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) |
| 2026-07-29 00:00 |
13:34:48.47 |
+02:58:26.9 |
HIP 66174 |
17.45 |
| 2026-07-29 12:00 |
13:35:02.12 |
+02:54:56.2 |
HIP 66349 |
19.25 |
| 2026-07-30 00:00 |
13:35:15.91 |
+02:51:25.4 |
HIP 66349 |
14.33 |
| 2026-07-30 12:00 |
13:35:29.85 |
+02:47:54.4 |
HIP 66349 |
9.38 |
| 2026-07-31 00:00 |
13:35:43.91 |
+02:44:23.2 |
HIP 66349 |
4.43 |
| 2026-07-31 12:00 |
13:35:58.12 |
+02:40:51.9 |
HIP 66349 |
0.81 |
| 2026-08-01 00:00 |
13:36:12.46 |
+02:37:20.4 |
HIP 66349 |
5.66 |
| 2026-08-01 12:00 |
13:36:26.94 |
+02:33:48.8 |
HIP 66349 |
10.70 |
| 2026-08-02 00:00 |
13:36:41.55 |
+02:30:17.0 |
HIP 66349 |
15.77 |
| 2026-08-02 12:00 |
13:36:56.29 |
+02:26:45.1 |
HIP 66476 |
12.51 |
| 2026-08-03 00:00 |
13:37:11.17 |
+02:23:13.1 |
HIP 66476 |
8.21 |
| 2026-08-03 12:00 |
13:37:26.18 |
+02:19:41.0 |
HIP 66476 |
5.52 |
| 2026-08-04 00:00 |
13:37:41.32 |
+02:16:08.8 |
HIP 66476 |
6.83 |
| 2026-08-04 12:00 |
13:37:56.59 |
+02:12:36.4 |
HIP 66476 |
10.80 |
| 2026-08-05 00:00 |
13:38:11.98 |
+02:09:04.0 |
HIP 66476 |
15.54 |
| 2026-08-05 12:00 |
13:38:27.51 |
+02:05:31.4 |
HIP 66476 |
20.53 |
| 2026-08-06 00:00 |
13:38:43.16 |
+02:01:58.7 |
HIP 66476 |
25.65 |
| 2026-08-06 12:00 |
13:38:58.94 |
+01:58:26.0 |
HIP 66708 |
24.45 |
| 2026-08-07 00:00 |
13:39:14.85 |
+01:54:53.1 |
HIP 66708 |
22.97 |
| 2026-08-07 12:00 |
13:39:30.88 |
+01:51:20.2 |
HIP 66708 |
22.65 |
| 2026-08-08 00:00 |
13:39:47.04 |
+01:47:47.2 |
HIP 66708 |
23.56 |
| 2026-08-08 12:00 |
13:40:03.32 |
+01:44:14.1 |
HIP 66708 |
25.59 |
| 2026-08-09 00:00 |
13:40:19.72 |
+01:40:41.0 |
HIP 66708 |
28.50 |
| 2026-08-09 12:00 |
13:40:36.25 |
+01:37:07.8 |
HIP 66872 |
26.57 |
| 2026-08-10 00:00 |
13:40:52.89 |
+01:33:34.5 |
HIP 66872 |
21.77 |
| 2026-08-10 12:00 |
13:41:09.66 |
+01:30:01.2 |
HIP 66872 |
17.33 |
| 2026-08-11 00:00 |
13:41:26.55 |
+01:26:27.9 |
HIP 66872 |
13.66 |
| 2026-08-11 12:00 |
13:41:43.55 |
+01:22:54.5 |
HIP 66872 |
11.55 |
| 2026-08-12 00:00 |
13:42:00.67 |
+01:19:21.0 |
HIP 66872 |
11.88 |
| 2026-08-12 12:00 |
13:42:17.91 |
+01:15:47.6 |
HIP 66872 |
14.52 |
| 2026-08-13 00:00 |
13:42:35.27 |
+01:12:14.1 |
HIP 66875 |
12.89 |
| 2026-08-13 12:00 |
13:42:52.74 |
+01:08:40.6 |
HIP 66875 |
11.82 |
| 2026-08-14 00:00 |
13:43:10.32 |
+01:05:07.1 |
HIP 66875 |
13.33 |
| 2026-08-14 12:00 |
13:43:28.02 |
+01:01:33.6 |
HIP 66875 |
16.74 |
| 2026-08-15 00:00 |
13:43:45.83 |
+00:58:00.1 |
HIP 67050 |
18.94 |
| 2026-08-15 12:00 |
13:44:03.75 |
+00:54:26.6 |
HIP 67050 |
13.64 |
| 2026-08-16 00:00 |
13:44:21.78 |
+00:50:53.1 |
HIP 67050 |
8.87 |
| 2026-08-16 12:00 |
13:44:39.91 |
+00:47:19.6 |
HIP 67050 |
6.11 |
| 2026-08-17 00:00 |
13:44:58.16 |
+00:43:46.2 |
HIP 67050 |
7.93 |
| 2026-08-17 12:00 |
13:45:16.52 |
+00:40:12.8 |
HIP 67050 |
12.49 |
| 2026-08-18 00:00 |
13:45:34.98 |
+00:36:39.4 |
HIP 67216 |
16.47 |
| 2026-08-18 12:00 |
13:45:53.55 |
+00:33:06.1 |
HIP 67216 |
10.62 |
| 2026-08-19 00:00 |
13:46:12.22 |
+00:29:32.8 |
HIP 67216 |
4.75 |