メタデータ
| 項目 |
値 |
| Designation |
C/2000 K1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1999-12-14T12:17:47.273280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:04Z |
| Obs used |
304 |
| NEO |
- |
| M1 |
6.200 |
| K1 |
8.250 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2000-09-03.0000000 |
| e |
1.00229832 |
| q (au) |
6.275829 |
| a (au) |
-2730.610936 |
| i (deg) |
116.789203 |
| Ω (om, deg) |
260.198200 |
| ω (w, deg) |
15.791006 |
| M (ma, deg) |
0.001820 |
等級
散乱 + 全体線形
$$
M_a = (0.447 + 5.589\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
0.447 |
| n |
5.589 |
| 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) |
| 2026-09-20 00:00 |
06:27:48.40 |
+48:09:44.0 |
HIP 30768 |
10.52 |
| 2026-09-20 12:00 |
06:27:48.79 |
+48:09:57.5 |
HIP 30768 |
10.74 |
| 2026-09-21 00:00 |
06:27:49.15 |
+48:10:11.1 |
HIP 30768 |
10.95 |
| 2026-09-21 12:00 |
06:27:49.48 |
+48:10:24.7 |
HIP 30768 |
11.17 |
| 2026-09-22 00:00 |
06:27:49.77 |
+48:10:38.3 |
HIP 30768 |
11.40 |
| 2026-09-22 12:00 |
06:27:50.03 |
+48:10:51.9 |
HIP 30768 |
11.62 |
| 2026-09-23 00:00 |
06:27:50.26 |
+48:11:05.6 |
HIP 30768 |
11.84 |
| 2026-09-23 12:00 |
06:27:50.46 |
+48:11:19.4 |
HIP 30768 |
12.07 |
| 2026-09-24 00:00 |
06:27:50.62 |
+48:11:33.1 |
HIP 30768 |
12.30 |
| 2026-09-24 12:00 |
06:27:50.74 |
+48:11:46.9 |
HIP 30768 |
12.52 |
| 2026-09-25 00:00 |
06:27:50.84 |
+48:12:00.7 |
HIP 30768 |
12.75 |
| 2026-09-25 12:00 |
06:27:50.90 |
+48:12:14.6 |
HIP 30768 |
12.98 |
| 2026-09-26 00:00 |
06:27:50.93 |
+48:12:28.5 |
HIP 30768 |
13.21 |
| 2026-09-26 12:00 |
06:27:50.92 |
+48:12:42.4 |
HIP 30768 |
13.45 |
| 2026-09-27 00:00 |
06:27:50.88 |
+48:12:56.3 |
HIP 30768 |
13.68 |
| 2026-09-27 12:00 |
06:27:50.81 |
+48:13:10.3 |
HIP 30768 |
13.91 |
| 2026-09-28 00:00 |
06:27:50.70 |
+48:13:24.3 |
HIP 30768 |
14.14 |
| 2026-09-28 12:00 |
06:27:50.56 |
+48:13:38.3 |
HIP 30768 |
14.38 |
| 2026-09-29 00:00 |
06:27:50.38 |
+48:13:52.3 |
HIP 30768 |
14.61 |
| 2026-09-29 12:00 |
06:27:50.18 |
+48:14:06.4 |
HIP 30768 |
14.85 |
| 2026-09-30 00:00 |
06:27:49.93 |
+48:14:20.5 |
HIP 30768 |
15.09 |
| 2026-09-30 12:00 |
06:27:49.66 |
+48:14:34.6 |
HIP 30768 |
15.32 |
| 2026-10-01 00:00 |
06:27:49.35 |
+48:14:48.7 |
HIP 30768 |
15.56 |
| 2026-10-01 12:00 |
06:27:49.00 |
+48:15:02.8 |
HIP 30768 |
15.80 |
| 2026-10-02 00:00 |
06:27:48.63 |
+48:15:16.9 |
HIP 30768 |
16.04 |
| 2026-10-02 12:00 |
06:27:48.22 |
+48:15:31.1 |
HIP 30768 |
16.28 |
| 2026-10-03 00:00 |
06:27:47.77 |
+48:15:45.3 |
HIP 30768 |
16.52 |
| 2026-10-03 12:00 |
06:27:47.29 |
+48:15:59.4 |
HIP 30768 |
16.77 |
| 2026-10-04 00:00 |
06:27:46.78 |
+48:16:13.6 |
HIP 30768 |
17.01 |
| 2026-10-04 12:00 |
06:27:46.23 |
+48:16:27.8 |
HIP 30768 |
17.25 |
| 2026-10-05 00:00 |
06:27:45.64 |
+48:16:42.0 |
HIP 30768 |
17.50 |
| 2026-10-05 12:00 |
06:27:45.03 |
+48:16:56.3 |
HIP 30768 |
17.74 |
| 2026-10-06 00:00 |
06:27:44.38 |
+48:17:10.5 |
HIP 30768 |
17.99 |
| 2026-10-06 12:00 |
06:27:43.69 |
+48:17:24.7 |
HIP 30768 |
18.24 |
| 2026-10-07 00:00 |
06:27:42.97 |
+48:17:38.9 |
HIP 30768 |
18.49 |
| 2026-10-07 12:00 |
06:27:42.22 |
+48:17:53.2 |
HIP 30768 |
18.74 |
| 2026-10-08 00:00 |
06:27:41.43 |
+48:18:07.4 |
HIP 30768 |
18.99 |
| 2026-10-08 12:00 |
06:27:40.61 |
+48:18:21.6 |
HIP 30768 |
19.24 |
| 2026-10-09 00:00 |
06:27:39.75 |
+48:18:35.8 |
HIP 30768 |
19.50 |
| 2026-10-09 12:00 |
06:27:38.86 |
+48:18:50.1 |
HIP 30768 |
19.75 |
| 2026-10-10 00:00 |
06:27:37.93 |
+48:19:04.3 |
HIP 30768 |
20.01 |
| 2026-10-10 12:00 |
06:27:36.97 |
+48:19:18.5 |
HIP 30768 |
20.27 |
| 2026-10-11 00:00 |
06:27:35.98 |
+48:19:32.7 |
HIP 30768 |
20.53 |