perigee

If this is an ellipse around the Earth, then this would be perigee and this would be apogee..如果这是一个围绕,地球的椭圆形轨道,那么这是近地点，这是远地点。

We know the period, we know where apogee is, we know where perigee is, - we know the orbital period-- anything we want to know..知道周期，知道远地点，和近地点在哪里，知道轨道周期-,知道了想知道的一切。

The lowest point (perigee) of the ISS was 347 kilometers and the highest point (apogee) of the SH-7 orbit was 336 kilometers..国际空间站的最低点(近地点)是347公里，神舟七号的最高点(远地点)为336公里。