メタデータ
| 項目 |
値 |
| Designation |
C/2016 K1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-07-13T09:05:23.239680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:24Z |
| Obs used |
310 |
| NEO |
- |
| M1 |
8.900 |
| K1 |
22.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2016-07-28.0000000 |
| e |
1.00027414 |
| q (au) |
2.291522 |
| a (au) |
-8358.942288 |
| i (deg) |
90.845997 |
| Ω (om, deg) |
325.702598 |
| ω (w, deg) |
18.253429 |
| M (ma, deg) |
0.000019 |
等級
散乱 + 全体線形
$$
M_a = (10.799 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
10.799 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.501 |
| 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) |
| 2026-03-26 00:00 |
10:14:52.57 |
+30:57:21.8 |
HIP 50150 |
15.55 |
| 2026-03-26 12:00 |
10:14:47.63 |
+30:57:22.4 |
HIP 50150 |
15.04 |
| 2026-03-27 00:00 |
10:14:42.71 |
+30:57:22.6 |
HIP 50150 |
14.60 |
| 2026-03-27 12:00 |
10:14:37.82 |
+30:57:22.5 |
HIP 50150 |
14.23 |
| 2026-03-28 00:00 |
10:14:32.97 |
+30:57:22.1 |
HIP 50150 |
13.93 |
| 2026-03-28 12:00 |
10:14:28.15 |
+30:57:21.4 |
HIP 50150 |
13.72 |
| 2026-03-29 00:00 |
10:14:23.35 |
+30:57:20.3 |
HIP 50150 |
13.58 |
| 2026-03-29 12:00 |
10:14:18.60 |
+30:57:18.9 |
HIP 50150 |
13.53 |
| 2026-03-30 00:00 |
10:14:13.87 |
+30:57:17.1 |
HIP 50150 |
13.56 |
| 2026-03-30 12:00 |
10:14:09.18 |
+30:57:15.1 |
HIP 50150 |
13.67 |
| 2026-03-31 00:00 |
10:14:04.52 |
+30:57:12.7 |
HIP 50150 |
13.86 |
| 2026-03-31 12:00 |
10:13:59.89 |
+30:57:10.0 |
HIP 50150 |
14.11 |
| 2026-04-01 00:00 |
10:13:55.30 |
+30:57:06.9 |
HIP 50150 |
14.44 |
| 2026-04-01 12:00 |
10:13:50.74 |
+30:57:03.5 |
HIP 50150 |
14.82 |
| 2026-04-02 00:00 |
10:13:46.21 |
+30:56:59.9 |
HIP 50150 |
15.26 |
| 2026-04-02 12:00 |
10:13:41.72 |
+30:56:55.8 |
HIP 50150 |
15.75 |
| 2026-04-03 00:00 |
10:13:37.27 |
+30:56:51.5 |
HIP 50150 |
16.28 |
| 2026-04-03 12:00 |
10:13:32.85 |
+30:56:46.9 |
HIP 50150 |
16.85 |
| 2026-04-04 00:00 |
10:13:28.47 |
+30:56:41.9 |
HIP 50150 |
17.46 |
| 2026-04-04 12:00 |
10:13:24.12 |
+30:56:36.6 |
HIP 50150 |
18.09 |
| 2026-04-05 00:00 |
10:13:19.81 |
+30:56:30.9 |
HIP 50150 |
18.74 |
| 2026-04-05 12:00 |
10:13:15.53 |
+30:56:25.0 |
HIP 50150 |
19.42 |
| 2026-04-06 00:00 |
10:13:11.29 |
+30:56:18.7 |
HIP 50150 |
20.12 |
| 2026-04-06 12:00 |
10:13:07.09 |
+30:56:12.2 |
HIP 50150 |
20.83 |
| 2026-04-07 00:00 |
10:13:02.93 |
+30:56:05.3 |
HIP 50150 |
21.55 |
| 2026-04-07 12:00 |
10:12:58.80 |
+30:55:58.0 |
HIP 49914 |
21.01 |
| 2026-04-08 00:00 |
10:12:54.71 |
+30:55:50.5 |
HIP 49914 |
20.16 |
| 2026-04-08 12:00 |
10:12:50.66 |
+30:55:42.7 |
HIP 49914 |
19.31 |
| 2026-04-09 00:00 |
10:12:46.65 |
+30:55:34.5 |
HIP 49914 |
18.47 |
| 2026-04-09 12:00 |
10:12:42.68 |
+30:55:26.0 |
HIP 49914 |
17.64 |
| 2026-04-10 00:00 |
10:12:38.74 |
+30:55:17.2 |
HIP 49914 |
16.81 |
| 2026-04-10 12:00 |
10:12:34.84 |
+30:55:08.1 |
HIP 49914 |
16.00 |
| 2026-04-11 00:00 |
10:12:30.99 |
+30:54:58.7 |
HIP 49914 |
15.19 |
| 2026-04-11 12:00 |
10:12:27.17 |
+30:54:49.0 |
HIP 49914 |
14.39 |
| 2026-04-12 00:00 |
10:12:23.39 |
+30:54:38.9 |
HIP 49914 |
13.61 |
| 2026-04-12 12:00 |
10:12:19.66 |
+30:54:28.5 |
HIP 49914 |
12.83 |
| 2026-04-13 00:00 |
10:12:15.96 |
+30:54:17.9 |
HIP 49914 |
12.06 |
| 2026-04-13 12:00 |
10:12:12.30 |
+30:54:06.9 |
HIP 49914 |
11.31 |
| 2026-04-14 00:00 |
10:12:08.69 |
+30:53:55.6 |
HIP 49914 |
10.56 |
| 2026-04-14 12:00 |
10:12:05.12 |
+30:53:44.0 |
HIP 49914 |
9.83 |
| 2026-04-15 00:00 |
10:12:01.58 |
+30:53:32.1 |
HIP 49914 |
9.11 |
| 2026-04-15 12:00 |
10:11:58.09 |
+30:53:19.9 |
HIP 49914 |
8.40 |
| 2026-04-16 00:00 |
10:11:54.64 |
+30:53:07.4 |
HIP 49914 |
7.71 |