C/2010 U3 (Boattini)
メタデータ
| 項目 |
値 |
| Designation |
C/2010 U3 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2019-02-26T02:57:05.869440Z |
| Orbit solution date (soln_date, UTC) |
2023-05-10T17:42:22Z |
| Obs used |
4354 |
| NEO |
- |
| M1 |
6.300 |
| K1 |
6.250 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2017-06-18.0000000 |
| e |
1.00085475 |
| q (au) |
8.445819 |
| a (au) |
-9881.022043 |
| i (deg) |
55.512084 |
| Ω (om, deg) |
43.072839 |
| ω (w, deg) |
88.065133 |
| M (ma, deg) |
-0.000620 |
等級
散乱 + 全体線形
$$
M_a = (4.728 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.728 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.962 |
| k |
0.800 |
| 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 |
| 2005-11-05 |
2010-11-28 |
+3.2013 |
-4.882 |
| 2010-11-28 |
2014-12-20 |
-9.5815 |
+10.967 |
| 2014-12-20 |
2016-01-14 |
-1.5209 |
+2.101 |
| 2016-01-14 |
2017-01-27 |
-14.7858 |
+15.392 |
| 2017-01-27 |
2019-02-26 |
+8.0171 |
-7.205 |
| 2019-02-26 |
2021-03-05 |
+65.7270 |
-61.376 |
| 2021-03-05 |
2022-12-25 |
-18.5573 |
+20.893 |
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) |
| 2026-02-03 00:00 |
14:50:46.95 |
-12:44:45.0 |
HIP 72811 |
31.79 |
| 2026-02-03 12:00 |
14:50:47.61 |
-12:45:04.9 |
HIP 72811 |
31.70 |
| 2026-02-04 00:00 |
14:50:48.20 |
-12:45:24.5 |
HIP 72811 |
31.63 |
| 2026-02-04 12:00 |
14:50:48.74 |
-12:45:43.8 |
HIP 72811 |
31.57 |
| 2026-02-05 00:00 |
14:50:49.21 |
-12:46:02.9 |
HIP 72811 |
31.53 |
| 2026-02-05 12:00 |
14:50:49.62 |
-12:46:21.7 |
HIP 72811 |
31.51 |
| 2026-02-06 00:00 |
14:50:49.97 |
-12:46:40.3 |
HIP 72811 |
31.50 |
| 2026-02-06 12:00 |
14:50:50.25 |
-12:46:58.5 |
HIP 72811 |
31.52 |
| 2026-02-07 00:00 |
14:50:50.47 |
-12:47:16.6 |
HIP 72811 |
31.54 |
| 2026-02-07 12:00 |
14:50:50.63 |
-12:47:34.3 |
HIP 72811 |
31.59 |
| 2026-02-08 00:00 |
14:50:50.72 |
-12:47:51.8 |
HIP 72811 |
31.65 |
| 2026-02-08 12:00 |
14:50:50.75 |
-12:48:09.0 |
HIP 72811 |
31.73 |
| 2026-02-09 00:00 |
14:50:50.72 |
-12:48:26.0 |
HIP 72811 |
31.82 |
| 2026-02-09 12:00 |
14:50:50.62 |
-12:48:42.7 |
HIP 72811 |
31.93 |
| 2026-02-10 00:00 |
14:50:50.46 |
-12:48:59.1 |
HIP 72811 |
32.05 |
| 2026-02-10 12:00 |
14:50:50.24 |
-12:49:15.2 |
HIP 72811 |
32.19 |
| 2026-02-11 00:00 |
14:50:49.95 |
-12:49:31.1 |
HIP 72811 |
32.35 |
| 2026-02-11 12:00 |
14:50:49.60 |
-12:49:46.8 |
HIP 72811 |
32.52 |
| 2026-02-12 00:00 |
14:50:49.19 |
-12:50:02.2 |
HIP 72811 |
32.70 |
| 2026-02-12 12:00 |
14:50:48.71 |
-12:50:17.3 |
HIP 72811 |
32.90 |
| 2026-02-13 00:00 |
14:50:48.17 |
-12:50:32.1 |
HIP 72811 |
33.11 |
| 2026-02-13 12:00 |
14:50:47.57 |
-12:50:46.7 |
HIP 72442 |
33.22 |
| 2026-02-14 00:00 |
14:50:46.90 |
-12:51:01.0 |
HIP 72442 |
32.96 |
| 2026-02-14 12:00 |
14:50:46.17 |
-12:51:15.1 |
HIP 72442 |
32.69 |
| 2026-02-15 00:00 |
14:50:45.37 |
-12:51:28.9 |
HIP 72442 |
32.41 |
| 2026-02-15 12:00 |
14:50:44.51 |
-12:51:42.4 |
HIP 72442 |
32.12 |
| 2026-02-16 00:00 |
14:50:43.59 |
-12:51:55.7 |
HIP 72442 |
31.81 |
| 2026-02-16 12:00 |
14:50:42.60 |
-12:52:08.7 |
HIP 72442 |
31.50 |
| 2026-02-17 00:00 |
14:50:41.55 |
-12:52:21.5 |
HIP 72442 |
31.17 |
| 2026-02-17 12:00 |
14:50:40.44 |
-12:52:34.0 |
HIP 72442 |
30.83 |
| 2026-02-18 00:00 |
14:50:39.26 |
-12:52:46.3 |
HIP 72442 |
30.48 |
| 2026-02-18 12:00 |
14:50:38.02 |
-12:52:58.3 |
HIP 72442 |
30.12 |
| 2026-02-19 00:00 |
14:50:36.72 |
-12:53:10.0 |
HIP 72442 |
29.75 |
| 2026-02-19 12:00 |
14:50:35.35 |
-12:53:21.5 |
HIP 72442 |
29.37 |
| 2026-02-20 00:00 |
14:50:33.93 |
-12:53:32.8 |
HIP 72442 |
28.97 |
| 2026-02-20 12:00 |
14:50:32.43 |
-12:53:43.8 |
HIP 72442 |
28.56 |
| 2026-02-21 00:00 |
14:50:30.88 |
-12:53:54.5 |
HIP 72442 |
28.15 |
| 2026-02-21 12:00 |
14:50:29.26 |
-12:54:05.0 |
HIP 72442 |
27.72 |
| 2026-02-22 00:00 |
14:50:27.58 |
-12:54:15.3 |
HIP 72442 |
27.27 |
| 2026-02-22 12:00 |
14:50:25.84 |
-12:54:25.3 |
HIP 72442 |
26.82 |
| 2026-02-23 00:00 |
14:50:24.04 |
-12:54:35.0 |
HIP 72442 |
26.36 |
| 2026-02-23 12:00 |
14:50:22.17 |
-12:54:44.6 |
HIP 72442 |
25.88 |
| 2026-02-24 00:00 |
14:50:20.25 |
-12:54:53.8 |
HIP 72442 |
25.40 |