メタデータ
| 項目 |
値 |
| Designation |
C/2013 V1 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-04-21T05:35:23.812800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:42Z |
| Obs used |
2087 |
| NEO |
- |
| M1 |
10.900 |
| K1 |
8.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2014-02-11.0000000 |
| e |
1.00142704 |
| q (au) |
1.660846 |
| a (au) |
-1163.839039 |
| i (deg) |
65.310081 |
| Ω (om, deg) |
72.810325 |
| ω (w, deg) |
48.034651 |
| M (ma, deg) |
-0.001719 |
等級
散乱 + 全体線形
$$
M_a = (11.904 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.904 |
| 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 |
| 2013-11-04 |
2014-01-17 |
+3.0384 |
-1.115 |
| 2014-01-17 |
2014-04-18 |
-6.1527 |
+1.577 |
| 2014-04-23 |
2014-07-24 |
+15.9349 |
-3.849 |
| 2014-07-24 |
2015-01-19 |
-2.8363 |
+2.424 |
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) |
| 2026-03-26 00:00 |
17:27:00.72 |
-41:10:08.5 |
HIP 85284 |
18.97 |
| 2026-03-26 12:00 |
17:26:59.64 |
-41:10:30.9 |
HIP 85284 |
18.60 |
| 2026-03-27 00:00 |
17:26:58.51 |
-41:10:53.4 |
HIP 85284 |
18.22 |
| 2026-03-27 12:00 |
17:26:57.33 |
-41:11:15.7 |
HIP 85284 |
17.84 |
| 2026-03-28 00:00 |
17:26:56.11 |
-41:11:38.1 |
HIP 85284 |
17.45 |
| 2026-03-28 12:00 |
17:26:54.84 |
-41:12:00.3 |
HIP 85284 |
17.06 |
| 2026-03-29 00:00 |
17:26:53.52 |
-41:12:22.5 |
HIP 85284 |
16.66 |
| 2026-03-29 12:00 |
17:26:52.15 |
-41:12:44.6 |
HIP 85284 |
16.26 |
| 2026-03-30 00:00 |
17:26:50.74 |
-41:13:06.6 |
HIP 85284 |
15.85 |
| 2026-03-30 12:00 |
17:26:49.27 |
-41:13:28.6 |
HIP 85284 |
15.44 |
| 2026-03-31 00:00 |
17:26:47.76 |
-41:13:50.5 |
HIP 85284 |
15.03 |
| 2026-03-31 12:00 |
17:26:46.20 |
-41:14:12.3 |
HIP 85284 |
14.61 |
| 2026-04-01 00:00 |
17:26:44.60 |
-41:14:34.1 |
HIP 85284 |
14.18 |
| 2026-04-01 12:00 |
17:26:42.95 |
-41:14:55.8 |
HIP 85284 |
13.75 |
| 2026-04-02 00:00 |
17:26:41.25 |
-41:15:17.4 |
HIP 85284 |
13.32 |
| 2026-04-02 12:00 |
17:26:39.50 |
-41:15:38.9 |
HIP 85284 |
12.88 |
| 2026-04-03 00:00 |
17:26:37.71 |
-41:16:00.3 |
HIP 85284 |
12.44 |
| 2026-04-03 12:00 |
17:26:35.87 |
-41:16:21.7 |
HIP 85284 |
11.99 |
| 2026-04-04 00:00 |
17:26:33.98 |
-41:16:42.9 |
HIP 85284 |
11.54 |
| 2026-04-04 12:00 |
17:26:32.04 |
-41:17:04.1 |
HIP 85284 |
11.09 |
| 2026-04-05 00:00 |
17:26:30.06 |
-41:17:25.2 |
HIP 85284 |
10.63 |
| 2026-04-05 12:00 |
17:26:28.04 |
-41:17:46.3 |
HIP 85284 |
10.17 |
| 2026-04-06 00:00 |
17:26:25.96 |
-41:18:07.2 |
HIP 85284 |
9.71 |
| 2026-04-06 12:00 |
17:26:23.84 |
-41:18:28.0 |
HIP 85284 |
9.24 |
| 2026-04-07 00:00 |
17:26:21.68 |
-41:18:48.8 |
HIP 85284 |
8.78 |
| 2026-04-07 12:00 |
17:26:19.47 |
-41:19:09.4 |
HIP 85284 |
8.31 |
| 2026-04-08 00:00 |
17:26:17.21 |
-41:19:30.0 |
HIP 85284 |
7.85 |
| 2026-04-08 12:00 |
17:26:14.91 |
-41:19:50.4 |
HIP 85284 |
7.39 |
| 2026-04-09 00:00 |
17:26:12.56 |
-41:20:10.8 |
HIP 85284 |
6.93 |
| 2026-04-09 12:00 |
17:26:10.17 |
-41:20:31.1 |
HIP 85284 |
6.48 |
| 2026-04-10 00:00 |
17:26:07.73 |
-41:20:51.2 |
HIP 85284 |
6.05 |
| 2026-04-10 12:00 |
17:26:05.25 |
-41:21:11.3 |
HIP 85284 |
5.62 |
| 2026-04-11 00:00 |
17:26:02.72 |
-41:21:31.3 |
HIP 85284 |
5.22 |
| 2026-04-11 12:00 |
17:26:00.15 |
-41:21:51.1 |
HIP 85284 |
4.84 |
| 2026-04-12 00:00 |
17:25:57.53 |
-41:22:10.8 |
HIP 85293 |
4.36 |
| 2026-04-12 12:00 |
17:25:54.87 |
-41:22:30.5 |
HIP 85293 |
3.81 |
| 2026-04-13 00:00 |
17:25:52.16 |
-41:22:50.0 |
HIP 85293 |
3.28 |
| 2026-04-13 12:00 |
17:25:49.41 |
-41:23:09.4 |
HIP 85293 |
2.77 |
| 2026-04-14 00:00 |
17:25:46.62 |
-41:23:28.7 |
HIP 85293 |
2.32 |
| 2026-04-14 12:00 |
17:25:43.78 |
-41:23:47.9 |
HIP 85293 |
1.96 |
| 2026-04-15 00:00 |
17:25:40.90 |
-41:24:07.0 |
HIP 85293 |
1.75 |
| 2026-04-15 12:00 |
17:25:37.98 |
-41:24:25.9 |
HIP 85293 |
1.76 |
| 2026-04-16 00:00 |
17:25:35.02 |
-41:24:44.8 |
HIP 85293 |
2.00 |