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) |
| 2026-06-01 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 |
| 2026-06-02 12:00 |
11:49:59.86 |
-86:25:41.2 |
HIP 59086 |
25.02 |
| 2026-06-03 00:00 |
11:49:46.07 |
-86:24:51.1 |
HIP 59086 |
25.83 |
| 2026-06-03 12:00 |
11:49:32.83 |
-86:24:00.9 |
HIP 59086 |
26.64 |
| 2026-06-04 00:00 |
11:49:20.14 |
-86:23:10.6 |
HIP 59086 |
27.45 |
| 2026-06-04 12:00 |
11:49:08.01 |
-86:22:20.1 |
HIP 59086 |
28.26 |
| 2026-06-05 00:00 |
11:48:56.41 |
-86:21:29.6 |
HIP 59086 |
29.07 |
| 2026-06-05 12:00 |
11:48:45.35 |
-86:20:38.9 |
HIP 59086 |
29.88 |
| 2026-06-06 00:00 |
11:48:34.83 |
-86:19:48.1 |
HIP 59086 |
30.70 |
| 2026-06-06 12:00 |
11:48:24.83 |
-86:18:57.3 |
HIP 59086 |
31.51 |
| 2026-06-07 00:00 |
11:48:15.36 |
-86:18:06.3 |
HIP 59086 |
32.32 |
| 2026-06-07 12:00 |
11:48:06.40 |
-86:17:15.3 |
HIP 59086 |
33.14 |
| 2026-06-08 00:00 |
11:47:57.96 |
-86:16:24.1 |
HIP 59086 |
33.95 |
| 2026-06-08 12:00 |
11:47:50.02 |
-86:15:32.9 |
HIP 59086 |
34.76 |
| 2026-06-09 00:00 |
11:47:42.59 |
-86:14:41.7 |
HIP 59059 |
34.17 |
| 2026-06-09 12:00 |
11:47:35.65 |
-86:13:50.3 |
HIP 59059 |
33.57 |
| 2026-06-10 00:00 |
11:47:29.21 |
-86:12:58.9 |
HIP 59059 |
32.98 |
| 2026-06-10 12:00 |
11:47:23.25 |
-86:12:07.5 |
HIP 59059 |
32.39 |
| 2026-06-11 00:00 |
11:47:17.78 |
-86:11:16.0 |
HIP 59059 |
31.81 |
| 2026-06-11 12:00 |
11:47:12.79 |
-86:10:24.4 |
HIP 59059 |
31.24 |
| 2026-06-12 00:00 |
11:47:08.28 |
-86:09:32.8 |
HIP 59059 |
30.67 |
| 2026-06-12 12:00 |
11:47:04.23 |
-86:08:41.2 |
HIP 59059 |
30.11 |
| 2026-06-13 00:00 |
11:47:00.65 |
-86:07:49.5 |
HIP 59059 |
29.57 |
| 2026-06-13 12:00 |
11:46:57.53 |
-86:06:57.8 |
HIP 59059 |
29.03 |
| 2026-06-14 00:00 |
11:46:54.86 |
-86:06:06.1 |
HIP 59059 |
28.50 |
| 2026-06-14 12:00 |
11:46:52.65 |
-86:05:14.3 |
HIP 59059 |
27.98 |
| 2026-06-15 00:00 |
11:46:50.88 |
-86:04:22.6 |
HIP 59059 |
27.48 |
| 2026-06-15 12:00 |
11:46:49.56 |
-86:03:30.8 |
HIP 59059 |
26.98 |
| 2026-06-16 00:00 |
11:46:48.67 |
-86:02:39.0 |
HIP 59059 |
26.50 |
| 2026-06-16 12:00 |
11:46:48.21 |
-86:01:47.3 |
HIP 59059 |
26.03 |
| 2026-06-17 00:00 |
11:46:48.18 |
-86:00:55.5 |
HIP 59059 |
25.58 |
| 2026-06-17 12:00 |
11:46:48.57 |
-86:00:03.7 |
HIP 59059 |
25.14 |
| 2026-06-18 00:00 |
11:46:49.38 |
-85:59:12.0 |
HIP 59059 |
24.72 |
| 2026-06-18 12:00 |
11:46:50.60 |
-85:58:20.3 |
HIP 59059 |
24.31 |
| 2026-06-19 00:00 |
11:46:52.24 |
-85:57:28.6 |
HIP 59059 |
23.92 |
| 2026-06-19 12:00 |
11:46:54.27 |
-85:56:36.9 |
HIP 59059 |
23.55 |
| 2026-06-20 00:00 |
11:46:56.70 |
-85:55:45.2 |
HIP 59059 |
23.20 |
| 2026-06-20 12:00 |
11:46:59.53 |
-85:54:53.6 |
HIP 59059 |
22.87 |
| 2026-06-21 00:00 |
11:47:02.75 |
-85:54:02.0 |
HIP 59059 |
22.57 |
| 2026-06-21 12:00 |
11:47:06.35 |
-85:53:10.5 |
HIP 59059 |
22.28 |
| 2026-06-22 00:00 |
11:47:10.33 |
-85:52:19.0 |
HIP 59059 |
22.02 |