53颗Starlink卫星从加州起飞 发射总数超过2500枚

本周五，SpaceX 的一枚火箭运载着 53 颗 Starlink 卫星从加州起飞，使发射总数超过 2500 枚。“猎鹰 9 号”助推器于北京时间今天（5 月 14 日）凌晨 6 点 07 分从范登堡空军基地升空，几分钟后，第一级降落在太平洋的一艘无人船上，第二级继续向低地球轨道飞行。

卫星部署计划在大约一小时后进行。周五的发射是在西海岸发射场的太空发射场 4E（SLC-4E）进行的，并进入了星联卫星群的第四层53.2度的轨道。

按照目前的设计，第一代Starlink星座将由4,408颗卫星组成。在周五的发射之前，已经发射了 2,494 颗卫星；然而，这个数字包括 240 多颗已经退役、部署后失败或在轨测试期间被拒绝。另外 53 颗卫星的加入使发射总数达到 2547 颗。

Starlink是SpaceX公司多年来一直在建设的一个基于空间的系统，为世界上服务不足的地区提供互联网接入。总部位于加利福尼亚州霍桑的SpaceX公司有数百颗Starlink卫星，在340英里（550公里）的高度上环绕地球。

Satellite deployment is planned in about an hour. Friday’s launch took place at the space launch site 4e (SLC-4E) at the West Coast launch site and entered the 53.2-degree orbit of the fourth layer of the satellite cluster.

According to the current design, the first generation of Starlink constellation will consist of 4408 satellites. Before Friday’s launch, 2494 satellites had been launched; however, that number included more than 240 that had been decommissioned, failed after deployment or rejected during in-orbit testing. The addition of another 53 satellites brings the total number of launches to 2547.

Starlink is a space-based system that SpaceX has been building for many years to provide Internet access to underserved parts of the world. SpaceX, headquartered in Hawthorne, Calif., has hundreds of Starlink satellites orbiting the earth at an altitude of 340 miles (550km).