Cardea
164207 Cardea (provisional designation 2004 GU9) is a sub-kilometer asteroid, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group. It is a quasi-satellite of Earth, a situation that should persist until around 2600, when it is expected to shift to a regular horseshoe orbit for a few thousand years.
Apollo
観測回数: 367
164207 Cardea (provisional designation 2004 GU9) is a sub-kilometer asteroid, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group. It is a quasi-satellite of Earth, a situation that should persist until around 2600, when it is expected to shift to a regular horseshoe orbit for a few thousand years.
軌道パラメータ
半長軸
1.001 AU
離心率
0.136
近日点
0.865 AU
遠日点
1.137136 AU
軌道傾斜角
13.65°
公転周期
— yr
暦元
2461200.5
平均近点角
294.17°
Orbit diagram
The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.
物理パラメータ
直径
0.163 km
アルベド
0.219
密度
— g/cm³
自転周期
— h
絶対等級
21.19
軌道品質
RMS
0.54103
状態コード
0
軌道ID
—