メタデータ
| 項目 |
値 |
| Designation |
193P/LINEAR-NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-11-24T15:42:23.192640Z |
| Orbit solution date (soln_date, UTC) |
2024-08-25T21:12:14Z |
| Obs used |
944 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
27.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2015-07-11.0000000 |
| e |
0.39417816 |
| q (au) |
2.166103 |
| a (au) |
3.575479 |
| i (deg) |
10.686952 |
| Ω (om, deg) |
335.193501 |
| ω (w, deg) |
8.435134 |
| M (ma, deg) |
33.288578 |
等級
散乱 + 全体線形
$$
M_a = (16.321 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.321 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.603 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
12:19:00.79 |
-11:42:04.2 |
HIP 60237 |
34.01 |
| 2026-06-01 12:00 |
12:18:58.03 |
-11:41:12.8 |
HIP 60237 |
34.32 |
| 2026-06-02 00:00 |
12:18:55.49 |
-11:40:22.6 |
HIP 60237 |
34.61 |
| 2026-06-02 12:00 |
12:18:53.18 |
-11:39:33.7 |
HIP 60237 |
34.88 |
| 2026-06-03 00:00 |
12:18:51.09 |
-11:38:46.0 |
HIP 60237 |
35.13 |
| 2026-06-03 12:00 |
12:18:49.23 |
-11:37:59.5 |
HIP 60237 |
35.36 |
| 2026-06-04 00:00 |
12:18:47.59 |
-11:37:14.3 |
HIP 60237 |
35.56 |
| 2026-06-04 12:00 |
12:18:46.17 |
-11:36:30.4 |
HIP 60237 |
35.73 |
| 2026-06-05 00:00 |
12:18:44.98 |
-11:35:47.8 |
HIP 60237 |
35.87 |
| 2026-06-05 12:00 |
12:18:44.01 |
-11:35:06.4 |
HIP 60237 |
35.98 |
| 2026-06-06 00:00 |
12:18:43.27 |
-11:34:26.3 |
HIP 60237 |
36.05 |
| 2026-06-06 12:00 |
12:18:42.75 |
-11:33:47.4 |
HIP 59956 |
35.58 |
| 2026-06-07 00:00 |
12:18:42.45 |
-11:33:09.9 |
HIP 59956 |
34.97 |
| 2026-06-07 12:00 |
12:18:42.37 |
-11:32:33.6 |
HIP 59956 |
34.41 |
| 2026-06-08 00:00 |
12:18:42.52 |
-11:31:58.7 |
HIP 59956 |
33.88 |
| 2026-06-08 12:00 |
12:18:42.89 |
-11:31:25.0 |
HIP 59956 |
33.39 |
| 2026-06-09 00:00 |
12:18:43.48 |
-11:30:52.7 |
HIP 59956 |
32.95 |
| 2026-06-09 12:00 |
12:18:44.29 |
-11:30:21.7 |
HIP 59956 |
32.56 |
| 2026-06-10 00:00 |
12:18:45.32 |
-11:29:51.9 |
HIP 59956 |
32.21 |
| 2026-06-10 12:00 |
12:18:46.58 |
-11:29:23.5 |
HIP 59956 |
31.91 |
| 2026-06-11 00:00 |
12:18:48.05 |
-11:28:56.4 |
HIP 59956 |
31.66 |
| 2026-06-11 12:00 |
12:18:49.74 |
-11:28:30.6 |
HIP 59956 |
31.47 |
| 2026-06-12 00:00 |
12:18:51.66 |
-11:28:06.2 |
HIP 59956 |
31.33 |
| 2026-06-12 12:00 |
12:18:53.79 |
-11:27:43.1 |
HIP 59956 |
31.25 |
| 2026-06-13 00:00 |
12:18:56.14 |
-11:27:21.3 |
HIP 59956 |
31.22 |
| 2026-06-13 12:00 |
12:18:58.71 |
-11:27:00.9 |
HIP 59956 |
31.26 |
| 2026-06-14 00:00 |
12:19:01.49 |
-11:26:41.7 |
HIP 60236 |
31.17 |
| 2026-06-14 12:00 |
12:19:04.50 |
-11:26:24.0 |
HIP 60236 |
30.45 |
| 2026-06-15 00:00 |
12:19:07.72 |
-11:26:07.5 |
HIP 60236 |
29.69 |
| 2026-06-15 12:00 |
12:19:11.15 |
-11:25:52.5 |
HIP 60236 |
28.87 |
| 2026-06-16 00:00 |
12:19:14.81 |
-11:25:38.7 |
HIP 60236 |
28.00 |
| 2026-06-16 12:00 |
12:19:18.67 |
-11:25:26.3 |
HIP 60236 |
27.08 |
| 2026-06-17 00:00 |
12:19:22.75 |
-11:25:15.3 |
HIP 60236 |
26.11 |
| 2026-06-17 12:00 |
12:19:27.04 |
-11:25:05.6 |
HIP 60236 |
25.09 |
| 2026-06-18 00:00 |
12:19:31.55 |
-11:24:57.2 |
HIP 60236 |
24.02 |
| 2026-06-18 12:00 |
12:19:36.27 |
-11:24:50.2 |
HIP 60236 |
22.90 |
| 2026-06-19 00:00 |
12:19:41.20 |
-11:24:44.6 |
HIP 60236 |
21.72 |
| 2026-06-19 12:00 |
12:19:46.33 |
-11:24:40.3 |
HIP 60236 |
20.50 |
| 2026-06-20 00:00 |
12:19:51.68 |
-11:24:37.3 |
HIP 60236 |
19.22 |
| 2026-06-20 12:00 |
12:19:57.23 |
-11:24:35.6 |
HIP 60236 |
17.90 |
| 2026-06-21 00:00 |
12:20:03.00 |
-11:24:35.3 |
HIP 60236 |
16.52 |
| 2026-06-21 12:00 |
12:20:08.96 |
-11:24:36.4 |
HIP 60236 |
15.10 |
| 2026-06-22 00:00 |
12:20:15.14 |
-11:24:38.8 |
HIP 60236 |
13.64 |