メタデータ
| 項目 |
値 |
| Designation |
C/2003 K4 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-10-13T17:15:09.331200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:30Z |
| Obs used |
3625 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
7.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2004-06-15.0000000 |
| e |
1.00030070 |
| q (au) |
1.023617 |
| a (au) |
-3404.074214 |
| i (deg) |
134.252518 |
| Ω (om, deg) |
18.675722 |
| ω (w, deg) |
198.442708 |
| M (ma, deg) |
-0.000599 |
等級
散乱 + 全体線形
$$
M_a = (3.808 + 4.917\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
3.808 |
| n |
4.917 |
| gf |
1.000 |
| gb |
-0.895 |
| k |
0.998 |
| δ90 |
9.993 |
| 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) |
| 2026-06-01 00:00 |
01:10:56.45 |
+07:57:51.1 |
HIP 5562 |
9.90 |
| 2026-06-01 12:00 |
01:10:57.95 |
+07:58:01.5 |
HIP 5562 |
9.85 |
| 2026-06-02 00:00 |
01:10:59.43 |
+07:58:11.8 |
HIP 5562 |
9.81 |
| 2026-06-02 12:00 |
01:11:00.90 |
+07:58:22.0 |
HIP 5562 |
9.78 |
| 2026-06-03 00:00 |
01:11:02.35 |
+07:58:32.2 |
HIP 5562 |
9.78 |
| 2026-06-03 12:00 |
01:11:03.78 |
+07:58:42.2 |
HIP 5562 |
9.79 |
| 2026-06-04 00:00 |
01:11:05.20 |
+07:58:52.1 |
HIP 5562 |
9.81 |
| 2026-06-04 12:00 |
01:11:06.60 |
+07:59:02.0 |
HIP 5562 |
9.85 |
| 2026-06-05 00:00 |
01:11:07.98 |
+07:59:11.7 |
HIP 5562 |
9.91 |
| 2026-06-05 12:00 |
01:11:09.35 |
+07:59:21.3 |
HIP 5562 |
9.97 |
| 2026-06-06 00:00 |
01:11:10.70 |
+07:59:30.8 |
HIP 5562 |
10.05 |
| 2026-06-06 12:00 |
01:11:12.03 |
+07:59:40.3 |
HIP 5562 |
10.15 |
| 2026-06-07 00:00 |
01:11:13.35 |
+07:59:49.6 |
HIP 5562 |
10.25 |
| 2026-06-07 12:00 |
01:11:14.64 |
+07:59:58.8 |
HIP 5562 |
10.36 |
| 2026-06-08 00:00 |
01:11:15.92 |
+08:00:07.9 |
HIP 5562 |
10.49 |
| 2026-06-08 12:00 |
01:11:17.18 |
+08:00:16.9 |
HIP 5562 |
10.62 |
| 2026-06-09 00:00 |
01:11:18.43 |
+08:00:25.8 |
HIP 5562 |
10.76 |
| 2026-06-09 12:00 |
01:11:19.66 |
+08:00:34.6 |
HIP 5562 |
10.90 |
| 2026-06-10 00:00 |
01:11:20.86 |
+08:00:43.3 |
HIP 5562 |
11.06 |
| 2026-06-10 12:00 |
01:11:22.06 |
+08:00:51.8 |
HIP 5562 |
11.22 |
| 2026-06-11 00:00 |
01:11:23.23 |
+08:01:00.3 |
HIP 5562 |
11.38 |
| 2026-06-11 12:00 |
01:11:24.38 |
+08:01:08.7 |
HIP 5562 |
11.55 |
| 2026-06-12 00:00 |
01:11:25.52 |
+08:01:16.9 |
HIP 5562 |
11.72 |
| 2026-06-12 12:00 |
01:11:26.64 |
+08:01:25.0 |
HIP 5562 |
11.89 |
| 2026-06-13 00:00 |
01:11:27.73 |
+08:01:33.1 |
HIP 5562 |
12.07 |
| 2026-06-13 12:00 |
01:11:28.81 |
+08:01:41.0 |
HIP 5562 |
12.25 |
| 2026-06-14 00:00 |
01:11:29.88 |
+08:01:48.8 |
HIP 5562 |
12.43 |
| 2026-06-14 12:00 |
01:11:30.92 |
+08:01:56.4 |
HIP 5562 |
12.62 |
| 2026-06-15 00:00 |
01:11:31.94 |
+08:02:04.0 |
HIP 5562 |
12.80 |
| 2026-06-15 12:00 |
01:11:32.95 |
+08:02:11.5 |
HIP 5562 |
12.98 |
| 2026-06-16 00:00 |
01:11:33.93 |
+08:02:18.8 |
HIP 5562 |
13.17 |
| 2026-06-16 12:00 |
01:11:34.90 |
+08:02:26.0 |
HIP 5562 |
13.35 |
| 2026-06-17 00:00 |
01:11:35.84 |
+08:02:33.1 |
HIP 5562 |
13.54 |
| 2026-06-17 12:00 |
01:11:36.77 |
+08:02:40.1 |
HIP 5562 |
13.72 |
| 2026-06-18 00:00 |
01:11:37.68 |
+08:02:47.0 |
HIP 5562 |
13.90 |
| 2026-06-18 12:00 |
01:11:38.57 |
+08:02:53.8 |
HIP 5562 |
14.08 |
| 2026-06-19 00:00 |
01:11:39.44 |
+08:03:00.4 |
HIP 5562 |
14.26 |
| 2026-06-19 12:00 |
01:11:40.29 |
+08:03:06.9 |
HIP 5562 |
14.44 |
| 2026-06-20 00:00 |
01:11:41.12 |
+08:03:13.3 |
HIP 5562 |
14.61 |
| 2026-06-20 12:00 |
01:11:41.93 |
+08:03:19.6 |
HIP 5562 |
14.78 |
| 2026-06-21 00:00 |
01:11:42.72 |
+08:03:25.8 |
HIP 5562 |
14.95 |
| 2026-06-21 12:00 |
01:11:43.49 |
+08:03:31.8 |
HIP 5562 |
15.12 |
| 2026-06-22 00:00 |
01:11:44.24 |
+08:03:37.7 |
HIP 5562 |
15.29 |