メタデータ
| 項目 |
値 |
| Designation |
C/2013 J5 (Boattini) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2012-11-30T00:52:09.624000Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:12:22Z |
| Obs used |
74 |
| NEO |
- |
| M1 |
10.000 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-05-04.0000000 |
| e |
1.00247225 |
| q (au) |
4.905909 |
| a (au) |
-1984.387923 |
| i (deg) |
136.025000 |
| Ω (om, deg) |
256.785024 |
| ω (w, deg) |
19.174987 |
| M (ma, deg) |
0.001728 |
等級
散乱 + 全体線形
$$
M_a = (9.126 + 3.952\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
9.126 |
| n |
3.952 |
| gf |
0.956 |
| gb |
-0.998 |
| k |
1.000 |
| δ90 |
9.999 |
| 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) |
| 2026-06-01 00:00 |
06:44:50.91 |
+43:06:49.0 |
HIP 32267 |
8.18 |
| 2026-06-01 12:00 |
06:44:55.21 |
+43:06:30.7 |
HIP 32267 |
8.72 |
| 2026-06-02 00:00 |
06:44:59.53 |
+43:06:12.5 |
HIP 32267 |
9.31 |
| 2026-06-02 12:00 |
06:45:03.87 |
+43:05:54.4 |
HIP 32267 |
9.95 |
| 2026-06-03 00:00 |
06:45:08.24 |
+43:05:36.5 |
HIP 32267 |
10.61 |
| 2026-06-03 12:00 |
06:45:12.62 |
+43:05:18.6 |
HIP 32267 |
11.31 |
| 2026-06-04 00:00 |
06:45:17.02 |
+43:05:01.0 |
HIP 32267 |
12.03 |
| 2026-06-04 12:00 |
06:45:21.44 |
+43:04:43.4 |
HIP 32267 |
12.77 |
| 2026-06-05 00:00 |
06:45:25.88 |
+43:04:26.0 |
HIP 32267 |
13.52 |
| 2026-06-05 12:00 |
06:45:30.34 |
+43:04:08.8 |
HIP 32267 |
14.30 |
| 2026-06-06 00:00 |
06:45:34.81 |
+43:03:51.7 |
HIP 32267 |
15.09 |
| 2026-06-06 12:00 |
06:45:39.31 |
+43:03:34.7 |
HIP 32267 |
15.88 |
| 2026-06-07 00:00 |
06:45:43.82 |
+43:03:17.8 |
HIP 32267 |
16.69 |
| 2026-06-07 12:00 |
06:45:48.35 |
+43:03:01.1 |
HIP 32267 |
17.51 |
| 2026-06-08 00:00 |
06:45:52.89 |
+43:02:44.6 |
HIP 32267 |
18.34 |
| 2026-06-08 12:00 |
06:45:57.46 |
+43:02:28.1 |
HIP 32267 |
19.17 |
| 2026-06-09 00:00 |
06:46:02.04 |
+43:02:11.8 |
HIP 32267 |
20.01 |
| 2026-06-09 12:00 |
06:46:06.63 |
+43:01:55.7 |
HIP 32267 |
20.86 |
| 2026-06-10 00:00 |
06:46:11.24 |
+43:01:39.7 |
HIP 32267 |
21.71 |
| 2026-06-10 12:00 |
06:46:15.87 |
+43:01:23.8 |
HIP 32267 |
22.57 |
| 2026-06-11 00:00 |
06:46:20.51 |
+43:01:08.1 |
HIP 32267 |
23.43 |
| 2026-06-11 12:00 |
06:46:25.17 |
+43:00:52.5 |
HIP 32267 |
24.30 |
| 2026-06-12 00:00 |
06:46:29.84 |
+43:00:37.1 |
HIP 32655 |
24.37 |
| 2026-06-12 12:00 |
06:46:34.53 |
+43:00:21.8 |
HIP 32655 |
23.53 |
| 2026-06-13 00:00 |
06:46:39.22 |
+43:00:06.7 |
HIP 32655 |
22.69 |
| 2026-06-13 12:00 |
06:46:43.94 |
+42:59:51.7 |
HIP 32655 |
21.86 |
| 2026-06-14 00:00 |
06:46:48.66 |
+42:59:36.9 |
HIP 32655 |
21.02 |
| 2026-06-14 12:00 |
06:46:53.40 |
+42:59:22.2 |
HIP 32655 |
20.19 |
| 2026-06-15 00:00 |
06:46:58.15 |
+42:59:07.6 |
HIP 32655 |
19.36 |
| 2026-06-15 12:00 |
06:47:02.91 |
+42:58:53.2 |
HIP 32655 |
18.53 |
| 2026-06-16 00:00 |
06:47:07.69 |
+42:58:39.0 |
HIP 32655 |
17.71 |
| 2026-06-16 12:00 |
06:47:12.47 |
+42:58:24.9 |
HIP 32655 |
16.90 |
| 2026-06-17 00:00 |
06:47:17.27 |
+42:58:10.9 |
HIP 32655 |
16.09 |
| 2026-06-17 12:00 |
06:47:22.07 |
+42:57:57.1 |
HIP 32655 |
15.29 |
| 2026-06-18 00:00 |
06:47:26.89 |
+42:57:43.5 |
HIP 32655 |
14.51 |
| 2026-06-18 12:00 |
06:47:31.71 |
+42:57:30.0 |
HIP 32655 |
13.73 |
| 2026-06-19 00:00 |
06:47:36.55 |
+42:57:16.6 |
HIP 32655 |
12.97 |
| 2026-06-19 12:00 |
06:47:41.39 |
+42:57:03.4 |
HIP 32655 |
12.23 |
| 2026-06-20 00:00 |
06:47:46.25 |
+42:56:50.4 |
HIP 32655 |
11.51 |
| 2026-06-20 12:00 |
06:47:51.11 |
+42:56:37.5 |
HIP 32655 |
10.81 |
| 2026-06-21 00:00 |
06:47:55.97 |
+42:56:24.8 |
HIP 32655 |
10.15 |
| 2026-06-21 12:00 |
06:48:00.85 |
+42:56:12.2 |
HIP 32655 |
9.53 |
| 2026-06-22 00:00 |
06:48:05.73 |
+42:55:59.8 |
HIP 32655 |
8.96 |