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) |
| 2026-03-26 00:00 |
03:33:42.61 |
+62:15:08.2 |
HIP 16573 |
2.82 |
| 2026-03-26 12:00 |
03:33:46.26 |
+62:14:53.1 |
HIP 16573 |
3.10 |
| 2026-03-27 00:00 |
03:33:49.95 |
+62:14:38.2 |
HIP 16573 |
3.44 |
| 2026-03-27 12:00 |
03:33:53.67 |
+62:14:23.5 |
HIP 16573 |
3.82 |
| 2026-03-28 00:00 |
03:33:57.43 |
+62:14:09.1 |
HIP 16573 |
4.22 |
| 2026-03-28 12:00 |
03:34:01.22 |
+62:13:54.8 |
HIP 16573 |
4.65 |
| 2026-03-29 00:00 |
03:34:05.04 |
+62:13:40.7 |
HIP 16573 |
5.10 |
| 2026-03-29 12:00 |
03:34:08.89 |
+62:13:26.8 |
HIP 16573 |
5.56 |
| 2026-03-30 00:00 |
03:34:12.78 |
+62:13:13.1 |
HIP 16573 |
6.03 |
| 2026-03-30 12:00 |
03:34:16.70 |
+62:12:59.6 |
HIP 16573 |
6.51 |
| 2026-03-31 00:00 |
03:34:20.65 |
+62:12:46.3 |
HIP 16573 |
6.99 |
| 2026-03-31 12:00 |
03:34:24.63 |
+62:12:33.2 |
HIP 16573 |
7.48 |
| 2026-04-01 00:00 |
03:34:28.64 |
+62:12:20.3 |
HIP 16573 |
7.98 |
| 2026-04-01 12:00 |
03:34:32.68 |
+62:12:07.6 |
HIP 16573 |
8.49 |
| 2026-04-02 00:00 |
03:34:36.76 |
+62:11:55.1 |
HIP 16573 |
8.99 |
| 2026-04-02 12:00 |
03:34:40.86 |
+62:11:42.8 |
HIP 16573 |
9.51 |
| 2026-04-03 00:00 |
03:34:45.00 |
+62:11:30.7 |
HIP 16573 |
10.02 |
| 2026-04-03 12:00 |
03:34:49.16 |
+62:11:18.8 |
HIP 16573 |
10.54 |
| 2026-04-04 00:00 |
03:34:53.35 |
+62:11:07.1 |
HIP 16573 |
11.06 |
| 2026-04-04 12:00 |
03:34:57.58 |
+62:10:55.6 |
HIP 16573 |
11.59 |
| 2026-04-05 00:00 |
03:35:01.83 |
+62:10:44.3 |
HIP 16573 |
12.11 |
| 2026-04-05 12:00 |
03:35:06.11 |
+62:10:33.2 |
HIP 16573 |
12.64 |
| 2026-04-06 00:00 |
03:35:10.42 |
+62:10:22.4 |
HIP 16573 |
13.18 |
| 2026-04-06 12:00 |
03:35:14.75 |
+62:10:11.7 |
HIP 16573 |
13.71 |
| 2026-04-07 00:00 |
03:35:19.12 |
+62:10:01.2 |
HIP 16573 |
14.25 |
| 2026-04-07 12:00 |
03:35:23.51 |
+62:09:51.0 |
HIP 16573 |
14.79 |
| 2026-04-08 00:00 |
03:35:27.93 |
+62:09:40.9 |
HIP 16573 |
15.33 |
| 2026-04-08 12:00 |
03:35:32.37 |
+62:09:31.1 |
HIP 16573 |
15.87 |
| 2026-04-09 00:00 |
03:35:36.85 |
+62:09:21.5 |
HIP 16573 |
16.42 |
| 2026-04-09 12:00 |
03:35:41.35 |
+62:09:12.1 |
HIP 16573 |
16.97 |
| 2026-04-10 00:00 |
03:35:45.87 |
+62:09:02.9 |
HIP 16573 |
17.52 |
| 2026-04-10 12:00 |
03:35:50.42 |
+62:08:53.9 |
HIP 16573 |
18.07 |
| 2026-04-11 00:00 |
03:35:55.00 |
+62:08:45.1 |
HIP 16573 |
18.63 |
| 2026-04-11 12:00 |
03:35:59.60 |
+62:08:36.5 |
HIP 16573 |
19.18 |
| 2026-04-12 00:00 |
03:36:04.23 |
+62:08:28.2 |
HIP 16573 |
19.74 |
| 2026-04-12 12:00 |
03:36:08.88 |
+62:08:20.0 |
HIP 16573 |
20.30 |
| 2026-04-13 00:00 |
03:36:13.55 |
+62:08:12.1 |
HIP 16573 |
20.86 |
| 2026-04-13 12:00 |
03:36:18.25 |
+62:08:04.4 |
HIP 16573 |
21.42 |
| 2026-04-14 00:00 |
03:36:22.98 |
+62:07:56.9 |
HIP 16573 |
21.99 |
| 2026-04-14 12:00 |
03:36:27.72 |
+62:07:49.6 |
HIP 16573 |
22.56 |
| 2026-04-15 00:00 |
03:36:32.49 |
+62:07:42.5 |
HIP 16573 |
23.13 |
| 2026-04-15 12:00 |
03:36:37.29 |
+62:07:35.6 |
HIP 16573 |
23.70 |
| 2026-04-16 00:00 |
03:36:42.10 |
+62:07:29.0 |
HIP 16573 |
24.27 |