メタデータ
| 項目 |
値 |
| Designation |
C/2010 J1 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-02-04T19:40:22.028160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:43Z |
| Obs used |
605 |
| NEO |
- |
| M1 |
11.400 |
| K1 |
15.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2010-05-23.0000000 |
| e |
0.95382789 |
| q (au) |
1.695658 |
| a (au) |
36.724723 |
| i (deg) |
134.384945 |
| Ω (om, deg) |
254.813387 |
| ω (w, deg) |
333.109117 |
| M (ma, deg) |
0.474658 |
等級
散乱 + 全体線形
$$
M_a = (10.988 + 5.711\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.988 |
| n |
5.711 |
| gf |
0.973 |
| gb |
-0.502 |
| k |
1.000 |
| δ90 |
9.986 |
| 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) |
| 2026-07-29 00:00 |
08:08:58.79 |
+51:46:02.5 |
HIP 39847 |
16.38 |
| 2026-07-29 12:00 |
08:09:04.21 |
+51:45:54.7 |
HIP 39847 |
16.52 |
| 2026-07-30 00:00 |
08:09:09.62 |
+51:45:47.2 |
HIP 39847 |
16.72 |
| 2026-07-30 12:00 |
08:09:15.03 |
+51:45:39.9 |
HIP 39847 |
16.95 |
| 2026-07-31 00:00 |
08:09:20.44 |
+51:45:32.8 |
HIP 39847 |
17.23 |
| 2026-07-31 12:00 |
08:09:25.83 |
+51:45:26.0 |
HIP 39847 |
17.55 |
| 2026-08-01 00:00 |
08:09:31.22 |
+51:45:19.4 |
HIP 39847 |
17.90 |
| 2026-08-01 12:00 |
08:09:36.60 |
+51:45:13.1 |
HIP 39847 |
18.29 |
| 2026-08-02 00:00 |
08:09:41.98 |
+51:45:06.9 |
HIP 39847 |
18.71 |
| 2026-08-02 12:00 |
08:09:47.34 |
+51:45:01.1 |
HIP 40135 |
18.94 |
| 2026-08-03 00:00 |
08:09:52.70 |
+51:44:55.4 |
HIP 40135 |
18.12 |
| 2026-08-03 12:00 |
08:09:58.05 |
+51:44:50.0 |
HIP 40135 |
17.30 |
| 2026-08-04 00:00 |
08:10:03.39 |
+51:44:44.9 |
HIP 40135 |
16.49 |
| 2026-08-04 12:00 |
08:10:08.72 |
+51:44:40.0 |
HIP 40135 |
15.67 |
| 2026-08-05 00:00 |
08:10:14.05 |
+51:44:35.3 |
HIP 40135 |
14.86 |
| 2026-08-05 12:00 |
08:10:19.36 |
+51:44:30.9 |
HIP 40135 |
14.05 |
| 2026-08-06 00:00 |
08:10:24.66 |
+51:44:26.7 |
HIP 40135 |
13.25 |
| 2026-08-06 12:00 |
08:10:29.95 |
+51:44:22.7 |
HIP 40135 |
12.44 |
| 2026-08-07 00:00 |
08:10:35.23 |
+51:44:19.0 |
HIP 40135 |
11.64 |
| 2026-08-07 12:00 |
08:10:40.50 |
+51:44:15.6 |
HIP 40135 |
10.85 |
| 2026-08-08 00:00 |
08:10:45.76 |
+51:44:12.4 |
HIP 40135 |
10.06 |
| 2026-08-08 12:00 |
08:10:51.01 |
+51:44:09.4 |
HIP 40135 |
9.27 |
| 2026-08-09 00:00 |
08:10:56.24 |
+51:44:06.7 |
HIP 40135 |
8.50 |
| 2026-08-09 12:00 |
08:11:01.46 |
+51:44:04.2 |
HIP 40135 |
7.72 |
| 2026-08-10 00:00 |
08:11:06.67 |
+51:44:01.9 |
HIP 40135 |
6.96 |
| 2026-08-10 12:00 |
08:11:11.87 |
+51:44:00.0 |
HIP 40135 |
6.21 |
| 2026-08-11 00:00 |
08:11:17.05 |
+51:43:58.2 |
HIP 40135 |
5.48 |
| 2026-08-11 12:00 |
08:11:22.21 |
+51:43:56.7 |
HIP 40135 |
4.77 |
| 2026-08-12 00:00 |
08:11:27.37 |
+51:43:55.5 |
HIP 40135 |
4.09 |
| 2026-08-12 12:00 |
08:11:32.50 |
+51:43:54.5 |
HIP 40135 |
3.46 |
| 2026-08-13 00:00 |
08:11:37.62 |
+51:43:53.7 |
HIP 40135 |
2.91 |
| 2026-08-13 12:00 |
08:11:42.73 |
+51:43:53.2 |
HIP 40135 |
2.49 |
| 2026-08-14 00:00 |
08:11:47.82 |
+51:43:53.0 |
HIP 40135 |
2.27 |
| 2026-08-14 12:00 |
08:11:52.89 |
+51:43:52.9 |
HIP 40135 |
2.32 |
| 2026-08-15 00:00 |
08:11:57.95 |
+51:43:53.2 |
HIP 40135 |
2.60 |
| 2026-08-15 12:00 |
08:12:02.99 |
+51:43:53.7 |
HIP 40135 |
3.06 |
| 2026-08-16 00:00 |
08:12:08.01 |
+51:43:54.4 |
HIP 40135 |
3.63 |
| 2026-08-16 12:00 |
08:12:13.01 |
+51:43:55.4 |
HIP 40135 |
4.26 |
| 2026-08-17 00:00 |
08:12:18.00 |
+51:43:56.7 |
HIP 40135 |
4.92 |
| 2026-08-17 12:00 |
08:12:22.96 |
+51:43:58.1 |
HIP 40135 |
5.61 |
| 2026-08-18 00:00 |
08:12:27.91 |
+51:43:59.9 |
HIP 40135 |
6.31 |
| 2026-08-18 12:00 |
08:12:32.84 |
+51:44:01.9 |
HIP 40135 |
7.03 |
| 2026-08-19 00:00 |
08:12:37.75 |
+51:44:04.1 |
HIP 40135 |
7.74 |