C/2003 F1 (LINEAR)
メタデータ
| 項目 |
値 |
| Designation |
C/2003 F1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2003-06-28T11:02:31.318080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:27Z |
| Obs used |
1150 |
| NEO |
- |
| M1 |
8.300 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2003-05-31.0000000 |
| e |
0.80603402 |
| q (au) |
4.007799 |
| a (au) |
20.662380 |
| i (deg) |
70.221513 |
| Ω (om, deg) |
87.487652 |
| ω (w, deg) |
121.188132 |
| M (ma, deg) |
359.701345 |
等級
散乱 + 全体線形
$$
M_a = (4.239 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.239 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-02-03 00:00 |
03:40:16.90 |
-50:53:22.8 |
HIP 17314 |
20.66 |
| 2026-02-03 12:00 |
03:40:15.73 |
-50:52:24.7 |
HIP 17314 |
20.60 |
| 2026-02-04 00:00 |
03:40:14.62 |
-50:51:26.5 |
HIP 17314 |
20.58 |
| 2026-02-04 12:00 |
03:40:13.56 |
-50:50:28.2 |
HIP 17314 |
20.60 |
| 2026-02-05 00:00 |
03:40:12.55 |
-50:49:29.7 |
HIP 17314 |
20.65 |
| 2026-02-05 12:00 |
03:40:11.60 |
-50:48:31.1 |
HIP 17314 |
20.75 |
| 2026-02-06 00:00 |
03:40:10.69 |
-50:47:32.4 |
HIP 17314 |
20.88 |
| 2026-02-06 12:00 |
03:40:09.85 |
-50:46:33.6 |
HIP 17314 |
21.05 |
| 2026-02-07 00:00 |
03:40:09.05 |
-50:45:34.6 |
HIP 17314 |
21.26 |
| 2026-02-07 12:00 |
03:40:08.31 |
-50:44:35.6 |
HIP 17314 |
21.50 |
| 2026-02-08 00:00 |
03:40:07.62 |
-50:43:36.4 |
HIP 17314 |
21.78 |
| 2026-02-08 12:00 |
03:40:06.98 |
-50:42:37.2 |
HIP 17314 |
22.09 |
| 2026-02-09 00:00 |
03:40:06.40 |
-50:41:37.9 |
HIP 17314 |
22.43 |
| 2026-02-09 12:00 |
03:40:05.87 |
-50:40:38.4 |
HIP 17314 |
22.80 |
| 2026-02-10 00:00 |
03:40:05.40 |
-50:39:38.9 |
HIP 17314 |
23.21 |
| 2026-02-10 12:00 |
03:40:04.97 |
-50:38:39.3 |
HIP 17314 |
23.64 |
| 2026-02-11 00:00 |
03:40:04.60 |
-50:37:39.7 |
HIP 17314 |
24.09 |
| 2026-02-11 12:00 |
03:40:04.29 |
-50:36:39.9 |
HIP 17314 |
24.57 |
| 2026-02-12 00:00 |
03:40:04.02 |
-50:35:40.1 |
HIP 17314 |
25.08 |
| 2026-02-12 12:00 |
03:40:03.81 |
-50:34:40.2 |
HIP 17314 |
25.61 |
| 2026-02-13 00:00 |
03:40:03.65 |
-50:33:40.3 |
HIP 17314 |
26.16 |
| 2026-02-13 12:00 |
03:40:03.55 |
-50:32:40.3 |
HIP 17314 |
26.72 |
| 2026-02-14 00:00 |
03:40:03.50 |
-50:31:40.3 |
HIP 17314 |
27.31 |
| 2026-02-14 12:00 |
03:40:03.50 |
-50:30:40.2 |
HIP 17314 |
27.92 |
| 2026-02-15 00:00 |
03:40:03.55 |
-50:29:40.0 |
HIP 17314 |
28.54 |
| 2026-02-15 12:00 |
03:40:03.66 |
-50:28:39.9 |
HIP 17314 |
29.17 |
| 2026-02-16 00:00 |
03:40:03.82 |
-50:27:39.7 |
HIP 17314 |
29.82 |
| 2026-02-16 12:00 |
03:40:04.03 |
-50:26:39.4 |
HIP 17314 |
30.49 |
| 2026-02-17 00:00 |
03:40:04.30 |
-50:25:39.2 |
HIP 17314 |
31.16 |
| 2026-02-17 12:00 |
03:40:04.62 |
-50:24:38.9 |
HIP 17314 |
31.85 |
| 2026-02-18 00:00 |
03:40:04.99 |
-50:23:38.6 |
HIP 17364 |
32.26 |
| 2026-02-18 12:00 |
03:40:05.41 |
-50:22:38.3 |
HIP 17352 |
31.70 |
| 2026-02-19 00:00 |
03:40:05.89 |
-50:21:38.0 |
HIP 17352 |
31.10 |
| 2026-02-19 12:00 |
03:40:06.41 |
-50:20:37.7 |
HIP 17352 |
30.50 |
| 2026-02-20 00:00 |
03:40:06.99 |
-50:19:37.4 |
HIP 17352 |
29.93 |
| 2026-02-20 12:00 |
03:40:07.62 |
-50:18:37.1 |
HIP 17352 |
29.36 |
| 2026-02-21 00:00 |
03:40:08.31 |
-50:17:36.8 |
HIP 17352 |
28.82 |
| 2026-02-21 12:00 |
03:40:09.04 |
-50:16:36.5 |
HIP 17352 |
28.29 |
| 2026-02-22 00:00 |
03:40:09.83 |
-50:15:36.3 |
HIP 17352 |
27.78 |
| 2026-02-22 12:00 |
03:40:10.66 |
-50:14:36.1 |
HIP 17352 |
27.29 |
| 2026-02-23 00:00 |
03:40:11.55 |
-50:13:35.9 |
HIP 17352 |
26.83 |
| 2026-02-23 12:00 |
03:40:12.49 |
-50:12:35.7 |
HIP 17352 |
26.39 |
| 2026-02-24 00:00 |
03:40:13.48 |
-50:11:35.6 |
HIP 17352 |
25.97 |