メタデータ
| 項目 |
値 |
| Designation |
C/2011 L6 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2011-01-22T18:57:09.518400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:52Z |
| Obs used |
56 |
| NEO |
- |
| M1 |
13.200 |
| K1 |
4.500 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2011-08-20.0000000 |
| e |
1.00373776 |
| q (au) |
6.787629 |
| a (au) |
-1815.962524 |
| i (deg) |
171.456247 |
| Ω (om, deg) |
214.482658 |
| ω (w, deg) |
331.598726 |
| M (ma, deg) |
0.002665 |
等級
散乱 + 全体線形
$$
M_a = (9.044 + 3.303\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
9.044 |
| n |
3.303 |
| gf |
1.000 |
| gb |
-0.951 |
| k |
1.000 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
08:11:53.00 |
+28:51:14.4 |
HIP 40192 |
9.66 |
| 2026-03-26 12:00 |
08:11:50.41 |
+28:51:13.3 |
HIP 40192 |
10.21 |
| 2026-03-27 00:00 |
08:11:47.86 |
+28:51:11.9 |
HIP 40192 |
10.76 |
| 2026-03-27 12:00 |
08:11:45.34 |
+28:51:10.5 |
HIP 40192 |
11.30 |
| 2026-03-28 00:00 |
08:11:42.87 |
+28:51:08.9 |
HIP 40192 |
11.83 |
| 2026-03-28 12:00 |
08:11:40.43 |
+28:51:07.1 |
HIP 40192 |
12.35 |
| 2026-03-29 00:00 |
08:11:38.02 |
+28:51:05.2 |
HIP 40192 |
12.86 |
| 2026-03-29 12:00 |
08:11:35.66 |
+28:51:03.2 |
HIP 40192 |
13.37 |
| 2026-03-30 00:00 |
08:11:33.34 |
+28:51:01.1 |
HIP 40192 |
13.87 |
| 2026-03-30 12:00 |
08:11:31.05 |
+28:50:58.8 |
HIP 40192 |
14.36 |
| 2026-03-31 00:00 |
08:11:28.80 |
+28:50:56.4 |
HIP 40192 |
14.85 |
| 2026-03-31 12:00 |
08:11:26.59 |
+28:50:53.8 |
HIP 40192 |
15.32 |
| 2026-04-01 00:00 |
08:11:24.42 |
+28:50:51.1 |
HIP 40192 |
15.79 |
| 2026-04-01 12:00 |
08:11:22.28 |
+28:50:48.3 |
HIP 40192 |
16.25 |
| 2026-04-02 00:00 |
08:11:20.19 |
+28:50:45.3 |
HIP 40192 |
16.70 |
| 2026-04-02 12:00 |
08:11:18.13 |
+28:50:42.2 |
HIP 40192 |
17.15 |
| 2026-04-03 00:00 |
08:11:16.11 |
+28:50:39.0 |
HIP 40192 |
17.58 |
| 2026-04-03 12:00 |
08:11:14.13 |
+28:50:35.7 |
HIP 40192 |
18.01 |
| 2026-04-04 00:00 |
08:11:12.19 |
+28:50:32.2 |
HIP 40192 |
18.43 |
| 2026-04-04 12:00 |
08:11:10.29 |
+28:50:28.6 |
HIP 40192 |
18.84 |
| 2026-04-05 00:00 |
08:11:08.42 |
+28:50:24.8 |
HIP 40192 |
19.25 |
| 2026-04-05 12:00 |
08:11:06.60 |
+28:50:21.0 |
HIP 40192 |
19.64 |
| 2026-04-06 00:00 |
08:11:04.81 |
+28:50:17.0 |
HIP 40192 |
20.03 |
| 2026-04-06 12:00 |
08:11:03.06 |
+28:50:12.9 |
HIP 40192 |
20.41 |
| 2026-04-07 00:00 |
08:11:01.35 |
+28:50:08.6 |
HIP 40192 |
20.78 |
| 2026-04-07 12:00 |
08:10:59.68 |
+28:50:04.2 |
HIP 40192 |
21.14 |
| 2026-04-08 00:00 |
08:10:58.05 |
+28:49:59.8 |
HIP 40192 |
21.50 |
| 2026-04-08 12:00 |
08:10:56.46 |
+28:49:55.1 |
HIP 39985 |
21.75 |
| 2026-04-09 00:00 |
08:10:54.91 |
+28:49:50.4 |
HIP 39985 |
21.62 |
| 2026-04-09 12:00 |
08:10:53.40 |
+28:49:45.5 |
HIP 39985 |
21.50 |
| 2026-04-10 00:00 |
08:10:51.92 |
+28:49:40.5 |
HIP 39985 |
21.39 |
| 2026-04-10 12:00 |
08:10:50.49 |
+28:49:35.4 |
HIP 39985 |
21.29 |
| 2026-04-11 00:00 |
08:10:49.09 |
+28:49:30.2 |
HIP 39985 |
21.20 |
| 2026-04-11 12:00 |
08:10:47.74 |
+28:49:24.8 |
HIP 39985 |
21.12 |
| 2026-04-12 00:00 |
08:10:46.42 |
+28:49:19.4 |
HIP 39985 |
21.05 |
| 2026-04-12 12:00 |
08:10:45.14 |
+28:49:13.8 |
HIP 39985 |
20.99 |
| 2026-04-13 00:00 |
08:10:43.90 |
+28:49:08.1 |
HIP 39985 |
20.94 |
| 2026-04-13 12:00 |
08:10:42.70 |
+28:49:02.3 |
HIP 39985 |
20.90 |
| 2026-04-14 00:00 |
08:10:41.54 |
+28:48:56.3 |
HIP 39985 |
20.87 |
| 2026-04-14 12:00 |
08:10:40.42 |
+28:48:50.3 |
HIP 39985 |
20.85 |
| 2026-04-15 00:00 |
08:10:39.34 |
+28:48:44.1 |
HIP 39985 |
20.84 |
| 2026-04-15 12:00 |
08:10:38.30 |
+28:48:37.8 |
HIP 39985 |
20.84 |
| 2026-04-16 00:00 |
08:10:37.30 |
+28:48:31.4 |
HIP 39985 |
20.84 |