メタデータ
| 項目 |
値 |
| Designation |
33P/Daniel |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-08-22T10:20:16.540800Z |
| Orbit solution date (soln_date, UTC) |
2025-05-09T00:48:39Z |
| Obs used |
773 |
| NEO |
- |
| M1 |
15.500 |
| 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) |
2016-01-24.0000000 |
| e |
0.46319414 |
| q (au) |
2.160176 |
| a (au) |
4.024129 |
| i (deg) |
22.393082 |
| Ω (om, deg) |
66.494295 |
| ω (w, deg) |
19.055486 |
| M (ma, deg) |
334.185460 |
等級
散乱 + 全体線形
$$
M_a = (17.156 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
17.156 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.667 |
| k |
0.800 |
| 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
ファインディングチャート
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
13:28:41.83 |
+08:49:32.0 |
HIP 65686 |
9.14 |
| 2026-06-01 12:00 |
13:28:32.84 |
+08:47:22.5 |
HIP 65686 |
7.37 |
| 2026-06-02 00:00 |
13:28:24.07 |
+08:45:11.6 |
HIP 65686 |
6.71 |
| 2026-06-02 12:00 |
13:28:15.53 |
+08:42:59.3 |
HIP 65686 |
7.43 |
| 2026-06-03 00:00 |
13:28:07.22 |
+08:40:45.7 |
HIP 65686 |
9.20 |
| 2026-06-03 12:00 |
13:27:59.14 |
+08:38:30.8 |
HIP 65686 |
11.52 |
| 2026-06-04 00:00 |
13:27:51.29 |
+08:36:14.5 |
HIP 65686 |
14.11 |
| 2026-06-04 12:00 |
13:27:43.66 |
+08:33:56.9 |
HIP 65696 |
13.96 |
| 2026-06-05 00:00 |
13:27:36.26 |
+08:31:38.1 |
HIP 65696 |
12.99 |
| 2026-06-05 12:00 |
13:27:29.09 |
+08:29:17.9 |
HIP 65696 |
12.60 |
| 2026-06-06 00:00 |
13:27:22.15 |
+08:26:56.5 |
HIP 65696 |
12.82 |
| 2026-06-06 12:00 |
13:27:15.44 |
+08:24:33.8 |
HIP 65696 |
13.61 |
| 2026-06-07 00:00 |
13:27:08.95 |
+08:22:09.9 |
HIP 65696 |
14.88 |
| 2026-06-07 12:00 |
13:27:02.69 |
+08:19:44.7 |
HIP 65542 |
14.66 |
| 2026-06-08 00:00 |
13:26:56.66 |
+08:17:18.4 |
HIP 65542 |
12.37 |
| 2026-06-08 12:00 |
13:26:50.86 |
+08:14:50.8 |
HIP 65542 |
10.41 |
| 2026-06-09 00:00 |
13:26:45.29 |
+08:12:22.1 |
HIP 65542 |
9.00 |
| 2026-06-09 12:00 |
13:26:39.94 |
+08:09:52.1 |
HIP 65542 |
8.41 |
| 2026-06-10 00:00 |
13:26:34.82 |
+08:07:21.0 |
HIP 65542 |
8.80 |
| 2026-06-10 12:00 |
13:26:29.93 |
+08:04:48.7 |
HIP 65542 |
10.05 |
| 2026-06-11 00:00 |
13:26:25.26 |
+08:02:15.3 |
HIP 65542 |
11.88 |
| 2026-06-11 12:00 |
13:26:20.83 |
+07:59:40.8 |
HIP 65542 |
14.07 |
| 2026-06-12 00:00 |
13:26:16.62 |
+07:57:05.1 |
HIP 65542 |
16.47 |
| 2026-06-12 12:00 |
13:26:12.63 |
+07:54:28.4 |
HIP 65542 |
19.00 |
| 2026-06-13 00:00 |
13:26:08.88 |
+07:51:50.5 |
HIP 65542 |
21.61 |
| 2026-06-13 12:00 |
13:26:05.35 |
+07:49:11.6 |
HIP 65580 |
23.82 |
| 2026-06-14 00:00 |
13:26:02.04 |
+07:46:31.6 |
HIP 65580 |
21.74 |
| 2026-06-14 12:00 |
13:25:58.96 |
+07:43:50.5 |
HIP 65580 |
19.79 |
| 2026-06-15 00:00 |
13:25:56.11 |
+07:41:08.4 |
HIP 65580 |
18.02 |
| 2026-06-15 12:00 |
13:25:53.48 |
+07:38:25.2 |
HIP 65580 |
16.48 |
| 2026-06-16 00:00 |
13:25:51.08 |
+07:35:41.1 |
HIP 65558 |
14.62 |
| 2026-06-16 12:00 |
13:25:48.90 |
+07:32:55.9 |
HIP 65558 |
12.92 |
| 2026-06-17 00:00 |
13:25:46.94 |
+07:30:09.8 |
HIP 65558 |
11.59 |
| 2026-06-17 12:00 |
13:25:45.21 |
+07:27:22.7 |
HIP 65558 |
10.79 |
| 2026-06-18 00:00 |
13:25:43.70 |
+07:24:34.6 |
HIP 65558 |
10.64 |
| 2026-06-18 12:00 |
13:25:42.41 |
+07:21:45.6 |
HIP 65558 |
11.17 |
| 2026-06-19 00:00 |
13:25:41.34 |
+07:18:55.7 |
HIP 65558 |
12.30 |
| 2026-06-19 12:00 |
13:25:40.49 |
+07:16:04.8 |
HIP 65558 |
13.90 |
| 2026-06-20 00:00 |
13:25:39.87 |
+07:13:13.0 |
HIP 65558 |
15.82 |
| 2026-06-20 12:00 |
13:25:39.45 |
+07:10:20.4 |
HIP 65558 |
17.97 |
| 2026-06-21 00:00 |
13:25:39.26 |
+07:07:26.8 |
HIP 65558 |
20.29 |
| 2026-06-21 12:00 |
13:25:39.28 |
+07:04:32.4 |
HIP 65558 |
22.72 |
| 2026-06-22 00:00 |
13:25:39.52 |
+07:01:37.2 |
HIP 65558 |
25.24 |