C/2011 O1 (LINEAR)
メタデータ
| 項目 |
値 |
| Designation |
C/2011 O1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2012-08-18T11:17:58.580160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:53Z |
| Obs used |
281 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
9.500 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2012-08-30.0000000 |
| e |
0.99678430 |
| q (au) |
3.890653 |
| a (au) |
1209.894503 |
| i (deg) |
76.498886 |
| Ω (om, deg) |
89.816812 |
| ω (w, deg) |
232.382598 |
| M (ma, deg) |
0.000270 |
等級
散乱 + 全体線形
$$
M_a = (8.327 + 2.712\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
8.327 |
| n |
2.712 |
| gf |
0.991 |
| gb |
-0.595 |
| 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) |
| 2026-02-03 00:00 |
06:02:38.48 |
+32:36:49.5 |
HIP 28626 |
1.35 |
| 2026-02-03 12:00 |
06:02:34.86 |
+32:36:48.7 |
HIP 28626 |
1.45 |
| 2026-02-04 00:00 |
06:02:31.27 |
+32:36:47.8 |
HIP 28626 |
1.87 |
| 2026-02-04 12:00 |
06:02:27.71 |
+32:36:46.9 |
HIP 28626 |
2.46 |
| 2026-02-05 00:00 |
06:02:24.18 |
+32:36:45.9 |
HIP 28626 |
3.11 |
| 2026-02-05 12:00 |
06:02:20.69 |
+32:36:44.8 |
HIP 28626 |
3.78 |
| 2026-02-06 00:00 |
06:02:17.23 |
+32:36:43.7 |
HIP 28626 |
4.47 |
| 2026-02-06 12:00 |
06:02:13.81 |
+32:36:42.5 |
HIP 28626 |
5.16 |
| 2026-02-07 00:00 |
06:02:10.42 |
+32:36:41.2 |
HIP 28626 |
5.85 |
| 2026-02-07 12:00 |
06:02:07.07 |
+32:36:39.8 |
HIP 28626 |
6.54 |
| 2026-02-08 00:00 |
06:02:03.75 |
+32:36:38.4 |
HIP 28626 |
7.23 |
| 2026-02-08 12:00 |
06:02:00.47 |
+32:36:36.9 |
HIP 28626 |
7.91 |
| 2026-02-09 00:00 |
06:01:57.22 |
+32:36:35.4 |
HIP 28626 |
8.58 |
| 2026-02-09 12:00 |
06:01:54.01 |
+32:36:33.8 |
HIP 28626 |
9.25 |
| 2026-02-10 00:00 |
06:01:50.83 |
+32:36:32.1 |
HIP 28626 |
9.91 |
| 2026-02-10 12:00 |
06:01:47.69 |
+32:36:30.3 |
HIP 28626 |
10.56 |
| 2026-02-11 00:00 |
06:01:44.59 |
+32:36:28.5 |
HIP 28626 |
11.21 |
| 2026-02-11 12:00 |
06:01:41.53 |
+32:36:26.7 |
HIP 28626 |
11.85 |
| 2026-02-12 00:00 |
06:01:38.50 |
+32:36:24.7 |
HIP 28626 |
12.49 |
| 2026-02-12 12:00 |
06:01:35.51 |
+32:36:22.8 |
HIP 28626 |
13.11 |
| 2026-02-13 00:00 |
06:01:32.55 |
+32:36:20.7 |
HIP 28626 |
13.73 |
| 2026-02-13 12:00 |
06:01:29.64 |
+32:36:18.6 |
HIP 28626 |
14.34 |
| 2026-02-14 00:00 |
06:01:26.76 |
+32:36:16.5 |
HIP 28626 |
14.94 |
| 2026-02-14 12:00 |
06:01:23.92 |
+32:36:14.2 |
HIP 28626 |
15.54 |
| 2026-02-15 00:00 |
06:01:21.12 |
+32:36:12.0 |
HIP 28626 |
16.13 |
| 2026-02-15 12:00 |
06:01:18.36 |
+32:36:09.7 |
HIP 28626 |
16.71 |
| 2026-02-16 00:00 |
06:01:15.64 |
+32:36:07.3 |
HIP 28626 |
17.28 |
| 2026-02-16 12:00 |
06:01:12.95 |
+32:36:04.9 |
HIP 28626 |
17.84 |
| 2026-02-17 00:00 |
06:01:10.31 |
+32:36:02.4 |
HIP 28626 |
18.40 |
| 2026-02-17 12:00 |
06:01:07.70 |
+32:35:59.8 |
HIP 28626 |
18.94 |
| 2026-02-18 00:00 |
06:01:05.14 |
+32:35:57.3 |
HIP 28626 |
19.48 |
| 2026-02-18 12:00 |
06:01:02.61 |
+32:35:54.6 |
HIP 28626 |
20.01 |
| 2026-02-19 00:00 |
06:01:00.13 |
+32:35:52.0 |
HIP 28626 |
20.54 |
| 2026-02-19 12:00 |
06:00:57.68 |
+32:35:49.2 |
HIP 28626 |
21.05 |
| 2026-02-20 00:00 |
06:00:55.28 |
+32:35:46.5 |
HIP 28626 |
21.56 |
| 2026-02-20 12:00 |
06:00:52.92 |
+32:35:43.7 |
HIP 28626 |
22.05 |
| 2026-02-21 00:00 |
06:00:50.59 |
+32:35:40.8 |
HIP 28502 |
22.27 |
| 2026-02-21 12:00 |
06:00:48.31 |
+32:35:37.9 |
HIP 28502 |
22.27 |
| 2026-02-22 00:00 |
06:00:46.07 |
+32:35:34.9 |
HIP 28502 |
22.29 |
| 2026-02-22 12:00 |
06:00:43.87 |
+32:35:32.0 |
HIP 28502 |
22.31 |
| 2026-02-23 00:00 |
06:00:41.71 |
+32:35:28.9 |
HIP 28502 |
22.34 |
| 2026-02-23 12:00 |
06:00:39.59 |
+32:35:25.9 |
HIP 28502 |
22.38 |
| 2026-02-24 00:00 |
06:00:37.52 |
+32:35:22.8 |
HIP 28502 |
22.42 |