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) |
| 2026-03-26 00:00 |
05:59:50.78 |
+32:31:37.6 |
HIP 28361 |
21.95 |
| 2026-03-26 12:00 |
05:59:51.31 |
+32:31:33.8 |
HIP 28361 |
22.03 |
| 2026-03-27 00:00 |
05:59:51.88 |
+32:31:29.9 |
HIP 28361 |
22.12 |
| 2026-03-27 12:00 |
05:59:52.49 |
+32:31:26.0 |
HIP 28361 |
22.21 |
| 2026-03-28 00:00 |
05:59:53.14 |
+32:31:22.2 |
HIP 28361 |
22.30 |
| 2026-03-28 12:00 |
05:59:53.83 |
+32:31:18.3 |
HIP 28361 |
22.39 |
| 2026-03-29 00:00 |
05:59:54.57 |
+32:31:14.5 |
HIP 28361 |
22.48 |
| 2026-03-29 12:00 |
05:59:55.34 |
+32:31:10.7 |
HIP 28502 |
22.49 |
| 2026-03-30 00:00 |
05:59:56.16 |
+32:31:06.9 |
HIP 28502 |
22.33 |
| 2026-03-30 12:00 |
05:59:57.01 |
+32:31:03.1 |
HIP 28502 |
22.17 |
| 2026-03-31 00:00 |
05:59:57.91 |
+32:30:59.3 |
HIP 28502 |
22.01 |
| 2026-03-31 12:00 |
05:59:58.85 |
+32:30:55.6 |
HIP 28502 |
21.84 |
| 2026-04-01 00:00 |
05:59:59.83 |
+32:30:51.9 |
HIP 28502 |
21.66 |
| 2026-04-01 12:00 |
06:00:00.85 |
+32:30:48.2 |
HIP 28502 |
21.48 |
| 2026-04-02 00:00 |
06:00:01.90 |
+32:30:44.5 |
HIP 28502 |
21.30 |
| 2026-04-02 12:00 |
06:00:03.00 |
+32:30:40.8 |
HIP 28502 |
21.12 |
| 2026-04-03 00:00 |
06:00:04.14 |
+32:30:37.1 |
HIP 28502 |
20.93 |
| 2026-04-03 12:00 |
06:00:05.32 |
+32:30:33.5 |
HIP 28502 |
20.73 |
| 2026-04-04 00:00 |
06:00:06.54 |
+32:30:29.9 |
HIP 28502 |
20.54 |
| 2026-04-04 12:00 |
06:00:07.80 |
+32:30:26.3 |
HIP 28502 |
20.34 |
| 2026-04-05 00:00 |
06:00:09.10 |
+32:30:22.7 |
HIP 28502 |
20.14 |
| 2026-04-05 12:00 |
06:00:10.43 |
+32:30:19.2 |
HIP 28502 |
19.94 |
| 2026-04-06 00:00 |
06:00:11.81 |
+32:30:15.7 |
HIP 28502 |
19.73 |
| 2026-04-06 12:00 |
06:00:13.22 |
+32:30:12.2 |
HIP 28502 |
19.53 |
| 2026-04-07 00:00 |
06:00:14.68 |
+32:30:08.7 |
HIP 28502 |
19.32 |
| 2026-04-07 12:00 |
06:00:16.17 |
+32:30:05.3 |
HIP 28502 |
19.11 |
| 2026-04-08 00:00 |
06:00:17.70 |
+32:30:01.8 |
HIP 28502 |
18.90 |
| 2026-04-08 12:00 |
06:00:19.27 |
+32:29:58.4 |
HIP 28502 |
18.69 |
| 2026-04-09 00:00 |
06:00:20.88 |
+32:29:55.1 |
HIP 28502 |
18.48 |
| 2026-04-09 12:00 |
06:00:22.53 |
+32:29:51.7 |
HIP 28502 |
18.27 |
| 2026-04-10 00:00 |
06:00:24.21 |
+32:29:48.4 |
HIP 28502 |
18.07 |
| 2026-04-10 12:00 |
06:00:25.94 |
+32:29:45.1 |
HIP 28502 |
17.86 |
| 2026-04-11 00:00 |
06:00:27.70 |
+32:29:41.9 |
HIP 28502 |
17.66 |
| 2026-04-11 12:00 |
06:00:29.50 |
+32:29:38.6 |
HIP 28502 |
17.46 |
| 2026-04-12 00:00 |
06:00:31.33 |
+32:29:35.5 |
HIP 28502 |
17.27 |
| 2026-04-12 12:00 |
06:00:33.21 |
+32:29:32.3 |
HIP 28502 |
17.08 |
| 2026-04-13 00:00 |
06:00:35.12 |
+32:29:29.1 |
HIP 28502 |
16.89 |
| 2026-04-13 12:00 |
06:00:37.06 |
+32:29:26.0 |
HIP 28502 |
16.71 |
| 2026-04-14 00:00 |
06:00:39.05 |
+32:29:23.0 |
HIP 28502 |
16.54 |
| 2026-04-14 12:00 |
06:00:41.07 |
+32:29:19.9 |
HIP 28502 |
16.37 |
| 2026-04-15 00:00 |
06:00:43.13 |
+32:29:16.9 |
HIP 28502 |
16.22 |
| 2026-04-15 12:00 |
06:00:45.22 |
+32:29:13.9 |
HIP 28502 |
16.07 |
| 2026-04-16 00:00 |
06:00:47.35 |
+32:29:11.0 |
HIP 28502 |
15.93 |