メタデータ
| 項目 |
値 |
| Designation |
C/2003 R1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-06-29T14:48:29.845440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:31Z |
| Obs used |
170 |
| NEO |
- |
| M1 |
14.600 |
| K1 |
7.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2003-10-14.0000000 |
| e |
0.89331449 |
| q (au) |
2.101884 |
| a (au) |
19.701685 |
| i (deg) |
149.195633 |
| Ω (om, deg) |
356.689063 |
| ω (w, deg) |
302.690112 |
| M (ma, deg) |
1.199006 |
等級
散乱 + 全体線形
$$
M_a = (16.163 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.163 |
| n |
2.000 |
| gf |
0.875 |
| gb |
-0.841 |
| k |
0.985 |
| δ90 |
1.000 |
| 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) |
| 2026-05-12 00:00 |
16:27:07.70 |
+08:12:45.4 |
HIP 80517 |
22.60 |
| 2026-05-12 12:00 |
16:27:03.81 |
+08:13:01.6 |
HIP 80517 |
21.81 |
| 2026-05-13 00:00 |
16:26:59.91 |
+08:13:17.6 |
HIP 80517 |
21.04 |
| 2026-05-13 12:00 |
16:26:55.99 |
+08:13:33.4 |
HIP 80517 |
20.29 |
| 2026-05-14 00:00 |
16:26:52.07 |
+08:13:49.0 |
HIP 80517 |
19.57 |
| 2026-05-14 12:00 |
16:26:48.14 |
+08:14:04.3 |
HIP 80517 |
18.88 |
| 2026-05-15 00:00 |
16:26:44.20 |
+08:14:19.4 |
HIP 80517 |
18.22 |
| 2026-05-15 12:00 |
16:26:40.25 |
+08:14:34.3 |
HIP 80517 |
17.59 |
| 2026-05-16 00:00 |
16:26:36.29 |
+08:14:49.0 |
HIP 80517 |
17.01 |
| 2026-05-16 12:00 |
16:26:32.32 |
+08:15:03.4 |
HIP 80517 |
16.46 |
| 2026-05-17 00:00 |
16:26:28.35 |
+08:15:17.6 |
HIP 80517 |
15.97 |
| 2026-05-17 12:00 |
16:26:24.37 |
+08:15:31.6 |
HIP 80517 |
15.53 |
| 2026-05-18 00:00 |
16:26:20.38 |
+08:15:45.4 |
HIP 80517 |
15.15 |
| 2026-05-18 12:00 |
16:26:16.38 |
+08:15:58.9 |
HIP 80517 |
14.83 |
| 2026-05-19 00:00 |
16:26:12.38 |
+08:16:12.2 |
HIP 80517 |
14.58 |
| 2026-05-19 12:00 |
16:26:08.38 |
+08:16:25.3 |
HIP 80517 |
14.40 |
| 2026-05-20 00:00 |
16:26:04.36 |
+08:16:38.1 |
HIP 80517 |
14.29 |
| 2026-05-20 12:00 |
16:26:00.35 |
+08:16:50.7 |
HIP 80517 |
14.26 |
| 2026-05-21 00:00 |
16:25:56.32 |
+08:17:03.1 |
HIP 80517 |
14.31 |
| 2026-05-21 12:00 |
16:25:52.29 |
+08:17:15.2 |
HIP 80517 |
14.43 |
| 2026-05-22 00:00 |
16:25:48.26 |
+08:17:27.1 |
HIP 80517 |
14.62 |
| 2026-05-22 12:00 |
16:25:44.23 |
+08:17:38.8 |
HIP 80517 |
14.89 |
| 2026-05-23 00:00 |
16:25:40.19 |
+08:17:50.2 |
HIP 80517 |
15.23 |
| 2026-05-23 12:00 |
16:25:36.14 |
+08:18:01.4 |
HIP 80517 |
15.62 |
| 2026-05-24 00:00 |
16:25:32.10 |
+08:18:12.3 |
HIP 80517 |
16.08 |
| 2026-05-24 12:00 |
16:25:28.05 |
+08:18:23.0 |
HIP 80517 |
16.59 |
| 2026-05-25 00:00 |
16:25:23.99 |
+08:18:33.5 |
HIP 80517 |
17.14 |
| 2026-05-25 12:00 |
16:25:19.94 |
+08:18:43.7 |
HIP 80517 |
17.74 |
| 2026-05-26 00:00 |
16:25:15.88 |
+08:18:53.7 |
HIP 80517 |
18.38 |
| 2026-05-26 12:00 |
16:25:11.83 |
+08:19:03.4 |
HIP 80517 |
19.06 |
| 2026-05-27 00:00 |
16:25:07.77 |
+08:19:12.9 |
HIP 80517 |
19.77 |
| 2026-05-27 12:00 |
16:25:03.71 |
+08:19:22.2 |
HIP 80517 |
20.51 |
| 2026-05-28 00:00 |
16:24:59.64 |
+08:19:31.2 |
HIP 80413 |
20.21 |
| 2026-05-28 12:00 |
16:24:55.58 |
+08:19:40.0 |
HIP 80413 |
19.94 |
| 2026-05-29 00:00 |
16:24:51.52 |
+08:19:48.5 |
HIP 80413 |
19.73 |
| 2026-05-29 12:00 |
16:24:47.46 |
+08:19:56.8 |
HIP 80413 |
19.57 |
| 2026-05-30 00:00 |
16:24:43.39 |
+08:20:04.8 |
HIP 80413 |
19.47 |
| 2026-05-30 12:00 |
16:24:39.33 |
+08:20:12.6 |
HIP 80413 |
19.42 |
| 2026-05-31 00:00 |
16:24:35.27 |
+08:20:20.2 |
HIP 80413 |
19.43 |
| 2026-05-31 12:00 |
16:24:31.21 |
+08:20:27.5 |
HIP 80413 |
19.50 |
| 2026-06-01 00:00 |
16:24:27.15 |
+08:20:34.5 |
HIP 80413 |
19.62 |
| 2026-06-01 12:00 |
16:24:23.10 |
+08:20:41.3 |
HIP 80413 |
19.80 |
| 2026-06-02 00:00 |
16:24:19.04 |
+08:20:47.9 |
HIP 80413 |
20.03 |