メタデータ
| 項目 |
値 |
| Designation |
315P/LONEOS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-12-07T07:13:42.444480Z |
| Orbit solution date (soln_date, UTC) |
2025-11-25T15:42:35Z |
| Obs used |
2369 |
| NEO |
- |
| M1 |
10.700 |
| K1 |
10.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-10-14.0000000 |
| e |
0.51637548 |
| q (au) |
2.429183 |
| a (au) |
5.022870 |
| i (deg) |
17.906607 |
| Ω (om, deg) |
69.600919 |
| ω (w, deg) |
66.946020 |
| M (ma, deg) |
227.329282 |
等級
散乱 + 全体線形
$$
M_a = (14.721 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
14.721 |
| n |
2.000 |
| gf |
0.997 |
| gb |
-0.917 |
| k |
0.999 |
| δ90 |
9.999 |
| 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) |
| 2026-09-20 00:00 |
03:24:41.52 |
+07:10:59.3 |
HIP 15875 |
12.31 |
| 2026-09-20 12:00 |
03:24:38.54 |
+07:10:40.7 |
HIP 15875 |
11.83 |
| 2026-09-21 00:00 |
03:24:35.29 |
+07:10:21.5 |
HIP 15875 |
11.37 |
| 2026-09-21 12:00 |
03:24:31.77 |
+07:10:01.9 |
HIP 15875 |
10.95 |
| 2026-09-22 00:00 |
03:24:27.98 |
+07:09:41.7 |
HIP 15875 |
10.59 |
| 2026-09-22 12:00 |
03:24:23.92 |
+07:09:21.1 |
HIP 15875 |
10.31 |
| 2026-09-23 00:00 |
03:24:19.59 |
+07:09:00.0 |
HIP 15875 |
10.14 |
| 2026-09-23 12:00 |
03:24:14.99 |
+07:08:38.3 |
HIP 15875 |
10.12 |
| 2026-09-24 00:00 |
03:24:10.12 |
+07:08:16.2 |
HIP 15875 |
10.25 |
| 2026-09-24 12:00 |
03:24:04.98 |
+07:07:53.6 |
HIP 15875 |
10.57 |
| 2026-09-25 00:00 |
03:23:59.57 |
+07:07:30.5 |
HIP 15875 |
11.07 |
| 2026-09-25 12:00 |
03:23:53.89 |
+07:07:07.0 |
HIP 15875 |
11.77 |
| 2026-09-26 00:00 |
03:23:47.93 |
+07:06:43.1 |
HIP 15875 |
12.65 |
| 2026-09-26 12:00 |
03:23:41.71 |
+07:06:18.7 |
HIP 15875 |
13.69 |
| 2026-09-27 00:00 |
03:23:35.21 |
+07:05:53.9 |
HIP 15875 |
14.89 |
| 2026-09-27 12:00 |
03:23:28.44 |
+07:05:28.7 |
HIP 15875 |
16.24 |
| 2026-09-28 00:00 |
03:23:21.40 |
+07:05:03.1 |
HIP 15875 |
17.71 |
| 2026-09-28 12:00 |
03:23:14.08 |
+07:04:37.1 |
HIP 15738 |
17.95 |
| 2026-09-29 00:00 |
03:23:06.49 |
+07:04:10.7 |
HIP 15738 |
16.91 |
| 2026-09-29 12:00 |
03:22:58.63 |
+07:03:43.9 |
HIP 15738 |
16.02 |
| 2026-09-30 00:00 |
03:22:50.50 |
+07:03:16.8 |
HIP 15738 |
15.33 |
| 2026-09-30 12:00 |
03:22:42.09 |
+07:02:49.3 |
HIP 15738 |
14.89 |
| 2026-10-01 00:00 |
03:22:33.41 |
+07:02:21.4 |
HIP 15738 |
14.77 |
| 2026-10-01 12:00 |
03:22:24.46 |
+07:01:53.2 |
HIP 15738 |
14.99 |
| 2026-10-02 00:00 |
03:22:15.24 |
+07:01:24.7 |
HIP 15738 |
15.57 |
| 2026-10-02 12:00 |
03:22:05.74 |
+07:00:55.8 |
HIP 15738 |
16.51 |
| 2026-10-03 00:00 |
03:21:55.97 |
+07:00:26.7 |
HIP 15738 |
17.77 |
| 2026-10-03 12:00 |
03:21:45.93 |
+06:59:57.2 |
HIP 15738 |
19.31 |
| 2026-10-04 00:00 |
03:21:35.62 |
+06:59:27.5 |
HIP 15738 |
21.10 |
| 2026-10-04 12:00 |
03:21:25.04 |
+06:58:57.5 |
HIP 15738 |
23.11 |
| 2026-10-05 00:00 |
03:21:14.19 |
+06:58:27.3 |
HIP 15738 |
25.30 |
| 2026-10-05 12:00 |
03:21:03.07 |
+06:57:56.8 |
HIP 15738 |
27.65 |
| 2026-10-06 00:00 |
03:20:51.68 |
+06:57:26.1 |
HIP 15738 |
30.14 |
| 2026-10-06 12:00 |
03:20:40.02 |
+06:56:55.1 |
HIP 15593 |
31.01 |
| 2026-10-07 00:00 |
03:20:28.10 |
+06:56:24.0 |
HIP 15593 |
30.86 |
| 2026-10-07 12:00 |
03:20:15.91 |
+06:55:52.7 |
HIP 15433 |
29.78 |
| 2026-10-08 00:00 |
03:20:03.45 |
+06:55:21.2 |
HIP 15433 |
28.14 |
| 2026-10-08 12:00 |
03:19:50.74 |
+06:54:49.5 |
HIP 15433 |
26.74 |
| 2026-10-09 00:00 |
03:19:37.76 |
+06:54:17.7 |
HIP 15433 |
25.64 |
| 2026-10-09 12:00 |
03:19:24.52 |
+06:53:45.8 |
HIP 15433 |
24.90 |
| 2026-10-10 00:00 |
03:19:11.02 |
+06:53:13.8 |
HIP 15433 |
24.58 |
| 2026-10-10 12:00 |
03:18:57.26 |
+06:52:41.7 |
HIP 15433 |
24.73 |
| 2026-10-11 00:00 |
03:18:43.25 |
+06:52:09.5 |
HIP 15279 |
23.77 |