メタデータ
| 項目 |
値 |
| Designation |
83D/Russell 1 |
| Type |
D |
| Perihelion (tp_cal, UTC) |
1985-07-05T05:29:58.032960Z |
| Orbit solution date (soln_date, UTC) |
2002-03-14T16:28:09Z |
| Obs used |
20 |
| NEO |
- |
| M1 |
14.000 |
| K1 |
15.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1985-06-24.0000000 |
| e |
0.51720991 |
| q (au) |
1.611542 |
| a (au) |
3.337976 |
| i (deg) |
22.659459 |
| Ω (om, deg) |
230.842006 |
| ω (w, deg) |
0.376229 |
| M (ma, deg) |
358.185212 |
等級
散乱 + 全体線形
$$
M_a = (11.812 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.812 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| k |
1.000 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
03:00:27.64 |
+16:53:54.3 |
HIP 14098 |
30.23 |
| 2026-05-12 12:00 |
03:00:53.73 |
+16:55:12.0 |
HIP 14098 |
27.67 |
| 2026-05-13 00:00 |
03:01:19.84 |
+16:56:29.5 |
HIP 14098 |
26.44 |
| 2026-05-13 12:00 |
03:01:45.95 |
+16:57:46.7 |
HIP 14098 |
26.71 |
| 2026-05-14 00:00 |
03:02:12.07 |
+16:59:03.7 |
HIP 14098 |
28.44 |
| 2026-05-14 12:00 |
03:02:38.19 |
+17:00:20.5 |
HIP 14098 |
31.40 |
| 2026-05-15 00:00 |
03:03:04.32 |
+17:01:37.0 |
HIP 14183 |
32.42 |
| 2026-05-15 12:00 |
03:03:30.45 |
+17:02:53.3 |
HIP 14183 |
32.27 |
| 2026-05-16 00:00 |
03:03:56.59 |
+17:04:09.3 |
HIP 14183 |
33.36 |
| 2026-05-16 12:00 |
03:04:22.73 |
+17:05:25.1 |
HIP 14183 |
35.58 |
| 2026-05-17 00:00 |
03:04:48.87 |
+17:06:40.6 |
HIP 14183 |
38.73 |
| 2026-05-17 12:00 |
03:05:15.02 |
+17:07:55.9 |
HIP 14569 |
41.44 |
| 2026-05-18 00:00 |
03:05:41.16 |
+17:09:10.9 |
HIP 14569 |
35.52 |
| 2026-05-18 12:00 |
03:06:07.30 |
+17:10:25.7 |
HIP 14569 |
29.79 |
| 2026-05-19 00:00 |
03:06:33.45 |
+17:11:40.1 |
HIP 14569 |
24.37 |
| 2026-05-19 12:00 |
03:06:59.59 |
+17:12:54.3 |
HIP 14569 |
19.54 |
| 2026-05-20 00:00 |
03:07:25.73 |
+17:14:08.2 |
HIP 14569 |
15.83 |
| 2026-05-20 12:00 |
03:07:51.87 |
+17:15:21.9 |
HIP 14569 |
14.16 |
| 2026-05-21 00:00 |
03:08:18.00 |
+17:16:35.2 |
HIP 14569 |
15.20 |
| 2026-05-21 12:00 |
03:08:44.13 |
+17:17:48.3 |
HIP 14682 |
13.64 |
| 2026-05-22 00:00 |
03:09:10.26 |
+17:19:01.0 |
HIP 14682 |
7.98 |
| 2026-05-22 12:00 |
03:09:36.38 |
+17:20:13.5 |
HIP 14682 |
4.67 |
| 2026-05-23 00:00 |
03:10:02.49 |
+17:21:25.7 |
HIP 14682 |
7.79 |
| 2026-05-23 12:00 |
03:10:28.60 |
+17:22:37.5 |
HIP 14682 |
13.42 |
| 2026-05-24 00:00 |
03:10:54.70 |
+17:23:49.1 |
HIP 14682 |
19.48 |
| 2026-05-24 12:00 |
03:11:20.79 |
+17:25:00.3 |
HIP 14901 |
14.93 |
| 2026-05-25 00:00 |
03:11:46.88 |
+17:26:11.3 |
HIP 14901 |
10.72 |
| 2026-05-25 12:00 |
03:12:12.95 |
+17:27:21.9 |
HIP 14901 |
9.33 |
| 2026-05-26 00:00 |
03:12:39.02 |
+17:28:32.2 |
HIP 14901 |
11.80 |
| 2026-05-26 12:00 |
03:13:05.08 |
+17:29:42.2 |
HIP 14901 |
16.48 |
| 2026-05-27 00:00 |
03:13:31.12 |
+17:30:51.8 |
HIP 14901 |
21.99 |
| 2026-05-27 12:00 |
03:13:57.15 |
+17:32:01.2 |
HIP 15052 |
21.31 |
| 2026-05-28 00:00 |
03:14:23.18 |
+17:33:10.2 |
HIP 15052 |
20.97 |
| 2026-05-28 12:00 |
03:14:49.19 |
+17:34:18.8 |
HIP 15052 |
22.48 |
| 2026-05-29 00:00 |
03:15:15.18 |
+17:35:27.2 |
HIP 15052 |
25.49 |
| 2026-05-29 12:00 |
03:15:41.17 |
+17:36:35.2 |
HIP 15285 |
21.85 |
| 2026-05-30 00:00 |
03:16:07.14 |
+17:37:42.8 |
HIP 15285 |
15.90 |
| 2026-05-30 12:00 |
03:16:33.09 |
+17:38:50.2 |
HIP 15285 |
10.37 |
| 2026-05-31 00:00 |
03:16:59.03 |
+17:39:57.1 |
HIP 15285 |
6.42 |
| 2026-05-31 12:00 |
03:17:24.96 |
+17:41:03.8 |
HIP 15285 |
7.32 |
| 2026-06-01 00:00 |
03:17:50.87 |
+17:42:10.0 |
HIP 15285 |
12.03 |
| 2026-06-01 12:00 |
03:18:16.76 |
+17:43:16.0 |
HIP 15285 |
17.72 |
| 2026-06-02 00:00 |
03:18:42.63 |
+17:44:21.5 |
HIP 15519 |
23.19 |