メタデータ
| 項目 |
値 |
| Designation |
C/2006 O2 (Garradd) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2006-10-05T09:45:32.495040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:58Z |
| Obs used |
84 |
| NEO |
- |
| M1 |
15.200 |
| K1 |
5.750 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2006-09-06.0000000 |
| e |
0.99635182 |
| q (au) |
1.554794 |
| a (au) |
426.184127 |
| i (deg) |
43.028733 |
| Ω (om, deg) |
283.358310 |
| ω (w, deg) |
19.984383 |
| M (ma, deg) |
359.996706 |
等級
散乱 + 全体線形
$$
M_a = (15.817 + 3.338\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
15.817 |
| n |
3.338 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.800 |
| 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) |
| 2026-06-01 00:00 |
06:47:35.65 |
+24:40:04.9 |
HIP 32527 |
11.12 |
| 2026-06-01 12:00 |
06:47:38.50 |
+24:39:59.7 |
HIP 32527 |
11.48 |
| 2026-06-02 00:00 |
06:47:41.36 |
+24:39:54.4 |
HIP 32527 |
11.87 |
| 2026-06-02 12:00 |
06:47:44.24 |
+24:39:49.2 |
HIP 32527 |
12.28 |
| 2026-06-03 00:00 |
06:47:47.13 |
+24:39:43.9 |
HIP 32527 |
12.72 |
| 2026-06-03 12:00 |
06:47:50.03 |
+24:39:38.7 |
HIP 32527 |
13.17 |
| 2026-06-04 00:00 |
06:47:52.95 |
+24:39:33.4 |
HIP 32527 |
13.65 |
| 2026-06-04 12:00 |
06:47:55.87 |
+24:39:28.2 |
HIP 32527 |
14.14 |
| 2026-06-05 00:00 |
06:47:58.81 |
+24:39:22.9 |
HIP 32527 |
14.65 |
| 2026-06-05 12:00 |
06:48:01.76 |
+24:39:17.6 |
HIP 32527 |
15.17 |
| 2026-06-06 00:00 |
06:48:04.72 |
+24:39:12.3 |
HIP 32527 |
15.71 |
| 2026-06-06 12:00 |
06:48:07.69 |
+24:39:07.0 |
HIP 32527 |
16.26 |
| 2026-06-07 00:00 |
06:48:10.67 |
+24:39:01.7 |
HIP 32527 |
16.82 |
| 2026-06-07 12:00 |
06:48:13.66 |
+24:38:56.4 |
HIP 32527 |
17.39 |
| 2026-06-08 00:00 |
06:48:16.67 |
+24:38:51.1 |
HIP 32527 |
17.97 |
| 2026-06-08 12:00 |
06:48:19.68 |
+24:38:45.8 |
HIP 32527 |
18.56 |
| 2026-06-09 00:00 |
06:48:22.70 |
+24:38:40.5 |
HIP 32527 |
19.16 |
| 2026-06-09 12:00 |
06:48:25.74 |
+24:38:35.1 |
HIP 32527 |
19.77 |
| 2026-06-10 00:00 |
06:48:28.78 |
+24:38:29.8 |
HIP 32527 |
20.38 |
| 2026-06-10 12:00 |
06:48:31.83 |
+24:38:24.5 |
HIP 32527 |
21.00 |
| 2026-06-11 00:00 |
06:48:34.90 |
+24:38:19.1 |
HIP 32527 |
21.63 |
| 2026-06-11 12:00 |
06:48:37.97 |
+24:38:13.8 |
HIP 32527 |
22.27 |
| 2026-06-12 00:00 |
06:48:41.05 |
+24:38:08.4 |
HIP 32527 |
22.91 |
| 2026-06-12 12:00 |
06:48:44.14 |
+24:38:03.1 |
HIP 32527 |
23.55 |
| 2026-06-13 00:00 |
06:48:47.24 |
+24:37:57.7 |
HIP 32527 |
24.20 |
| 2026-06-13 12:00 |
06:48:50.34 |
+24:37:52.4 |
HIP 32527 |
24.86 |
| 2026-06-14 00:00 |
06:48:53.46 |
+24:37:47.0 |
HIP 32527 |
25.52 |
| 2026-06-14 12:00 |
06:48:56.58 |
+24:37:41.7 |
HIP 32527 |
26.18 |
| 2026-06-15 00:00 |
06:48:59.71 |
+24:37:36.3 |
HIP 32527 |
26.85 |
| 2026-06-15 12:00 |
06:49:02.85 |
+24:37:30.9 |
HIP 32527 |
27.52 |
| 2026-06-16 00:00 |
06:49:05.99 |
+24:37:25.6 |
HIP 32527 |
28.20 |
| 2026-06-16 12:00 |
06:49:09.14 |
+24:37:20.2 |
HIP 32527 |
28.88 |
| 2026-06-17 00:00 |
06:49:12.30 |
+24:37:14.8 |
HIP 32527 |
29.56 |
| 2026-06-17 12:00 |
06:49:15.47 |
+24:37:09.4 |
HIP 32527 |
30.25 |
| 2026-06-18 00:00 |
06:49:18.64 |
+24:37:04.1 |
HIP 32800 |
30.57 |
| 2026-06-18 12:00 |
06:49:21.82 |
+24:36:58.7 |
HIP 32800 |
30.19 |
| 2026-06-19 00:00 |
06:49:25.00 |
+24:36:53.3 |
HIP 32800 |
29.82 |
| 2026-06-19 12:00 |
06:49:28.19 |
+24:36:47.9 |
HIP 32800 |
29.46 |
| 2026-06-20 00:00 |
06:49:31.39 |
+24:36:42.6 |
HIP 32800 |
29.12 |
| 2026-06-20 12:00 |
06:49:34.59 |
+24:36:37.2 |
HIP 32800 |
28.78 |
| 2026-06-21 00:00 |
06:49:37.79 |
+24:36:31.8 |
HIP 32800 |
28.47 |
| 2026-06-21 12:00 |
06:49:41.00 |
+24:36:26.4 |
HIP 32800 |
28.17 |
| 2026-06-22 00:00 |
06:49:44.22 |
+24:36:21.0 |
HIP 32800 |
27.88 |