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
$$
M_a = (0.968 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
0.968 |
| n |
6.000 |
| gf |
0.997 |
| gb |
-0.725 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
07:43:56.88 |
-05:27:59.6 |
HIP 37732 |
25.32 |
| 2026-07-29 12:00 |
07:43:59.45 |
-05:28:12.8 |
HIP 37732 |
25.40 |
| 2026-07-30 00:00 |
07:44:02.01 |
-05:28:26.2 |
HIP 37732 |
25.50 |
| 2026-07-30 12:00 |
07:44:04.57 |
-05:28:39.6 |
HIP 37732 |
25.62 |
| 2026-07-31 00:00 |
07:44:07.12 |
-05:28:53.3 |
HIP 37732 |
25.76 |
| 2026-07-31 12:00 |
07:44:09.66 |
-05:29:07.1 |
HIP 37864 |
25.91 |
| 2026-08-01 00:00 |
07:44:12.20 |
-05:29:21.0 |
HIP 37864 |
25.24 |
| 2026-08-01 12:00 |
07:44:14.74 |
-05:29:35.0 |
HIP 37864 |
24.58 |
| 2026-08-02 00:00 |
07:44:17.27 |
-05:29:49.3 |
HIP 37864 |
23.91 |
| 2026-08-02 12:00 |
07:44:19.79 |
-05:30:03.6 |
HIP 37864 |
23.24 |
| 2026-08-03 00:00 |
07:44:22.31 |
-05:30:18.1 |
HIP 37864 |
22.57 |
| 2026-08-03 12:00 |
07:44:24.82 |
-05:30:32.7 |
HIP 37864 |
21.91 |
| 2026-08-04 00:00 |
07:44:27.32 |
-05:30:47.5 |
HIP 37864 |
21.24 |
| 2026-08-04 12:00 |
07:44:29.82 |
-05:31:02.4 |
HIP 37864 |
20.58 |
| 2026-08-05 00:00 |
07:44:32.31 |
-05:31:17.4 |
HIP 37864 |
19.91 |
| 2026-08-05 12:00 |
07:44:34.79 |
-05:31:32.6 |
HIP 37864 |
19.25 |
| 2026-08-06 00:00 |
07:44:37.26 |
-05:31:47.9 |
HIP 37864 |
18.58 |
| 2026-08-06 12:00 |
07:44:39.73 |
-05:32:03.3 |
HIP 37864 |
17.92 |
| 2026-08-07 00:00 |
07:44:42.19 |
-05:32:18.9 |
HIP 37864 |
17.26 |
| 2026-08-07 12:00 |
07:44:44.64 |
-05:32:34.6 |
HIP 37864 |
16.60 |
| 2026-08-08 00:00 |
07:44:47.09 |
-05:32:50.5 |
HIP 37864 |
15.94 |
| 2026-08-08 12:00 |
07:44:49.52 |
-05:33:06.4 |
HIP 37864 |
15.28 |
| 2026-08-09 00:00 |
07:44:51.95 |
-05:33:22.6 |
HIP 37864 |
14.63 |
| 2026-08-09 12:00 |
07:44:54.37 |
-05:33:38.8 |
HIP 37864 |
13.97 |
| 2026-08-10 00:00 |
07:44:56.78 |
-05:33:55.2 |
HIP 37864 |
13.31 |
| 2026-08-10 12:00 |
07:44:59.18 |
-05:34:11.7 |
HIP 37864 |
12.66 |
| 2026-08-11 00:00 |
07:45:01.57 |
-05:34:28.3 |
HIP 37864 |
12.01 |
| 2026-08-11 12:00 |
07:45:03.95 |
-05:34:45.1 |
HIP 37864 |
11.36 |
| 2026-08-12 00:00 |
07:45:06.32 |
-05:35:01.9 |
HIP 37864 |
10.71 |
| 2026-08-12 12:00 |
07:45:08.69 |
-05:35:18.9 |
HIP 37864 |
10.06 |
| 2026-08-13 00:00 |
07:45:11.04 |
-05:35:36.1 |
HIP 37864 |
9.41 |
| 2026-08-13 12:00 |
07:45:13.38 |
-05:35:53.3 |
HIP 37864 |
8.77 |
| 2026-08-14 00:00 |
07:45:15.71 |
-05:36:10.7 |
HIP 37864 |
8.12 |
| 2026-08-14 12:00 |
07:45:18.04 |
-05:36:28.2 |
HIP 37864 |
7.48 |
| 2026-08-15 00:00 |
07:45:20.35 |
-05:36:45.8 |
HIP 37864 |
6.84 |
| 2026-08-15 12:00 |
07:45:22.65 |
-05:37:03.6 |
HIP 37864 |
6.20 |
| 2026-08-16 00:00 |
07:45:24.94 |
-05:37:21.4 |
HIP 37864 |
5.57 |
| 2026-08-16 12:00 |
07:45:27.21 |
-05:37:39.4 |
HIP 37864 |
4.94 |
| 2026-08-17 00:00 |
07:45:29.48 |
-05:37:57.5 |
HIP 37864 |
4.31 |
| 2026-08-17 12:00 |
07:45:31.73 |
-05:38:15.7 |
HIP 37864 |
3.69 |
| 2026-08-18 00:00 |
07:45:33.98 |
-05:38:34.0 |
HIP 37864 |
3.07 |
| 2026-08-18 12:00 |
07:45:36.21 |
-05:38:52.4 |
HIP 37864 |
2.46 |
| 2026-08-19 00:00 |
07:45:38.43 |
-05:39:11.0 |
HIP 37864 |
1.88 |