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SpaceX发射实验性遮阳板以降低反射率

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2020年06月04日

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SpaceX launches experimental sun visor to reduce the reflectivity

SpaceX发射实验性遮阳板以降低反射率

SpaceX has swiftly followed last week’s historic launch of the Crew Dragon with another momentous liftoff, this time firing a further 60 high-speed internet satellites into orbit as part of its Starlink project.

在上周历史性地发射了“乘龙”号之后,SpaceX迅速又进行了一次重大发射,这次将60颗高速互联网卫星送入轨道,这是其Starlink项目的一部分。

Among those was a prototype fitted out with an experimental sun visor designed to reduce the reflectivity, which shapes as a potential solution to a problem that has plagued astronomers banking on clear views of the night sky.

其中一个原型机配备了一个实验性的遮阳板,旨在降低反射率,这可能解决了一个困扰天文学家的问题,即对夜空有更清晰的观测。

SpaceX发射实验性遮阳板以降低反射率

Through its Starlink program, SpaceX hopes to blanket the entire globe in high-speed internet and connect the billions of people that currently go without. All going to plan, the mega-constellation will include some 42,000 satellites, with today’s launch of 60 the eighth of the program, bringing the total currently in orbit to 482.

SpaceX希望通过它的Starlink计划,在高速互联网上覆盖全球,将数十亿没有互联网的人连接起来。按照计划,这个巨型星座将包括约4.2万颗卫星,今天发射的60颗是该计划的第8次发射,使目前在轨的卫星总数达到482颗。

These satellites began to cause some controversy last year, with astronomers finding their observations were being compromised by the bright streaks of light. SpaceX has also experimented with darkening treatments to make them less visible, and now it is testing out a more sophisticated approach which it revealed in detail last month.

这些卫星从去年开始引起了一些争议,天文学家发现他们的观测被明亮的光带破坏了。SpaceX还试验了变暗处理,以使它们不那么显眼,现在它正在测试一种更复杂的方法,该公司上月公布了该方法的细节。

One of the 60 Starlink satellites that launched as part of today’s mission was equipped with a deployable sun visor, designed to block sunlight from hitting most of the spacecraft’s body. The visor packs flat against the satellite chassis for launch and then is deployed once it separates from the rocket, combining with controlled maneuvers to reduce its overall reflectivity.

作为今天任务的一部分发射的60颗星链卫星中,有一颗装备了可展开的遮阳板,旨在阻止阳光照射到航天器的大部分部位。遮阳板在发射时被平装在卫星底盘上,一旦从火箭上分离就会被展开,结合控制动作来降低其整体反射率。

SpaceX发射实验性遮阳板以降低反射率

Today’s launch from Cape Canaveral went off without a hitch, with the prototype VisorSat joining the other Starlink satellites in orbit. Soon after, the first stage of the Falcon 9 booster came down to land on SpaceX’s droneship stationed in the ocean. This marked the fifth time that same Falcon 9 had launched and landed, the first orbital class rocket booster to do so.

今天从卡纳维拉尔角发射成功,VisorSat原型加入了Starlink卫星轨道上的其他卫星。不久之后,猎鹰9号助推器的第一级降落在SpaceX设在海上的无人机上。这是猎鹰9号第五次发射和着陆,也是第一个轨道级火箭助推器。

According to SpaceX, all satellites launched on the ninth Starlink mission will be fitted out with these visors. This is scheduled to take place later in June.

据SpaceX公司称,所有执行第9次Starlink任务的卫星都将配备这些遮阳板。这将在6月下旬进行。


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