メタデータ
| 項目 |
値 |
| Designation |
82P/Gehrels 3 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2001-08-30T06:54:50.483520Z |
| Orbit solution date (soln_date, UTC) |
2021-03-19T14:50:48Z |
| Obs used |
143 |
| NEO |
- |
| M1 |
7.600 |
| K1 |
18.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2002-07-29.0000000 |
| e |
0.12325421 |
| q (au) |
3.625705 |
| a (au) |
4.135412 |
| i (deg) |
1.126555 |
| Ω (om, deg) |
239.591461 |
| ω (w, deg) |
227.495662 |
| M (ma, deg) |
38.993681 |
等級
散乱 + 全体線形
$$
M_a = (15.339 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
15.339 |
| n |
2.000 |
| gf |
0.923 |
| gb |
-0.934 |
| k |
1.000 |
| δ90 |
7.611 |
| 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 |
05:08:56.21 |
+22:35:53.5 |
HIP 23784 |
31.67 |
| 2026-06-01 12:00 |
05:09:37.96 |
+22:36:40.6 |
HIP 24163 |
27.91 |
| 2026-06-02 00:00 |
05:10:19.72 |
+22:37:27.0 |
HIP 24163 |
20.99 |
| 2026-06-02 12:00 |
05:11:01.52 |
+22:38:12.7 |
HIP 24163 |
17.00 |
| 2026-06-03 00:00 |
05:11:43.33 |
+22:38:57.8 |
HIP 24163 |
18.02 |
| 2026-06-03 12:00 |
05:12:25.17 |
+22:39:42.2 |
HIP 24163 |
23.40 |
| 2026-06-04 00:00 |
05:13:07.03 |
+22:40:25.9 |
HIP 24415 |
16.62 |
| 2026-06-04 12:00 |
05:13:48.91 |
+22:41:08.9 |
HIP 24415 |
7.11 |
| 2026-06-05 00:00 |
05:14:30.80 |
+22:41:51.2 |
HIP 24415 |
3.54 |
| 2026-06-05 12:00 |
05:15:12.72 |
+22:42:32.9 |
HIP 24415 |
12.74 |
| 2026-06-06 00:00 |
05:15:54.66 |
+22:43:13.8 |
HIP 24415 |
22.36 |
| 2026-06-06 12:00 |
05:16:36.62 |
+22:43:54.1 |
HIP 24668 |
14.13 |
| 2026-06-07 00:00 |
05:17:18.60 |
+22:44:33.7 |
HIP 24668 |
6.09 |
| 2026-06-07 12:00 |
05:18:00.59 |
+22:45:12.6 |
HIP 24668 |
7.92 |
| 2026-06-08 00:00 |
05:18:42.60 |
+22:45:50.8 |
HIP 24668 |
16.64 |
| 2026-06-08 12:00 |
05:19:24.63 |
+22:46:28.3 |
HIP 24668 |
26.06 |
| 2026-06-09 00:00 |
05:20:06.67 |
+22:47:05.2 |
HIP 25068 |
27.70 |
| 2026-06-09 12:00 |
05:20:48.73 |
+22:47:41.3 |
HIP 25068 |
18.70 |
| 2026-06-10 00:00 |
05:21:30.80 |
+22:48:16.7 |
HIP 25068 |
11.00 |
| 2026-06-10 12:00 |
05:22:12.89 |
+22:48:51.4 |
HIP 25068 |
9.00 |
| 2026-06-11 00:00 |
05:22:54.99 |
+22:49:25.4 |
HIP 25068 |
15.16 |
| 2026-06-11 12:00 |
05:23:37.11 |
+22:49:58.7 |
HIP 25312 |
18.88 |
| 2026-06-12 00:00 |
05:24:19.23 |
+22:50:31.3 |
HIP 25312 |
10.64 |
| 2026-06-12 12:00 |
05:25:01.37 |
+22:51:03.2 |
HIP 25312 |
7.68 |
| 2026-06-13 00:00 |
05:25:43.51 |
+22:51:34.4 |
HIP 25409 |
5.43 |
| 2026-06-13 12:00 |
05:26:25.67 |
+22:52:04.9 |
HIP 25413 |
5.17 |
| 2026-06-14 00:00 |
05:27:07.84 |
+22:52:34.6 |
HIP 25586 |
13.80 |
| 2026-06-14 12:00 |
05:27:50.01 |
+22:53:03.7 |
HIP 25586 |
4.62 |
| 2026-06-15 00:00 |
05:28:32.19 |
+22:53:32.0 |
HIP 25586 |
6.44 |
| 2026-06-15 12:00 |
05:29:14.38 |
+22:53:59.6 |
HIP 25621 |
14.66 |
| 2026-06-16 00:00 |
05:29:56.57 |
+22:54:26.6 |
HIP 25779 |
22.45 |
| 2026-06-16 12:00 |
05:30:38.77 |
+22:54:52.7 |
HIP 25848 |
18.66 |
| 2026-06-17 00:00 |
05:31:20.98 |
+22:55:18.2 |
HIP 25848 |
17.70 |
| 2026-06-17 12:00 |
05:32:03.18 |
+22:55:43.0 |
HIP 26015 |
19.21 |
| 2026-06-18 00:00 |
05:32:45.39 |
+22:56:07.0 |
HIP 26015 |
13.25 |
| 2026-06-18 12:00 |
05:33:27.60 |
+22:56:30.3 |
HIP 26015 |
13.08 |
| 2026-06-19 00:00 |
05:34:09.81 |
+22:56:52.9 |
HIP 26015 |
18.86 |
| 2026-06-19 12:00 |
05:34:52.02 |
+22:57:14.7 |
HIP 26187 |
23.15 |
| 2026-06-20 00:00 |
05:35:34.23 |
+22:57:35.9 |
HIP 26365 |
22.43 |
| 2026-06-20 12:00 |
05:36:16.44 |
+22:57:56.3 |
HIP 26365 |
15.21 |
| 2026-06-21 00:00 |
05:36:58.65 |
+22:58:16.0 |
HIP 26365 |
12.18 |
| 2026-06-21 12:00 |
05:37:40.85 |
+22:58:35.0 |
HIP 26441 |
9.80 |
| 2026-06-22 00:00 |
05:38:23.05 |
+22:58:53.3 |
HIP 26441 |
14.26 |