メタデータ
| 項目 |
値 |
| Designation |
C/2001 U6 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-08-08T15:49:53.086080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:11Z |
| Obs used |
110 |
| NEO |
- |
| M1 |
6.800 |
| K1 |
12.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2002-03-25.0000000 |
| e |
0.99616717 |
| q (au) |
4.406416 |
| a (au) |
1149.649515 |
| i (deg) |
107.255502 |
| Ω (om, deg) |
115.230514 |
| ω (w, deg) |
85.715141 |
| M (ma, deg) |
359.996545 |
等級
散乱 + 全体線形
$$
M_a = (4.267 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
4.267 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.994 |
| 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) |
| 2026-05-12 00:00 |
19:05:07.59 |
-69:14:14.2 |
HIP 94121 |
23.69 |
| 2026-05-12 12:00 |
19:05:02.86 |
-69:14:43.8 |
HIP 94121 |
24.14 |
| 2026-05-13 00:00 |
19:04:58.07 |
-69:15:13.2 |
HIP 94121 |
24.61 |
| 2026-05-13 12:00 |
19:04:53.23 |
-69:15:42.5 |
HIP 94121 |
25.08 |
| 2026-05-14 00:00 |
19:04:48.32 |
-69:16:11.7 |
HIP 94121 |
25.57 |
| 2026-05-14 12:00 |
19:04:43.36 |
-69:16:40.7 |
HIP 94121 |
26.07 |
| 2026-05-15 00:00 |
19:04:38.35 |
-69:17:09.6 |
HIP 94121 |
26.58 |
| 2026-05-15 12:00 |
19:04:33.27 |
-69:17:38.3 |
HIP 94121 |
27.10 |
| 2026-05-16 00:00 |
19:04:28.14 |
-69:18:06.9 |
HIP 94121 |
27.64 |
| 2026-05-16 12:00 |
19:04:22.95 |
-69:18:35.3 |
HIP 94121 |
28.18 |
| 2026-05-17 00:00 |
19:04:17.71 |
-69:19:03.6 |
HIP 94121 |
28.73 |
| 2026-05-17 12:00 |
19:04:12.41 |
-69:19:31.7 |
HIP 94121 |
29.28 |
| 2026-05-18 00:00 |
19:04:07.06 |
-69:19:59.7 |
HIP 94121 |
29.85 |
| 2026-05-18 12:00 |
19:04:01.65 |
-69:20:27.4 |
HIP 94121 |
30.42 |
| 2026-05-19 00:00 |
19:03:56.19 |
-69:20:55.1 |
HIP 94121 |
31.00 |
| 2026-05-19 12:00 |
19:03:50.67 |
-69:21:22.5 |
HIP 93810 |
31.21 |
| 2026-05-20 00:00 |
19:03:45.10 |
-69:21:49.8 |
HIP 93810 |
31.01 |
| 2026-05-20 12:00 |
19:03:39.48 |
-69:22:16.9 |
HIP 93810 |
30.81 |
| 2026-05-21 00:00 |
19:03:33.81 |
-69:22:43.9 |
HIP 93810 |
30.64 |
| 2026-05-21 12:00 |
19:03:28.08 |
-69:23:10.6 |
HIP 93810 |
30.49 |
| 2026-05-22 00:00 |
19:03:22.30 |
-69:23:37.2 |
HIP 93810 |
30.35 |
| 2026-05-22 12:00 |
19:03:16.48 |
-69:24:03.6 |
HIP 93810 |
30.23 |
| 2026-05-23 00:00 |
19:03:10.60 |
-69:24:29.9 |
HIP 93810 |
30.14 |
| 2026-05-23 12:00 |
19:03:04.67 |
-69:24:55.9 |
HIP 93810 |
30.06 |
| 2026-05-24 00:00 |
19:02:58.69 |
-69:25:21.8 |
HIP 93810 |
30.00 |
| 2026-05-24 12:00 |
19:02:52.66 |
-69:25:47.4 |
HIP 93810 |
29.96 |
| 2026-05-25 00:00 |
19:02:46.58 |
-69:26:12.9 |
HIP 93810 |
29.94 |
| 2026-05-25 12:00 |
19:02:40.46 |
-69:26:38.2 |
HIP 93810 |
29.94 |
| 2026-05-26 00:00 |
19:02:34.29 |
-69:27:03.3 |
HIP 93810 |
29.97 |
| 2026-05-26 12:00 |
19:02:28.07 |
-69:27:28.2 |
HIP 93810 |
30.01 |
| 2026-05-27 00:00 |
19:02:21.80 |
-69:27:52.9 |
HIP 93810 |
30.07 |
| 2026-05-27 12:00 |
19:02:15.49 |
-69:28:17.4 |
HIP 93810 |
30.15 |
| 2026-05-28 00:00 |
19:02:09.13 |
-69:28:41.8 |
HIP 93281 |
30.06 |
| 2026-05-28 12:00 |
19:02:02.72 |
-69:29:05.9 |
HIP 93281 |
29.49 |
| 2026-05-29 00:00 |
19:01:56.27 |
-69:29:29.8 |
HIP 93281 |
28.92 |
| 2026-05-29 12:00 |
19:01:49.78 |
-69:29:53.5 |
HIP 93281 |
28.35 |
| 2026-05-30 00:00 |
19:01:43.24 |
-69:30:17.0 |
HIP 93281 |
27.80 |
| 2026-05-30 12:00 |
19:01:36.66 |
-69:30:40.2 |
HIP 93281 |
27.25 |
| 2026-05-31 00:00 |
19:01:30.03 |
-69:31:03.3 |
HIP 93281 |
26.71 |
| 2026-05-31 12:00 |
19:01:23.37 |
-69:31:26.2 |
HIP 93281 |
26.18 |
| 2026-06-01 00:00 |
19:01:16.66 |
-69:31:48.8 |
HIP 93281 |
25.67 |
| 2026-06-01 12:00 |
19:01:09.90 |
-69:32:11.3 |
HIP 93281 |
25.16 |
| 2026-06-02 00:00 |
19:01:03.11 |
-69:32:33.5 |
HIP 93281 |
24.66 |