メタデータ
| 項目 |
値 |
| Designation |
C/2015 V3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2015-11-24T20:48:06.068160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:16Z |
| Obs used |
99 |
| NEO |
- |
| M1 |
7.300 |
| K1 |
15.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-01-24.0000000 |
| e |
0.99484386 |
| q (au) |
4.235691 |
| a (au) |
821.484531 |
| i (deg) |
86.231771 |
| Ω (om, deg) |
2.340885 |
| ω (w, deg) |
0.821275 |
| M (ma, deg) |
0.002517 |
等級
散乱 + 全体線形
$$
M_a = (6.207 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.207 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-06-01 00:00 |
13:22:31.71 |
+46:26:13.7 |
HIP 65326 |
20.67 |
| 2026-06-01 12:00 |
13:22:26.79 |
+46:25:29.7 |
HIP 65326 |
20.37 |
| 2026-06-02 00:00 |
13:22:21.93 |
+46:24:45.3 |
HIP 65326 |
20.13 |
| 2026-06-02 12:00 |
13:22:17.11 |
+46:24:00.4 |
HIP 65326 |
19.93 |
| 2026-06-03 00:00 |
13:22:12.33 |
+46:23:15.1 |
HIP 65326 |
19.79 |
| 2026-06-03 12:00 |
13:22:07.61 |
+46:22:29.4 |
HIP 65326 |
19.69 |
| 2026-06-04 00:00 |
13:22:02.94 |
+46:21:43.3 |
HIP 65326 |
19.65 |
| 2026-06-04 12:00 |
13:21:58.31 |
+46:20:56.8 |
HIP 65326 |
19.67 |
| 2026-06-05 00:00 |
13:21:53.74 |
+46:20:09.8 |
HIP 65326 |
19.73 |
| 2026-06-05 12:00 |
13:21:49.21 |
+46:19:22.4 |
HIP 65060 |
19.80 |
| 2026-06-06 00:00 |
13:21:44.74 |
+46:18:34.7 |
HIP 65060 |
19.55 |
| 2026-06-06 12:00 |
13:21:40.31 |
+46:17:46.5 |
HIP 65060 |
19.36 |
| 2026-06-07 00:00 |
13:21:35.94 |
+46:16:57.9 |
HIP 65060 |
19.25 |
| 2026-06-07 12:00 |
13:21:31.62 |
+46:16:09.0 |
HIP 65060 |
19.21 |
| 2026-06-08 00:00 |
13:21:27.35 |
+46:15:19.6 |
HIP 65060 |
19.25 |
| 2026-06-08 12:00 |
13:21:23.12 |
+46:14:29.8 |
HIP 65060 |
19.36 |
| 2026-06-09 00:00 |
13:21:18.96 |
+46:13:39.7 |
HIP 65060 |
19.54 |
| 2026-06-09 12:00 |
13:21:14.84 |
+46:12:49.2 |
HIP 65060 |
19.79 |
| 2026-06-10 00:00 |
13:21:10.77 |
+46:11:58.3 |
HIP 65060 |
20.11 |
| 2026-06-10 12:00 |
13:21:06.76 |
+46:11:07.0 |
HIP 65060 |
20.50 |
| 2026-06-11 00:00 |
13:21:02.80 |
+46:10:15.4 |
HIP 65060 |
20.94 |
| 2026-06-11 12:00 |
13:20:58.89 |
+46:09:23.3 |
HIP 65060 |
21.44 |
| 2026-06-12 00:00 |
13:20:55.03 |
+46:08:31.0 |
HIP 65060 |
21.99 |
| 2026-06-12 12:00 |
13:20:51.23 |
+46:07:38.2 |
HIP 65060 |
22.59 |
| 2026-06-13 00:00 |
13:20:47.48 |
+46:06:45.1 |
HIP 65060 |
23.24 |
| 2026-06-13 12:00 |
13:20:43.78 |
+46:05:51.7 |
HIP 65060 |
23.92 |
| 2026-06-14 00:00 |
13:20:40.14 |
+46:04:57.9 |
HIP 65060 |
24.65 |
| 2026-06-14 12:00 |
13:20:36.55 |
+46:04:03.7 |
HIP 65060 |
25.40 |
| 2026-06-15 00:00 |
13:20:33.02 |
+46:03:09.2 |
HIP 65060 |
26.19 |
| 2026-06-15 12:00 |
13:20:29.54 |
+46:02:14.4 |
HIP 65060 |
27.01 |
| 2026-06-16 00:00 |
13:20:26.11 |
+46:01:19.2 |
HIP 65060 |
27.85 |
| 2026-06-16 12:00 |
13:20:22.74 |
+46:00:23.7 |
HIP 65060 |
28.72 |
| 2026-06-17 00:00 |
13:20:19.42 |
+45:59:27.9 |
HIP 64860 |
28.24 |
| 2026-06-17 12:00 |
13:20:16.16 |
+45:58:31.8 |
HIP 64860 |
27.50 |
| 2026-06-18 00:00 |
13:20:12.95 |
+45:57:35.4 |
HIP 64860 |
26.78 |
| 2026-06-18 12:00 |
13:20:09.80 |
+45:56:38.6 |
HIP 65006 |
26.07 |
| 2026-06-19 00:00 |
13:20:06.70 |
+45:55:41.5 |
HIP 65006 |
25.00 |
| 2026-06-19 12:00 |
13:20:03.66 |
+45:54:44.2 |
HIP 65006 |
23.94 |
| 2026-06-20 00:00 |
13:20:00.68 |
+45:53:46.5 |
HIP 65006 |
22.88 |
| 2026-06-20 12:00 |
13:19:57.74 |
+45:52:48.6 |
HIP 65006 |
21.82 |
| 2026-06-21 00:00 |
13:19:54.87 |
+45:51:50.3 |
HIP 65006 |
20.75 |
| 2026-06-21 12:00 |
13:19:52.05 |
+45:50:51.8 |
HIP 65006 |
19.69 |
| 2026-06-22 00:00 |
13:19:49.28 |
+45:49:53.0 |
HIP 65006 |
18.64 |