メタデータ
| 項目 |
値 |
| Designation |
P/2015 TP200 (LINEAR) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-10-28T04:52:00.001920Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:16Z |
| Obs used |
693 |
| NEO |
- |
| M1 |
6.800 |
| K1 |
15.750 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-11-16.0000000 |
| e |
0.53612967 |
| q (au) |
3.385307 |
| a (au) |
7.297961 |
| i (deg) |
8.772293 |
| Ω (om, deg) |
6.975445 |
| ω (w, deg) |
82.735610 |
| M (ma, deg) |
0.939714 |
等級
散乱 + 全体線形
$$
M_a = (11.546 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
11.546 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.957 |
| δ90 |
1.000 |
| 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) |
| 2026-03-26 00:00 |
18:09:09.90 |
-32:08:18.6 |
HIP 89016 |
11.26 |
| 2026-03-26 12:00 |
18:09:11.97 |
-32:08:43.0 |
HIP 89016 |
10.82 |
| 2026-03-27 00:00 |
18:09:13.93 |
-32:09:07.4 |
HIP 89016 |
10.42 |
| 2026-03-27 12:00 |
18:09:15.79 |
-32:09:31.9 |
HIP 89016 |
10.05 |
| 2026-03-28 00:00 |
18:09:17.54 |
-32:09:56.4 |
HIP 89016 |
9.73 |
| 2026-03-28 12:00 |
18:09:19.18 |
-32:10:21.0 |
HIP 89016 |
9.45 |
| 2026-03-29 00:00 |
18:09:20.72 |
-32:10:45.6 |
HIP 89016 |
9.22 |
| 2026-03-29 12:00 |
18:09:22.15 |
-32:11:10.2 |
HIP 89016 |
9.03 |
| 2026-03-30 00:00 |
18:09:23.48 |
-32:11:34.9 |
HIP 89016 |
8.89 |
| 2026-03-30 12:00 |
18:09:24.70 |
-32:11:59.6 |
HIP 89016 |
8.80 |
| 2026-03-31 00:00 |
18:09:25.82 |
-32:12:24.3 |
HIP 89016 |
8.75 |
| 2026-03-31 12:00 |
18:09:26.82 |
-32:12:49.0 |
HIP 89016 |
8.75 |
| 2026-04-01 00:00 |
18:09:27.72 |
-32:13:13.8 |
HIP 89016 |
8.79 |
| 2026-04-01 12:00 |
18:09:28.52 |
-32:13:38.6 |
HIP 89016 |
8.87 |
| 2026-04-02 00:00 |
18:09:29.21 |
-32:14:03.5 |
HIP 89016 |
9.00 |
| 2026-04-02 12:00 |
18:09:29.79 |
-32:14:28.3 |
HIP 89016 |
9.16 |
| 2026-04-03 00:00 |
18:09:30.26 |
-32:14:53.2 |
HIP 89016 |
9.35 |
| 2026-04-03 12:00 |
18:09:30.63 |
-32:15:18.1 |
HIP 89016 |
9.58 |
| 2026-04-04 00:00 |
18:09:30.89 |
-32:15:43.0 |
HIP 89016 |
9.84 |
| 2026-04-04 12:00 |
18:09:31.04 |
-32:16:07.9 |
HIP 89016 |
10.12 |
| 2026-04-05 00:00 |
18:09:31.09 |
-32:16:32.9 |
HIP 89016 |
10.42 |
| 2026-04-05 12:00 |
18:09:31.03 |
-32:16:57.8 |
HIP 89016 |
10.75 |
| 2026-04-06 00:00 |
18:09:30.86 |
-32:17:22.8 |
HIP 89016 |
11.10 |
| 2026-04-06 12:00 |
18:09:30.58 |
-32:17:47.8 |
HIP 89016 |
11.46 |
| 2026-04-07 00:00 |
18:09:30.20 |
-32:18:12.7 |
HIP 89016 |
11.85 |
| 2026-04-07 12:00 |
18:09:29.71 |
-32:18:37.7 |
HIP 89016 |
12.25 |
| 2026-04-08 00:00 |
18:09:29.11 |
-32:19:02.7 |
HIP 89016 |
12.66 |
| 2026-04-08 12:00 |
18:09:28.40 |
-32:19:27.7 |
HIP 89016 |
13.09 |
| 2026-04-09 00:00 |
18:09:27.59 |
-32:19:52.7 |
HIP 89016 |
13.53 |
| 2026-04-09 12:00 |
18:09:26.67 |
-32:20:17.7 |
HIP 89016 |
13.98 |
| 2026-04-10 00:00 |
18:09:25.64 |
-32:20:42.6 |
HIP 89016 |
14.45 |
| 2026-04-10 12:00 |
18:09:24.50 |
-32:21:07.6 |
HIP 89016 |
14.93 |
| 2026-04-11 00:00 |
18:09:23.26 |
-32:21:32.6 |
HIP 89016 |
15.42 |
| 2026-04-11 12:00 |
18:09:21.91 |
-32:21:57.5 |
HIP 89016 |
15.93 |
| 2026-04-12 00:00 |
18:09:20.45 |
-32:22:22.4 |
HIP 89016 |
16.44 |
| 2026-04-12 12:00 |
18:09:18.88 |
-32:22:47.4 |
HIP 89016 |
16.97 |
| 2026-04-13 00:00 |
18:09:17.21 |
-32:23:12.3 |
HIP 89016 |
17.51 |
| 2026-04-13 12:00 |
18:09:15.43 |
-32:23:37.1 |
HIP 89016 |
18.07 |
| 2026-04-14 00:00 |
18:09:13.54 |
-32:24:02.0 |
HIP 89016 |
18.63 |
| 2026-04-14 12:00 |
18:09:11.54 |
-32:24:26.8 |
HIP 89016 |
19.21 |
| 2026-04-15 00:00 |
18:09:09.44 |
-32:24:51.6 |
HIP 89016 |
19.81 |
| 2026-04-15 12:00 |
18:09:07.23 |
-32:25:16.4 |
HIP 89016 |
20.41 |
| 2026-04-16 00:00 |
18:09:04.91 |
-32:25:41.1 |
HIP 89010 |
20.97 |