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) |
| 2026-06-01 00:00 |
17:18:40.46 |
-41:42:34.5 |
HIP 84771 |
14.36 |
| 2026-06-01 12:00 |
17:18:34.96 |
-41:42:37.7 |
HIP 84771 |
15.10 |
| 2026-06-02 00:00 |
17:18:29.44 |
-41:42:40.7 |
HIP 84771 |
15.88 |
| 2026-06-02 12:00 |
17:18:23.93 |
-41:42:43.6 |
HIP 84771 |
16.68 |
| 2026-06-03 00:00 |
17:18:18.40 |
-41:42:46.2 |
HIP 84771 |
17.51 |
| 2026-06-03 12:00 |
17:18:12.87 |
-41:42:48.6 |
HIP 84771 |
18.37 |
| 2026-06-04 00:00 |
17:18:07.33 |
-41:42:50.9 |
HIP 84771 |
19.24 |
| 2026-06-04 12:00 |
17:18:01.78 |
-41:42:52.9 |
HIP 84771 |
20.13 |
| 2026-06-05 00:00 |
17:17:56.23 |
-41:42:54.8 |
HIP 84473 |
20.32 |
| 2026-06-05 12:00 |
17:17:50.68 |
-41:42:56.5 |
HIP 84473 |
19.31 |
| 2026-06-06 00:00 |
17:17:45.12 |
-41:42:57.9 |
HIP 84473 |
18.30 |
| 2026-06-06 12:00 |
17:17:39.55 |
-41:42:59.2 |
HIP 84473 |
17.30 |
| 2026-06-07 00:00 |
17:17:33.98 |
-41:43:00.3 |
HIP 84473 |
16.30 |
| 2026-06-07 12:00 |
17:17:28.41 |
-41:43:01.2 |
HIP 84473 |
15.30 |
| 2026-06-08 00:00 |
17:17:22.83 |
-41:43:01.9 |
HIP 84473 |
14.30 |
| 2026-06-08 12:00 |
17:17:17.26 |
-41:43:02.4 |
HIP 84473 |
13.31 |
| 2026-06-09 00:00 |
17:17:11.68 |
-41:43:02.7 |
HIP 84473 |
12.33 |
| 2026-06-09 12:00 |
17:17:06.09 |
-41:43:02.8 |
HIP 84473 |
11.35 |
| 2026-06-10 00:00 |
17:17:00.51 |
-41:43:02.8 |
HIP 84473 |
10.39 |
| 2026-06-10 12:00 |
17:16:54.93 |
-41:43:02.5 |
HIP 84473 |
9.44 |
| 2026-06-11 00:00 |
17:16:49.35 |
-41:43:02.0 |
HIP 84473 |
8.52 |
| 2026-06-11 12:00 |
17:16:43.76 |
-41:43:01.4 |
HIP 84473 |
7.62 |
| 2026-06-12 00:00 |
17:16:38.18 |
-41:43:00.6 |
HIP 84473 |
6.76 |
| 2026-06-12 12:00 |
17:16:32.60 |
-41:42:59.5 |
HIP 84473 |
5.96 |
| 2026-06-13 00:00 |
17:16:27.02 |
-41:42:58.3 |
HIP 84473 |
5.25 |
| 2026-06-13 12:00 |
17:16:21.44 |
-41:42:56.9 |
HIP 84473 |
4.65 |
| 2026-06-14 00:00 |
17:16:15.87 |
-41:42:55.3 |
HIP 84473 |
4.23 |
| 2026-06-14 12:00 |
17:16:10.30 |
-41:42:53.5 |
HIP 84473 |
4.04 |
| 2026-06-15 00:00 |
17:16:04.73 |
-41:42:51.5 |
HIP 84473 |
4.10 |
| 2026-06-15 12:00 |
17:15:59.17 |
-41:42:49.4 |
HIP 84473 |
4.42 |
| 2026-06-16 00:00 |
17:15:53.61 |
-41:42:47.0 |
HIP 84473 |
4.93 |
| 2026-06-16 12:00 |
17:15:48.05 |
-41:42:44.5 |
HIP 84473 |
5.59 |
| 2026-06-17 00:00 |
17:15:42.51 |
-41:42:41.7 |
HIP 84473 |
6.35 |
| 2026-06-17 12:00 |
17:15:36.97 |
-41:42:38.8 |
HIP 84473 |
7.17 |
| 2026-06-18 00:00 |
17:15:31.43 |
-41:42:35.7 |
HIP 84473 |
8.04 |
| 2026-06-18 12:00 |
17:15:25.90 |
-41:42:32.4 |
HIP 84473 |
8.95 |
| 2026-06-19 00:00 |
17:15:20.38 |
-41:42:29.0 |
HIP 84473 |
9.88 |
| 2026-06-19 12:00 |
17:15:14.87 |
-41:42:25.3 |
HIP 84473 |
10.82 |
| 2026-06-20 00:00 |
17:15:09.37 |
-41:42:21.5 |
HIP 84473 |
11.78 |
| 2026-06-20 12:00 |
17:15:03.87 |
-41:42:17.5 |
HIP 84473 |
12.74 |
| 2026-06-21 00:00 |
17:14:58.39 |
-41:42:13.3 |
HIP 84473 |
13.71 |
| 2026-06-21 12:00 |
17:14:52.92 |
-41:42:08.9 |
HIP 84334 |
14.39 |
| 2026-06-22 00:00 |
17:14:47.45 |
-41:42:04.4 |
HIP 84334 |
14.05 |