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
$$
M_a = (10.987 + 5.711\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.987 |
| n |
5.711 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-05-12 00:00 |
07:57:29.92 |
+52:45:01.4 |
HIP 38952 |
10.37 |
| 2026-05-12 12:00 |
07:57:32.00 |
+52:44:28.9 |
HIP 38952 |
10.64 |
| 2026-05-13 00:00 |
07:57:34.13 |
+52:43:56.4 |
HIP 38952 |
10.93 |
| 2026-05-13 12:00 |
07:57:36.30 |
+52:43:24.0 |
HIP 38952 |
11.25 |
| 2026-05-14 00:00 |
07:57:38.52 |
+52:42:51.7 |
HIP 38952 |
11.59 |
| 2026-05-14 12:00 |
07:57:40.79 |
+52:42:19.4 |
HIP 38952 |
11.95 |
| 2026-05-15 00:00 |
07:57:43.10 |
+52:41:47.1 |
HIP 38952 |
12.33 |
| 2026-05-15 12:00 |
07:57:45.45 |
+52:41:14.9 |
HIP 38952 |
12.72 |
| 2026-05-16 00:00 |
07:57:47.85 |
+52:40:42.8 |
HIP 38952 |
13.14 |
| 2026-05-16 12:00 |
07:57:50.29 |
+52:40:10.7 |
HIP 38952 |
13.57 |
| 2026-05-17 00:00 |
07:57:52.78 |
+52:39:38.7 |
HIP 38952 |
14.01 |
| 2026-05-17 12:00 |
07:57:55.30 |
+52:39:06.7 |
HIP 38952 |
14.47 |
| 2026-05-18 00:00 |
07:57:57.88 |
+52:38:34.8 |
HIP 38952 |
14.94 |
| 2026-05-18 12:00 |
07:58:00.49 |
+52:38:03.0 |
HIP 38952 |
15.42 |
| 2026-05-19 00:00 |
07:58:03.15 |
+52:37:31.3 |
HIP 38952 |
15.92 |
| 2026-05-19 12:00 |
07:58:05.85 |
+52:36:59.6 |
HIP 38952 |
16.42 |
| 2026-05-20 00:00 |
07:58:08.59 |
+52:36:28.0 |
HIP 38952 |
16.94 |
| 2026-05-20 12:00 |
07:58:11.37 |
+52:35:56.4 |
HIP 38952 |
17.46 |
| 2026-05-21 00:00 |
07:58:14.20 |
+52:35:25.0 |
HIP 38952 |
18.00 |
| 2026-05-21 12:00 |
07:58:17.06 |
+52:34:53.6 |
HIP 38952 |
18.54 |
| 2026-05-22 00:00 |
07:58:19.97 |
+52:34:22.3 |
HIP 38952 |
19.09 |
| 2026-05-22 12:00 |
07:58:22.92 |
+52:33:51.1 |
HIP 38952 |
19.64 |
| 2026-05-23 00:00 |
07:58:25.90 |
+52:33:19.9 |
HIP 38952 |
20.21 |
| 2026-05-23 12:00 |
07:58:28.93 |
+52:32:48.9 |
HIP 38952 |
20.78 |
| 2026-05-24 00:00 |
07:58:32.00 |
+52:32:17.9 |
HIP 38952 |
21.36 |
| 2026-05-24 12:00 |
07:58:35.10 |
+52:31:47.0 |
HIP 38952 |
21.94 |
| 2026-05-25 00:00 |
07:58:38.25 |
+52:31:16.3 |
HIP 38952 |
22.53 |
| 2026-05-25 12:00 |
07:58:41.43 |
+52:30:45.6 |
HIP 38952 |
23.13 |
| 2026-05-26 00:00 |
07:58:44.65 |
+52:30:15.0 |
HIP 38952 |
23.73 |
| 2026-05-26 12:00 |
07:58:47.91 |
+52:29:44.5 |
HIP 38952 |
24.33 |
| 2026-05-27 00:00 |
07:58:51.20 |
+52:29:14.1 |
HIP 38952 |
24.95 |
| 2026-05-27 12:00 |
07:58:54.54 |
+52:28:43.8 |
HIP 38952 |
25.56 |
| 2026-05-28 00:00 |
07:58:57.91 |
+52:28:13.6 |
HIP 38952 |
26.19 |
| 2026-05-28 12:00 |
07:59:01.31 |
+52:27:43.5 |
HIP 38952 |
26.81 |
| 2026-05-29 00:00 |
07:59:04.76 |
+52:27:13.5 |
HIP 38952 |
27.45 |
| 2026-05-29 12:00 |
07:59:08.24 |
+52:26:43.6 |
HIP 38952 |
28.08 |
| 2026-05-30 00:00 |
07:59:11.75 |
+52:26:13.8 |
HIP 38952 |
28.72 |
| 2026-05-30 12:00 |
07:59:15.30 |
+52:25:44.1 |
HIP 38952 |
29.37 |
| 2026-05-31 00:00 |
07:59:18.89 |
+52:25:14.5 |
HIP 38952 |
30.02 |
| 2026-05-31 12:00 |
07:59:22.51 |
+52:24:45.1 |
HIP 38952 |
30.67 |
| 2026-06-01 00:00 |
07:59:26.17 |
+52:24:15.7 |
HIP 38952 |
31.33 |
| 2026-06-01 12:00 |
07:59:29.86 |
+52:23:46.5 |
HIP 38952 |
31.99 |
| 2026-06-02 00:00 |
07:59:33.58 |
+52:23:17.4 |
HIP 38952 |
32.65 |