37 |
| 2026-05-15 12:00 |
07:38:20.38 |
-05:25:15.1 |
HIP 37233 |
8.12 |
| 2026-05-16 00:00 |
07:38:21.70 |
-05:25:04.4 |
HIP 37233 |
7.87 |
| 2026-05-16 12:00 |
07:38:23.05 |
-05:24:53.8 |
HIP 37233 |
7.63 |
| 2026-05-17 00:00 |
07:38:24.41 |
-05:24:43.4 |
HIP 37233 |
7.39 |
| 2026-05-17 12:00 |
07:38:25.80 |
-05:24:33.1 |
HIP 37233 |
7.16 |
| 2026-05-18 00:00 |
07:38:27.20 |
-05:24:23.0 |
HIP 37233 |
6.94 |
| 2026-05-18 12:00 |
07:38:28.63 |
-05:24:13.0 |
HIP 37233 |
6.73 |
| 2026-05-19 00:00 |
07:38:30.07 |
-05:24:03.2 |
HIP 37233 |
6.52 |
| 2026-05-19 12:00 |
07:38:31.54 |
-05:23:53.5 |
HIP 37233 |
6.34 |
| 2026-05-20 00:00 |
07:38:33.02 |
-05:23:43.9 |
HIP 37233 |
6.16 |
| 2026-05-20 12:00 |
07:38:34.52 |
-05:23:34.5 |
HIP 37233 |
6.01 |
| 2026-05-21 00:00 |
07:38:36.04 |
-05:23:25.2 |
HIP 37233 |
5.87 |
| 2026-05-21 12:00 |
07:38:37.58 |
-05:23:16.1 |
HIP 37233 |
5.75 |
| 2026-05-22 00:00 |
07:38:39.14 |
-05:23:07.2 |
HIP 37233 |
5.66 |
| 2026-05-22 12:00 |
07:38:40.72 |
-05:22:58.3 |
HIP 37233 |
5.59 |
| 2026-05-23 00:00 |
07:38:42.31 |
-05:22:49.7 |
HIP 37233 |
5.55 |
| 2026-05-23 12:00 |
07:38:43.93 |
-05:22:41.2 |
HIP 37233 |
5.53 |
| 2026-05-24 00:00 |
07:38:45.56 |
-05:22:32.8 |
HIP 37233 |
5.55 |
| 2026-05-24 12:00 |
07:38:47.21 |
-05:22:24.6 |
HIP 37233 |
5.60 |
| 2026-05-25 00:00 |
07:38:48.87 |
-05:22:16.5 |
HIP 37233 |
5.67 |
| 2026-05-25 12:00 |
07:38:50.56 |
-05:22:08.6 |
HIP 37233 |
5.77 |
| 2026-05-26 00:00 |
07:38:52.26 |
-05:22:00.8 |
HIP 37233 |
5.91 |
| 2026-05-26 12:00 |
07:38:53.98 |
-05:21:53.2 |
HIP 37233 |
6.07 |
| 2026-05-27 00:00 |
07:38:55.72 |
-05:21:45.8 |
HIP 37233 |
6.25 |
| 2026-05-27 12:00 |
07:38:57.47 |
-05:21:38.5 |
HIP 37233 |
6.47 |
| 2026-05-28 00:00 |
07:38:59.24 |
-05:21:31.3 |
HIP 37233 |
6.70 |
| 2026-05-28 12:00 |
07:39:01.03 |
-05:21:24.4 |
HIP 37233 |
6.95 |
| 2026-05-29 00:00 |
07:39:02.83 |
-05:21:17.5 |
HIP 37233 |
7.23 |
| 2026-05-29 12:00 |
07:39:04.65 |
-05:21:10.8 |
HIP 37233 |
7.52 |
| 2026-05-30 00:00 |
07:39:06.48 |
-05:21:04.3 |
HIP 37233 |
7.83 |
| 2026-05-30 12:00 |
07:39:08.34 |
-05:20:57.9 |
HIP 37233 |
8.15 |
| 2026-05-31 00:00 |
07:39:10.21 |
-05:20:51.7 |
HIP 37233 |
8.49 |
| 2026-05-31 12:00 |
07:39:12.09 |
-05:20:45.7 |
HIP 37233 |
8.84 |
| 2026-06-01 00:00 |
07:39:13.99 |
-05:20:39.8 |
HIP 37233 |
9.21 |
| 2026-06-01 12:00 |
07:39:15.90 |
-05:20:34.0 |
HIP 37233 |
9.58 |
| 2026-06-02 00:00 |
07:39:17.84 |
-05:20:28.5 |
HIP 37233 |
9.97 |