メタデータ
| 項目 |
値 |
| Designation |
C/2010 F1 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2009-11-10T13:33:39.127680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:41Z |
| Obs used |
301 |
| NEO |
- |
| M1 |
7.000 |
| K1 |
15.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-04-02.0000000 |
| e |
0.94753492 |
| q (au) |
3.587530 |
| a (au) |
68.379381 |
| i (deg) |
64.935721 |
| Ω (om, deg) |
344.389791 |
| ω (w, deg) |
127.512149 |
| M (ma, deg) |
0.248275 |
等級
散乱 + 全体線形
$$
M_a = (13.031 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.031 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.999 |
| 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
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 2010-02-20 |
2012-07-27 |
-25.1690 |
+14.600 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
12:09:50.00 |
-86:58:11.1 |
HIP 59086 |
12.79 |
| 2026-05-12 12:00 |
12:09:07.89 |
-86:57:32.3 |
HIP 59086 |
12.06 |
| 2026-05-13 00:00 |
12:08:26.48 |
-86:56:53.1 |
HIP 59086 |
11.34 |
| 2026-05-13 12:00 |
12:07:45.80 |
-86:56:13.4 |
HIP 59086 |
10.63 |
| 2026-05-14 00:00 |
12:07:05.84 |
-86:55:33.4 |
HIP 59086 |
9.95 |
| 2026-05-14 12:00 |
12:06:26.59 |
-86:54:53.0 |
HIP 59086 |
9.29 |
| 2026-05-15 00:00 |
12:05:48.06 |
-86:54:12.3 |
HIP 59086 |
8.65 |
| 2026-05-15 12:00 |
12:05:10.25 |
-86:53:31.1 |
HIP 59086 |
8.06 |
| 2026-05-16 00:00 |
12:04:33.15 |
-86:52:49.6 |
HIP 59086 |
7.50 |
| 2026-05-16 12:00 |
12:03:56.76 |
-86:52:07.7 |
HIP 59086 |
7.00 |
| 2026-05-17 00:00 |
12:03:21.09 |
-86:51:25.5 |
HIP 59086 |
6.57 |
| 2026-05-17 12:00 |
12:02:46.13 |
-86:50:42.9 |
HIP 59086 |
6.22 |
| 2026-05-18 00:00 |
12:02:11.87 |
-86:50:00.0 |
HIP 59086 |
5.96 |
| 2026-05-18 12:00 |
12:01:38.32 |
-86:49:16.8 |
HIP 59086 |
5.81 |
| 2026-05-19 00:00 |
12:01:05.46 |
-86:48:33.2 |
HIP 59086 |
5.78 |
| 2026-05-19 12:00 |
12:00:33.31 |
-86:47:49.3 |
HIP 59086 |
5.87 |
| 2026-05-20 00:00 |
12:00:01.86 |
-86:47:05.1 |
HIP 59086 |
6.08 |
| 2026-05-20 12:00 |
11:59:31.09 |
-86:46:20.7 |
HIP 59086 |
6.38 |
| 2026-05-21 00:00 |
11:59:01.02 |
-86:45:35.9 |
HIP 59086 |
6.78 |
| 2026-05-21 12:00 |
11:58:31.63 |
-86:44:50.8 |
HIP 59086 |
7.24 |
| 2026-05-22 00:00 |
11:58:02.92 |
-86:44:05.5 |
HIP 59086 |
7.77 |
| 2026-05-22 12:00 |
11:57:34.89 |
-86:43:19.9 |
HIP 59086 |
8.35 |
| 2026-05-23 00:00 |
11:57:07.53 |
-86:42:34.0 |
HIP 59086 |
8.97 |
| 2026-05-23 12:00 |
11:56:40.83 |
-86:41:47.9 |
HIP 59086 |
9.63 |
| 2026-05-24 00:00 |
11:56:14.81 |
-86:41:01.5 |
HIP 59086 |
10.31 |
| 2026-05-24 12:00 |
11:55:49.44 |
-86:40:14.9 |
HIP 59086 |
11.01 |
| 2026-05-25 00:00 |
11:55:24.72 |
-86:39:28.0 |
HIP 59086 |
11.72 |
| 2026-05-25 12:00 |
11:55:00.66 |
-86:38:41.0 |
HIP 59086 |
12.45 |
| 2026-05-26 00:00 |
11:54:37.24 |
-86:37:53.6 |
HIP 59086 |
13.20 |
| 2026-05-26 12:00 |
11:54:14.46 |
-86:37:06.1 |
HIP 59086 |
13.95 |
| 2026-05-27 00:00 |
11:53:52.31 |
-86:36:18.4 |
HIP 59086 |
14.71 |
| 2026-05-27 12:00 |
11:53:30.79 |
-86:35:30.4 |
HIP 59086 |
15.48 |
| 2026-05-28 00:00 |
11:53:09.90 |
-86:34:42.3 |
HIP 59086 |
16.26 |
| 2026-05-28 12:00 |
11:52:49.63 |
-86:33:53.9 |
HIP 59086 |
17.04 |
| 2026-05-29 00:00 |
11:52:29.97 |
-86:33:05.4 |
HIP 59086 |
17.82 |
| 2026-05-29 12:00 |
11:52:10.92 |
-86:32:16.7 |
HIP 59086 |
18.61 |
| 2026-05-30 00:00 |
11:51:52.48 |
-86:31:27.8 |
HIP 59086 |
19.41 |
| 2026-05-30 12:00 |
11:51:34.64 |
-86:30:38.8 |
HIP 59086 |
20.20 |
| 2026-05-31 00:00 |
11:51:17.39 |
-86:29:49.6 |
HIP 59086 |
21.00 |
| 2026-05-31 12:00 |
11:51:00.72 |
-86:29:00.2 |
HIP 59086 |
21.80 |
| 2026-06-01 00:00 |
11:50:44.65 |
-86:28:10.7 |
HIP 59086 |
22.60 |
| 2026-06-01 12:00 |
11:50:29.15 |
-86:27:21.0 |
HIP 59086 |
23.41 |
| 2026-06-02 00:00 |
11:50:14.22 |
-86:26:31.2 |
HIP 59086 |
24.21 |