C/2000 CT54 (LINEAR)
メタデータ
| 項目 |
値 |
| Designation |
C/2000 CT54 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2001-06-19T10:43:56.498880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:04Z |
| Obs used |
216 |
| NEO |
- |
| M1 |
7.400 |
| K1 |
10.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2002-05-15.0000000 |
| e |
0.99835347 |
| q (au) |
3.155967 |
| a (au) |
1916.742283 |
| i (deg) |
49.212506 |
| Ω (om, deg) |
18.956792 |
| ω (w, deg) |
272.644443 |
| M (ma, deg) |
0.003871 |
等級
散乱 + 全体線形
$$
M_a = (6.408 + 3.965\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
6.408 |
| n |
3.965 |
| gf |
1.000 |
| gb |
-0.824 |
| k |
0.998 |
| 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) |
| 2026-02-03 00:00 |
03:31:10.93 |
+62:53:44.8 |
HIP 16298 |
15.55 |
| 2026-02-03 12:00 |
03:31:10.02 |
+62:53:17.5 |
HIP 16298 |
15.91 |
| 2026-02-04 00:00 |
03:31:09.15 |
+62:52:50.2 |
HIP 16298 |
16.28 |
| 2026-02-04 12:00 |
03:31:08.34 |
+62:52:23.0 |
HIP 16298 |
16.65 |
| 2026-02-05 00:00 |
03:31:07.58 |
+62:51:55.7 |
HIP 16298 |
17.03 |
| 2026-02-05 12:00 |
03:31:06.86 |
+62:51:28.5 |
HIP 16298 |
17.41 |
| 2026-02-06 00:00 |
03:31:06.20 |
+62:51:01.4 |
HIP 16298 |
17.80 |
| 2026-02-06 12:00 |
03:31:05.58 |
+62:50:34.2 |
HIP 16298 |
18.20 |
| 2026-02-07 00:00 |
03:31:05.02 |
+62:50:07.1 |
HIP 16298 |
18.60 |
| 2026-02-07 12:00 |
03:31:04.51 |
+62:49:40.1 |
HIP 16298 |
19.00 |
| 2026-02-08 00:00 |
03:31:04.04 |
+62:49:13.0 |
HIP 16298 |
19.40 |
| 2026-02-08 12:00 |
03:31:03.63 |
+62:48:46.1 |
HIP 16298 |
19.81 |
| 2026-02-09 00:00 |
03:31:03.27 |
+62:48:19.1 |
HIP 16298 |
20.23 |
| 2026-02-09 12:00 |
03:31:02.95 |
+62:47:52.3 |
HIP 16298 |
20.64 |
| 2026-02-10 00:00 |
03:31:02.69 |
+62:47:25.4 |
HIP 16298 |
21.06 |
| 2026-02-10 12:00 |
03:31:02.48 |
+62:46:58.6 |
HIP 16298 |
21.48 |
| 2026-02-11 00:00 |
03:31:02.32 |
+62:46:31.9 |
HIP 16298 |
21.90 |
| 2026-02-11 12:00 |
03:31:02.20 |
+62:46:05.2 |
HIP 16298 |
22.32 |
| 2026-02-12 00:00 |
03:31:02.14 |
+62:45:38.6 |
HIP 16298 |
22.75 |
| 2026-02-12 12:00 |
03:31:02.13 |
+62:45:12.1 |
HIP 16195 |
22.67 |
| 2026-02-13 00:00 |
03:31:02.16 |
+62:44:45.6 |
HIP 16195 |
22.37 |
| 2026-02-13 12:00 |
03:31:02.25 |
+62:44:19.2 |
HIP 16195 |
22.09 |
| 2026-02-14 00:00 |
03:31:02.39 |
+62:43:52.8 |
HIP 16195 |
21.81 |
| 2026-02-14 12:00 |
03:31:02.58 |
+62:43:26.5 |
HIP 16195 |
21.54 |
| 2026-02-15 00:00 |
03:31:02.81 |
+62:43:00.3 |
HIP 16195 |
21.29 |
| 2026-02-15 12:00 |
03:31:03.10 |
+62:42:34.2 |
HIP 16195 |
21.04 |
| 2026-02-16 00:00 |
03:31:03.43 |
+62:42:08.1 |
HIP 16195 |
20.81 |
| 2026-02-16 12:00 |
03:31:03.82 |
+62:41:42.1 |
HIP 16195 |
20.59 |
| 2026-02-17 00:00 |
03:31:04.26 |
+62:41:16.2 |
HIP 16195 |
20.38 |
| 2026-02-17 12:00 |
03:31:04.74 |
+62:40:50.4 |
HIP 16195 |
20.18 |
| 2026-02-18 00:00 |
03:31:05.27 |
+62:40:24.6 |
HIP 16195 |
20.00 |
| 2026-02-18 12:00 |
03:31:05.86 |
+62:39:59.0 |
HIP 16195 |
19.83 |
| 2026-02-19 00:00 |
03:31:06.49 |
+62:39:33.4 |
HIP 16195 |
19.68 |
| 2026-02-19 12:00 |
03:31:07.17 |
+62:39:07.9 |
HIP 16195 |
19.53 |
| 2026-02-20 00:00 |
03:31:07.90 |
+62:38:42.6 |
HIP 16195 |
19.41 |
| 2026-02-20 12:00 |
03:31:08.68 |
+62:38:17.3 |
HIP 16565 |
19.10 |
| 2026-02-21 00:00 |
03:31:09.50 |
+62:37:52.1 |
HIP 16565 |
18.75 |
| 2026-02-21 12:00 |
03:31:10.38 |
+62:37:27.0 |
HIP 16565 |
18.41 |
| 2026-02-22 00:00 |
03:31:11.30 |
+62:37:02.0 |
HIP 16565 |
18.07 |
| 2026-02-22 12:00 |
03:31:12.28 |
+62:36:37.1 |
HIP 16565 |
17.72 |
| 2026-02-23 00:00 |
03:31:13.30 |
+62:36:12.4 |
HIP 16565 |
17.38 |
| 2026-02-23 12:00 |
03:31:14.36 |
+62:35:47.7 |
HIP 16565 |
17.04 |
| 2026-02-24 00:00 |
03:31:15.48 |
+62:35:23.1 |
HIP 16565 |
16.70 |