メタデータ
| 項目 |
値 |
| Designation |
C/2013 F1 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2012-12-02T15:47:47.538240Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:32Z |
| Obs used |
274 |
| NEO |
- |
| M1 |
15.100 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-04-14.0000000 |
| e |
1.00279701 |
| q (au) |
1.859992 |
| a (au) |
-664.991992 |
| i (deg) |
79.687882 |
| Ω (om, deg) |
30.122757 |
| ω (w, deg) |
92.003330 |
| M (ma, deg) |
0.007606 |
等級
散乱 + 全体線形
$$
M_a = (14.724 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.724 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.996 |
| δ90 |
9.999 |
| 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 |
11:28:00.27 |
-72:02:59.4 |
HIP 55933 |
1.60 |
| 2026-06-01 12:00 |
11:27:57.54 |
-72:02:05.4 |
HIP 55933 |
2.28 |
| 2026-06-02 00:00 |
11:27:54.92 |
-72:01:11.4 |
HIP 55933 |
3.09 |
| 2026-06-02 12:00 |
11:27:52.40 |
-72:00:17.3 |
HIP 55933 |
3.95 |
| 2026-06-03 00:00 |
11:27:49.98 |
-71:59:23.3 |
HIP 55933 |
4.83 |
| 2026-06-03 12:00 |
11:27:47.66 |
-71:58:29.2 |
HIP 55933 |
5.73 |
| 2026-06-04 00:00 |
11:27:45.44 |
-71:57:35.1 |
HIP 55933 |
6.63 |
| 2026-06-04 12:00 |
11:27:43.33 |
-71:56:41.0 |
HIP 55933 |
7.53 |
| 2026-06-05 00:00 |
11:27:41.31 |
-71:55:46.9 |
HIP 55933 |
8.44 |
| 2026-06-05 12:00 |
11:27:39.40 |
-71:54:52.8 |
HIP 55933 |
9.35 |
| 2026-06-06 00:00 |
11:27:37.58 |
-71:53:58.7 |
HIP 55933 |
10.26 |
| 2026-06-06 12:00 |
11:27:35.87 |
-71:53:04.6 |
HIP 55933 |
11.17 |
| 2026-06-07 00:00 |
11:27:34.26 |
-71:52:10.5 |
HIP 55933 |
12.08 |
| 2026-06-07 12:00 |
11:27:32.74 |
-71:51:16.5 |
HIP 55712 |
12.34 |
| 2026-06-08 00:00 |
11:27:31.33 |
-71:50:22.4 |
HIP 55712 |
12.07 |
| 2026-06-08 12:00 |
11:27:30.02 |
-71:49:28.4 |
HIP 55712 |
11.88 |
| 2026-06-09 00:00 |
11:27:28.80 |
-71:48:34.4 |
HIP 55712 |
11.76 |
| 2026-06-09 12:00 |
11:27:27.69 |
-71:47:40.5 |
HIP 55712 |
11.71 |
| 2026-06-10 00:00 |
11:27:26.67 |
-71:46:46.6 |
HIP 55712 |
11.75 |
| 2026-06-10 12:00 |
11:27:25.76 |
-71:45:52.7 |
HIP 55712 |
11.86 |
| 2026-06-11 00:00 |
11:27:24.94 |
-71:44:58.9 |
HIP 55712 |
12.04 |
| 2026-06-11 12:00 |
11:27:24.22 |
-71:44:05.1 |
HIP 55712 |
12.29 |
| 2026-06-12 00:00 |
11:27:23.60 |
-71:43:11.3 |
HIP 55712 |
12.61 |
| 2026-06-12 12:00 |
11:27:23.08 |
-71:42:17.7 |
HIP 55712 |
12.99 |
| 2026-06-13 00:00 |
11:27:22.66 |
-71:41:24.1 |
HIP 55712 |
13.43 |
| 2026-06-13 12:00 |
11:27:22.33 |
-71:40:30.6 |
HIP 55712 |
13.91 |
| 2026-06-14 00:00 |
11:27:22.10 |
-71:39:37.1 |
HIP 55712 |
14.44 |
| 2026-06-14 12:00 |
11:27:21.97 |
-71:38:43.7 |
HIP 55712 |
15.00 |
| 2026-06-15 00:00 |
11:27:21.94 |
-71:37:50.4 |
HIP 55712 |
15.60 |
| 2026-06-15 12:00 |
11:27:22.00 |
-71:36:57.2 |
HIP 55712 |
16.24 |
| 2026-06-16 00:00 |
11:27:22.16 |
-71:36:04.1 |
HIP 55712 |
16.90 |
| 2026-06-16 12:00 |
11:27:22.42 |
-71:35:11.1 |
HIP 55712 |
17.58 |
| 2026-06-17 00:00 |
11:27:22.77 |
-71:34:18.1 |
HIP 55712 |
18.28 |
| 2026-06-17 12:00 |
11:27:23.21 |
-71:33:25.3 |
HIP 55712 |
19.00 |
| 2026-06-18 00:00 |
11:27:23.75 |
-71:32:32.6 |
HIP 55712 |
19.74 |
| 2026-06-18 12:00 |
11:27:24.39 |
-71:31:40.0 |
HIP 55712 |
20.49 |
| 2026-06-19 00:00 |
11:27:25.12 |
-71:30:47.5 |
HIP 55712 |
21.25 |
| 2026-06-19 12:00 |
11:27:25.94 |
-71:29:55.2 |
HIP 55712 |
22.03 |
| 2026-06-20 00:00 |
11:27:26.86 |
-71:29:02.9 |
HIP 55980 |
22.41 |
| 2026-06-20 12:00 |
11:27:27.87 |
-71:28:10.8 |
HIP 55980 |
21.55 |
| 2026-06-21 00:00 |
11:27:28.97 |
-71:27:18.8 |
HIP 55980 |
20.68 |
| 2026-06-21 12:00 |
11:27:30.17 |
-71:26:27.0 |
HIP 55980 |
19.82 |
| 2026-06-22 00:00 |
11:27:31.45 |
-71:25:35.3 |
HIP 55980 |
18.95 |