メタデータ
| 項目 |
値 |
| Designation |
C/1999 K3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1999-02-27T12:41:00.576960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:59Z |
| Obs used |
56 |
| NEO |
- |
| M1 |
12.000 |
| K1 |
10.000 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
1999-06-05.0000000 |
| e |
0.99166663 |
| q (au) |
1.928739 |
| a (au) |
231.447744 |
| i (deg) |
92.272667 |
| Ω (om, deg) |
266.912524 |
| ω (w, deg) |
341.146990 |
| M (ma, deg) |
0.027284 |
等級
散乱 + 全体線形
$$
M_a = (16.929 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
16.929 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-05-12 00:00 |
05:45:11.27 |
+63:31:15.4 |
HIP 27199 |
14.34 |
| 2026-05-12 12:00 |
05:45:15.67 |
+63:31:00.7 |
HIP 27199 |
13.94 |
| 2026-05-13 00:00 |
05:45:20.09 |
+63:30:46.2 |
HIP 27199 |
13.56 |
| 2026-05-13 12:00 |
05:45:24.54 |
+63:30:31.8 |
HIP 27199 |
13.20 |
| 2026-05-14 00:00 |
05:45:29.01 |
+63:30:17.6 |
HIP 27199 |
12.84 |
| 2026-05-14 12:00 |
05:45:33.50 |
+63:30:03.5 |
HIP 27199 |
12.51 |
| 2026-05-15 00:00 |
05:45:38.02 |
+63:29:49.7 |
HIP 27199 |
12.19 |
| 2026-05-15 12:00 |
05:45:42.56 |
+63:29:35.9 |
HIP 27199 |
11.90 |
| 2026-05-16 00:00 |
05:45:47.12 |
+63:29:22.4 |
HIP 27199 |
11.62 |
| 2026-05-16 12:00 |
05:45:51.70 |
+63:29:09.0 |
HIP 27199 |
11.37 |
| 2026-05-17 00:00 |
05:45:56.31 |
+63:28:55.8 |
HIP 27199 |
11.15 |
| 2026-05-17 12:00 |
05:46:00.94 |
+63:28:42.7 |
HIP 27199 |
10.95 |
| 2026-05-18 00:00 |
05:46:05.59 |
+63:28:29.9 |
HIP 27199 |
10.78 |
| 2026-05-18 12:00 |
05:46:10.26 |
+63:28:17.2 |
HIP 27199 |
10.64 |
| 2026-05-19 00:00 |
05:46:14.95 |
+63:28:04.6 |
HIP 27199 |
10.54 |
| 2026-05-19 12:00 |
05:46:19.67 |
+63:27:52.2 |
HIP 27199 |
10.46 |
| 2026-05-20 00:00 |
05:46:24.40 |
+63:27:40.0 |
HIP 27199 |
10.42 |
| 2026-05-20 12:00 |
05:46:29.15 |
+63:27:28.0 |
HIP 27199 |
10.41 |
| 2026-05-21 00:00 |
05:46:33.92 |
+63:27:16.2 |
HIP 27199 |
10.44 |
| 2026-05-21 12:00 |
05:46:38.71 |
+63:27:04.5 |
HIP 27199 |
10.51 |
| 2026-05-22 00:00 |
05:46:43.52 |
+63:26:53.0 |
HIP 27346 |
10.55 |
| 2026-05-22 12:00 |
05:46:48.34 |
+63:26:41.6 |
HIP 27346 |
10.45 |
| 2026-05-23 00:00 |
05:46:53.19 |
+63:26:30.5 |
HIP 27346 |
10.38 |
| 2026-05-23 12:00 |
05:46:58.05 |
+63:26:19.5 |
HIP 27346 |
10.33 |
| 2026-05-24 00:00 |
05:47:02.93 |
+63:26:08.6 |
HIP 27346 |
10.32 |
| 2026-05-24 12:00 |
05:47:07.83 |
+63:25:58.0 |
HIP 27346 |
10.33 |
| 2026-05-25 00:00 |
05:47:12.74 |
+63:25:47.5 |
HIP 27346 |
10.37 |
| 2026-05-25 12:00 |
05:47:17.67 |
+63:25:37.2 |
HIP 27346 |
10.44 |
| 2026-05-26 00:00 |
05:47:22.61 |
+63:25:27.1 |
HIP 27346 |
10.53 |
| 2026-05-26 12:00 |
05:47:27.57 |
+63:25:17.1 |
HIP 27346 |
10.66 |
| 2026-05-27 00:00 |
05:47:32.55 |
+63:25:07.4 |
HIP 27346 |
10.81 |
| 2026-05-27 12:00 |
05:47:37.54 |
+63:24:57.8 |
HIP 27346 |
10.98 |
| 2026-05-28 00:00 |
05:47:42.54 |
+63:24:48.4 |
HIP 27346 |
11.18 |
| 2026-05-28 12:00 |
05:47:47.56 |
+63:24:39.1 |
HIP 27346 |
11.40 |
| 2026-05-29 00:00 |
05:47:52.59 |
+63:24:30.0 |
HIP 27346 |
11.65 |
| 2026-05-29 12:00 |
05:47:57.64 |
+63:24:21.1 |
HIP 27346 |
11.92 |
| 2026-05-30 00:00 |
05:48:02.70 |
+63:24:12.4 |
HIP 27346 |
12.20 |
| 2026-05-30 12:00 |
05:48:07.77 |
+63:24:03.9 |
HIP 27346 |
12.51 |
| 2026-05-31 00:00 |
05:48:12.86 |
+63:23:55.5 |
HIP 27346 |
12.83 |
| 2026-05-31 12:00 |
05:48:17.96 |
+63:23:47.3 |
HIP 27346 |
13.17 |
| 2026-06-01 00:00 |
05:48:23.07 |
+63:23:39.3 |
HIP 27346 |
13.52 |
| 2026-06-01 12:00 |
05:48:28.19 |
+63:23:31.5 |
HIP 27346 |
13.88 |
| 2026-06-02 00:00 |
05:48:33.32 |
+63:23:23.9 |
HIP 27346 |
14.26 |