1. The spacecraft reached its pericynthion and began to gather data from the close proximity of the planet.
（该航天器到达了它的近地点，并开始从该行星的近距离处收集数据。）

2. The pericynthion of the moon's orbit around the Earth is about 363,300 kilometers.
（月球绕地球的近地点大约是363,300公里。）