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) |
| 2026-03-26 00:00 |
05:40:47.57 |
+64:04:06.8 |
HIP 26408 |
23.77 |
| 2026-03-26 12:00 |
05:40:48.45 |
+64:03:41.4 |
HIP 26408 |
23.96 |
| 2026-03-27 00:00 |
05:40:49.39 |
+64:03:16.0 |
HIP 26408 |
24.16 |
| 2026-03-27 12:00 |
05:40:50.37 |
+64:02:50.7 |
HIP 26408 |
24.38 |
| 2026-03-28 00:00 |
05:40:51.40 |
+64:02:25.4 |
HIP 26408 |
24.60 |
| 2026-03-28 12:00 |
05:40:52.48 |
+64:02:00.2 |
HIP 26408 |
24.84 |
| 2026-03-29 00:00 |
05:40:53.60 |
+64:01:35.1 |
HIP 26408 |
25.08 |
| 2026-03-29 12:00 |
05:40:54.77 |
+64:01:10.0 |
HIP 26408 |
25.34 |
| 2026-03-30 00:00 |
05:40:55.99 |
+64:00:45.0 |
HIP 26408 |
25.60 |
| 2026-03-30 12:00 |
05:40:57.25 |
+64:00:20.0 |
HIP 26408 |
25.88 |
| 2026-03-31 00:00 |
05:40:58.56 |
+63:59:55.1 |
HIP 26408 |
26.16 |
| 2026-03-31 12:00 |
05:40:59.91 |
+63:59:30.3 |
HIP 26408 |
26.45 |
| 2026-04-01 00:00 |
05:41:01.31 |
+63:59:05.5 |
HIP 26408 |
26.75 |
| 2026-04-01 12:00 |
05:41:02.75 |
+63:58:40.9 |
HIP 26408 |
27.06 |
| 2026-04-02 00:00 |
05:41:04.24 |
+63:58:16.2 |
HIP 26408 |
27.38 |
| 2026-04-02 12:00 |
05:41:05.78 |
+63:57:51.7 |
HIP 26408 |
27.70 |
| 2026-04-03 00:00 |
05:41:07.36 |
+63:57:27.2 |
HIP 26408 |
28.03 |
| 2026-04-03 12:00 |
05:41:08.99 |
+63:57:02.8 |
HIP 26408 |
28.37 |
| 2026-04-04 00:00 |
05:41:10.66 |
+63:56:38.5 |
HIP 26408 |
28.71 |
| 2026-04-04 12:00 |
05:41:12.37 |
+63:56:14.3 |
HIP 26408 |
29.06 |
| 2026-04-05 00:00 |
05:41:14.13 |
+63:55:50.1 |
HIP 26408 |
29.42 |
| 2026-04-05 12:00 |
05:41:15.93 |
+63:55:26.0 |
HIP 26408 |
29.78 |
| 2026-04-06 00:00 |
05:41:17.78 |
+63:55:02.0 |
HIP 26408 |
30.15 |
| 2026-04-06 12:00 |
05:41:19.67 |
+63:54:38.1 |
HIP 26408 |
30.52 |
| 2026-04-07 00:00 |
05:41:21.60 |
+63:54:14.3 |
HIP 26408 |
30.90 |
| 2026-04-07 12:00 |
05:41:23.58 |
+63:53:50.6 |
HIP 26408 |
31.29 |
| 2026-04-08 00:00 |
05:41:25.60 |
+63:53:26.9 |
HIP 26408 |
31.68 |
| 2026-04-08 12:00 |
05:41:27.67 |
+63:53:03.4 |
HIP 26408 |
32.08 |
| 2026-04-09 00:00 |
05:41:29.77 |
+63:52:39.9 |
HIP 26408 |
32.48 |
| 2026-04-09 12:00 |
05:41:31.92 |
+63:52:16.5 |
HIP 26408 |
32.88 |
| 2026-04-10 00:00 |
05:41:34.11 |
+63:51:53.2 |
HIP 26408 |
33.29 |
| 2026-04-10 12:00 |
05:41:36.35 |
+63:51:30.1 |
HIP 26408 |
33.70 |
| 2026-04-11 00:00 |
05:41:38.62 |
+63:51:07.0 |
HIP 26829 |
33.34 |
| 2026-04-11 12:00 |
05:41:40.94 |
+63:50:44.0 |
HIP 26829 |
32.95 |
| 2026-04-12 00:00 |
05:41:43.30 |
+63:50:21.1 |
HIP 26829 |
32.57 |
| 2026-04-12 12:00 |
05:41:45.70 |
+63:49:58.3 |
HIP 26829 |
32.18 |
| 2026-04-13 00:00 |
05:41:48.14 |
+63:49:35.6 |
HIP 26829 |
31.80 |
| 2026-04-13 12:00 |
05:41:50.63 |
+63:49:13.0 |
HIP 26829 |
31.43 |
| 2026-04-14 00:00 |
05:41:53.15 |
+63:48:50.5 |
HIP 26829 |
31.06 |
| 2026-04-14 12:00 |
05:41:55.71 |
+63:48:28.2 |
HIP 26829 |
30.69 |
| 2026-04-15 00:00 |
05:41:58.32 |
+63:48:05.9 |
HIP 26829 |
30.33 |
| 2026-04-15 12:00 |
05:42:00.96 |
+63:47:43.7 |
HIP 26829 |
29.98 |
| 2026-04-16 00:00 |
05:42:03.65 |
+63:47:21.7 |
HIP 26829 |
29.63 |