メタデータ
| 項目 |
値 |
| Designation |
C/2002 Q3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-08-19T00:27:24.831360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:20Z |
| Obs used |
75 |
| NEO |
- |
| M1 |
17.100 |
| K1 |
10.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2002-08-29.0000000 |
| e |
0.99831744 |
| q (au) |
1.306123 |
| a (au) |
776.272581 |
| i (deg) |
96.895223 |
| Ω (om, deg) |
154.151313 |
| ω (w, deg) |
125.698640 |
| M (ma, deg) |
0.000455 |
等級
散乱 + 全体線形
$$
M_a = (18.038 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
18.038 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.800 |
| 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) |
| 2026-06-01 00:00 |
08:21:19.07 |
-59:13:01.3 |
HIP 41037 |
19.79 |
| 2026-06-01 12:00 |
08:21:22.16 |
-59:12:30.6 |
HIP 41037 |
20.07 |
| 2026-06-02 00:00 |
08:21:25.27 |
-59:12:00.2 |
HIP 41037 |
20.36 |
| 2026-06-02 12:00 |
08:21:28.41 |
-59:11:29.9 |
HIP 41037 |
20.67 |
| 2026-06-03 00:00 |
08:21:31.59 |
-59:10:59.9 |
HIP 41037 |
20.98 |
| 2026-06-03 12:00 |
08:21:34.79 |
-59:10:30.0 |
HIP 41037 |
21.31 |
| 2026-06-04 00:00 |
08:21:38.03 |
-59:10:00.4 |
HIP 41037 |
21.64 |
| 2026-06-04 12:00 |
08:21:41.29 |
-59:09:31.0 |
HIP 41037 |
21.98 |
| 2026-06-05 00:00 |
08:21:44.59 |
-59:09:01.9 |
HIP 41030 |
21.79 |
| 2026-06-05 12:00 |
08:21:47.91 |
-59:08:32.9 |
HIP 41030 |
21.22 |
| 2026-06-06 00:00 |
08:21:51.27 |
-59:08:04.2 |
HIP 41030 |
20.66 |
| 2026-06-06 12:00 |
08:21:54.65 |
-59:07:35.7 |
HIP 41030 |
20.10 |
| 2026-06-07 00:00 |
08:21:58.06 |
-59:07:07.4 |
HIP 41030 |
19.55 |
| 2026-06-07 12:00 |
08:22:01.50 |
-59:06:39.4 |
HIP 41030 |
19.01 |
| 2026-06-08 00:00 |
08:22:04.97 |
-59:06:11.6 |
HIP 41030 |
18.48 |
| 2026-06-08 12:00 |
08:22:08.46 |
-59:05:44.0 |
HIP 41030 |
17.97 |
| 2026-06-09 00:00 |
08:22:11.99 |
-59:05:16.6 |
HIP 41030 |
17.46 |
| 2026-06-09 12:00 |
08:22:15.54 |
-59:04:49.5 |
HIP 41030 |
16.97 |
| 2026-06-10 00:00 |
08:22:19.12 |
-59:04:22.7 |
HIP 41030 |
16.49 |
| 2026-06-10 12:00 |
08:22:22.73 |
-59:03:56.0 |
HIP 41030 |
16.03 |
| 2026-06-11 00:00 |
08:22:26.36 |
-59:03:29.6 |
HIP 41030 |
15.58 |
| 2026-06-11 12:00 |
08:22:30.02 |
-59:03:03.5 |
HIP 41030 |
15.15 |
| 2026-06-12 00:00 |
08:22:33.70 |
-59:02:37.6 |
HIP 41030 |
14.74 |
| 2026-06-12 12:00 |
08:22:37.42 |
-59:02:11.9 |
HIP 41030 |
14.36 |
| 2026-06-13 00:00 |
08:22:41.15 |
-59:01:46.5 |
HIP 41030 |
13.99 |
| 2026-06-13 12:00 |
08:22:44.92 |
-59:01:21.4 |
HIP 41030 |
13.65 |
| 2026-06-14 00:00 |
08:22:48.71 |
-59:00:56.4 |
HIP 41030 |
13.34 |
| 2026-06-14 12:00 |
08:22:52.52 |
-59:00:31.8 |
HIP 41030 |
13.06 |
| 2026-06-15 00:00 |
08:22:56.36 |
-59:00:07.4 |
HIP 41030 |
12.81 |
| 2026-06-15 12:00 |
08:23:00.22 |
-58:59:43.2 |
HIP 41030 |
12.59 |
| 2026-06-16 00:00 |
08:23:04.11 |
-58:59:19.4 |
HIP 41030 |
12.41 |
| 2026-06-16 12:00 |
08:23:08.02 |
-58:58:55.7 |
HIP 41030 |
12.26 |
| 2026-06-17 00:00 |
08:23:11.96 |
-58:58:32.4 |
HIP 41030 |
12.15 |
| 2026-06-17 12:00 |
08:23:15.92 |
-58:58:09.3 |
HIP 41030 |
12.08 |
| 2026-06-18 00:00 |
08:23:19.90 |
-58:57:46.4 |
HIP 41030 |
12.05 |
| 2026-06-18 12:00 |
08:23:23.90 |
-58:57:23.9 |
HIP 41030 |
12.05 |
| 2026-06-19 00:00 |
08:23:27.93 |
-58:57:01.6 |
HIP 41030 |
12.10 |
| 2026-06-19 12:00 |
08:23:31.98 |
-58:56:39.5 |
HIP 41030 |
12.18 |
| 2026-06-20 00:00 |
08:23:36.05 |
-58:56:17.8 |
HIP 41030 |
12.31 |
| 2026-06-20 12:00 |
08:23:40.14 |
-58:55:56.3 |
HIP 41030 |
12.47 |
| 2026-06-21 00:00 |
08:23:44.25 |
-58:55:35.0 |
HIP 41030 |
12.66 |
| 2026-06-21 12:00 |
08:23:48.39 |
-58:55:14.1 |
HIP 41030 |
12.89 |
| 2026-06-22 00:00 |
08:23:52.54 |
-58:54:53.4 |
HIP 41030 |
13.15 |