satellite zenith angle

例句：

1. 1. The satellite was launched into orbit at an altitude of 360 degrees.
   这颗卫星以360度的高度进入轨道。
2. 2. The astronauts used a telescope to measure the satellite's zenith angle.
   宇航员们使用望远镜来测量卫星的仰角。
3. 3. The satellite's zenith angle is crucial for determining its position in space.
   卫星的仰角对于确定其在太空中的位置至关重要。