メタデータ
| 項目 |
値 |
| Designation |
392P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2005-01-10T10:13:16.317120Z |
| Orbit solution date (soln_date, UTC) |
2021-05-02T23:43:04Z |
| Obs used |
387 |
| NEO |
- |
| M1 |
16.400 |
| K1 |
6.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-10-26T23:06:55.296000Z |
| Discovery magnitude (MPC) |
19.20 R |
| Discovery observatory (MPC) |
K88 · GINOP-KHK, Piszkéstető |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2007-07-23.0000000 |
| e |
0.68253089 |
| q (au) |
1.954181 |
| a (au) |
6.155501 |
| i (deg) |
4.936928 |
| Ω (om, deg) |
25.107005 |
| ω (w, deg) |
71.998314 |
| M (ma, deg) |
59.604733 |
等級
散乱 + 全体線形
$$
M_a = (13.743 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
13.743 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.765 |
| k |
0.987 |
| 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 |
18:04:49.18 |
-28:10:57.1 |
HIP 88401 |
26.17 |
| 2026-05-12 12:00 |
18:04:40.85 |
-28:11:09.3 |
HIP 88401 |
24.45 |
| 2026-05-13 00:00 |
18:04:32.43 |
-28:11:21.5 |
HIP 88401 |
22.75 |
| 2026-05-13 12:00 |
18:04:23.92 |
-28:11:33.5 |
HIP 88401 |
21.05 |
| 2026-05-14 00:00 |
18:04:15.32 |
-28:11:45.4 |
HIP 88401 |
19.38 |
| 2026-05-14 12:00 |
18:04:06.64 |
-28:11:57.2 |
HIP 88401 |
17.74 |
| 2026-05-15 00:00 |
18:03:57.88 |
-28:12:08.8 |
HIP 88401 |
16.15 |
| 2026-05-15 12:00 |
18:03:49.03 |
-28:12:20.3 |
HIP 88401 |
14.63 |
| 2026-05-16 00:00 |
18:03:40.10 |
-28:12:31.7 |
HIP 88401 |
13.22 |
| 2026-05-16 12:00 |
18:03:31.09 |
-28:12:43.0 |
HIP 88401 |
11.96 |
| 2026-05-17 00:00 |
18:03:21.99 |
-28:12:54.2 |
HIP 88401 |
10.92 |
| 2026-05-17 12:00 |
18:03:12.82 |
-28:13:05.2 |
HIP 88401 |
10.17 |
| 2026-05-18 00:00 |
18:03:03.57 |
-28:13:16.1 |
HIP 88401 |
9.80 |
| 2026-05-18 12:00 |
18:02:54.24 |
-28:13:26.8 |
HIP 88401 |
9.85 |
| 2026-05-19 00:00 |
18:02:44.83 |
-28:13:37.4 |
HIP 88401 |
10.33 |
| 2026-05-19 12:00 |
18:02:35.35 |
-28:13:47.9 |
HIP 88401 |
11.19 |
| 2026-05-20 00:00 |
18:02:25.79 |
-28:13:58.2 |
HIP 88401 |
12.36 |
| 2026-05-20 12:00 |
18:02:16.16 |
-28:14:08.4 |
HIP 88401 |
13.77 |
| 2026-05-21 00:00 |
18:02:06.46 |
-28:14:18.4 |
HIP 88401 |
15.37 |
| 2026-05-21 12:00 |
18:01:56.68 |
-28:14:28.3 |
HIP 88401 |
17.09 |
| 2026-05-22 00:00 |
18:01:46.84 |
-28:14:38.0 |
HIP 88401 |
18.93 |
| 2026-05-22 12:00 |
18:01:36.93 |
-28:14:47.6 |
HIP 88401 |
20.84 |
| 2026-05-23 00:00 |
18:01:26.95 |
-28:14:57.1 |
HIP 88401 |
22.81 |
| 2026-05-23 12:00 |
18:01:16.90 |
-28:15:06.3 |
HIP 88401 |
24.84 |
| 2026-05-24 00:00 |
18:01:06.79 |
-28:15:15.4 |
HIP 88157 |
24.28 |
| 2026-05-24 12:00 |
18:00:56.61 |
-28:15:24.4 |
HIP 88157 |
23.28 |
| 2026-05-25 00:00 |
18:00:46.37 |
-28:15:33.2 |
HIP 88157 |
22.46 |
| 2026-05-25 12:00 |
18:00:36.07 |
-28:15:41.8 |
HIP 88157 |
21.84 |
| 2026-05-26 00:00 |
18:00:25.70 |
-28:15:50.3 |
HIP 88157 |
21.44 |
| 2026-05-26 12:00 |
18:00:15.28 |
-28:15:58.6 |
HIP 88157 |
21.29 |
| 2026-05-27 00:00 |
18:00:04.79 |
-28:16:06.7 |
HIP 88157 |
21.39 |
| 2026-05-27 12:00 |
17:59:54.25 |
-28:16:14.7 |
HIP 88157 |
21.75 |
| 2026-05-28 00:00 |
17:59:43.65 |
-28:16:22.5 |
HIP 88157 |
22.34 |
| 2026-05-28 12:00 |
17:59:33.00 |
-28:16:30.1 |
HIP 88157 |
23.17 |
| 2026-05-29 00:00 |
17:59:22.29 |
-28:16:37.5 |
HIP 88157 |
24.20 |
| 2026-05-29 12:00 |
17:59:11.52 |
-28:16:44.8 |
HIP 87903 |
24.85 |
| 2026-05-30 00:00 |
17:59:00.71 |
-28:16:51.9 |
HIP 87903 |
22.56 |
| 2026-05-30 12:00 |
17:58:49.84 |
-28:16:58.8 |
HIP 87903 |
20.28 |
| 2026-05-31 00:00 |
17:58:38.92 |
-28:17:05.5 |
HIP 87903 |
18.02 |
| 2026-05-31 12:00 |
17:58:27.96 |
-28:17:12.1 |
HIP 87903 |
15.79 |
| 2026-06-01 00:00 |
17:58:16.94 |
-28:17:18.4 |
HIP 87903 |
13.62 |
| 2026-06-01 12:00 |
17:58:05.88 |
-28:17:24.6 |
HIP 87903 |
11.54 |
| 2026-06-02 00:00 |
17:57:54.78 |
-28:17:30.6 |
HIP 87903 |
9.62 |