メタデータ
| 項目 |
値 |
| Designation |
C/2002 B3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-01-16T16:07:23.381760Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:14Z |
| Obs used |
50 |
| NEO |
- |
| M1 |
7.800 |
| 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) |
2002-02-11.0000000 |
| e |
1.00544039 |
| q (au) |
6.056174 |
| a (au) |
-1113.188016 |
| i (deg) |
73.690348 |
| Ω (om, deg) |
289.364950 |
| ω (w, deg) |
123.136749 |
| M (ma, deg) |
0.000672 |
等級
散乱 + 全体線形
$$
M_a = (10.937 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.937 |
| n |
2.000 |
| gf |
0.910 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
7.444 |
| 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 |
08:11:07.30 |
-55:45:18.8 |
HIP 39957 |
23.77 |
| 2026-03-26 12:00 |
08:11:05.22 |
-55:44:44.1 |
HIP 39957 |
24.09 |
| 2026-03-27 00:00 |
08:11:03.18 |
-55:44:09.2 |
HIP 39957 |
24.44 |
| 2026-03-27 12:00 |
08:11:01.17 |
-55:43:34.1 |
HIP 39957 |
24.81 |
| 2026-03-28 00:00 |
08:10:59.21 |
-55:42:59.0 |
HIP 39890 |
24.61 |
| 2026-03-28 12:00 |
08:10:57.29 |
-55:42:23.7 |
HIP 39890 |
24.01 |
| 2026-03-29 00:00 |
08:10:55.41 |
-55:41:48.3 |
HIP 39890 |
23.42 |
| 2026-03-29 12:00 |
08:10:53.57 |
-55:41:12.8 |
HIP 39890 |
22.83 |
| 2026-03-30 00:00 |
08:10:51.77 |
-55:40:37.2 |
HIP 39890 |
22.25 |
| 2026-03-30 12:00 |
08:10:50.01 |
-55:40:01.5 |
HIP 39890 |
21.68 |
| 2026-03-31 00:00 |
08:10:48.29 |
-55:39:25.6 |
HIP 39890 |
21.11 |
| 2026-03-31 12:00 |
08:10:46.61 |
-55:38:49.7 |
HIP 39890 |
20.56 |
| 2026-04-01 00:00 |
08:10:44.97 |
-55:38:13.7 |
HIP 39890 |
20.01 |
| 2026-04-01 12:00 |
08:10:43.38 |
-55:37:37.6 |
HIP 39890 |
19.47 |
| 2026-04-02 00:00 |
08:10:41.82 |
-55:37:01.3 |
HIP 39890 |
18.94 |
| 2026-04-02 12:00 |
08:10:40.31 |
-55:36:25.0 |
HIP 39890 |
18.42 |
| 2026-04-03 00:00 |
08:10:38.83 |
-55:35:48.6 |
HIP 39890 |
17.91 |
| 2026-04-03 12:00 |
08:10:37.40 |
-55:35:12.2 |
HIP 39890 |
17.42 |
| 2026-04-04 00:00 |
08:10:36.01 |
-55:34:35.6 |
HIP 39890 |
16.94 |
| 2026-04-04 12:00 |
08:10:34.66 |
-55:33:59.0 |
HIP 39890 |
16.47 |
| 2026-04-05 00:00 |
08:10:33.35 |
-55:33:22.2 |
HIP 39890 |
16.03 |
| 2026-04-05 12:00 |
08:10:32.08 |
-55:32:45.5 |
HIP 39890 |
15.60 |
| 2026-04-06 00:00 |
08:10:30.85 |
-55:32:08.6 |
HIP 39890 |
15.19 |
| 2026-04-06 12:00 |
08:10:29.67 |
-55:31:31.7 |
HIP 39890 |
14.80 |
| 2026-04-07 00:00 |
08:10:28.52 |
-55:30:54.7 |
HIP 39890 |
14.43 |
| 2026-04-07 12:00 |
08:10:27.42 |
-55:30:17.7 |
HIP 39890 |
14.09 |
| 2026-04-08 00:00 |
08:10:26.36 |
-55:29:40.6 |
HIP 39890 |
13.77 |
| 2026-04-08 12:00 |
08:10:25.34 |
-55:29:03.4 |
HIP 39890 |
13.49 |
| 2026-04-09 00:00 |
08:10:24.36 |
-55:28:26.2 |
HIP 39890 |
13.23 |
| 2026-04-09 12:00 |
08:10:23.42 |
-55:27:48.9 |
HIP 39890 |
13.00 |
| 2026-04-10 00:00 |
08:10:22.53 |
-55:27:11.6 |
HIP 39890 |
12.81 |
| 2026-04-10 12:00 |
08:10:21.67 |
-55:26:34.3 |
HIP 39890 |
12.65 |
| 2026-04-11 00:00 |
08:10:20.86 |
-55:25:56.9 |
HIP 39890 |
12.53 |
| 2026-04-11 12:00 |
08:10:20.09 |
-55:25:19.5 |
HIP 39890 |
12.45 |
| 2026-04-12 00:00 |
08:10:19.37 |
-55:24:42.1 |
HIP 39890 |
12.40 |
| 2026-04-12 12:00 |
08:10:18.68 |
-55:24:04.6 |
HIP 39890 |
12.39 |
| 2026-04-13 00:00 |
08:10:18.04 |
-55:23:27.1 |
HIP 39890 |
12.42 |
| 2026-04-13 12:00 |
08:10:17.44 |
-55:22:49.6 |
HIP 39890 |
12.49 |
| 2026-04-14 00:00 |
08:10:16.87 |
-55:22:12.0 |
HIP 39890 |
12.59 |
| 2026-04-14 12:00 |
08:10:16.36 |
-55:21:34.4 |
HIP 39890 |
12.73 |
| 2026-04-15 00:00 |
08:10:15.88 |
-55:20:56.9 |
HIP 39890 |
12.91 |
| 2026-04-15 12:00 |
08:10:15.45 |
-55:20:19.3 |
HIP 39890 |
13.12 |
| 2026-04-16 00:00 |
08:10:15.05 |
-55:19:41.7 |
HIP 39890 |
13.36 |