男女羞羞视频在线观看,国产精品黄色免费,麻豆91在线视频,美女被羞羞免费软件下载,国产的一级片,亚洲熟色妇,天天操夜夜摸,一区二区三区在线电影
Global EditionASIA 中文雙語Fran?ais
World
Home / World / Americas

SpaceX launches Falcon 9 with 1st broadband internet satellites

Xinhua | Updated: 2018-02-23 10:28
Share
Share - WeChat
The SpaceX Falcon 9 rocket carrying a PAZ Earth Observation satellite streaks across the sky after launching from Vandenberg Air Force Base, California, US, Feb 22, 2018. [Photo/VCG]

The company has been relatively mum about the debut of its Starlink satellites, and about the entire program itself.

"The Falcon launch carries 2 SpaceX test satellites for global broadband. If successful, Starlink constellation will serve least served," Musk teased on Wednesday.

According to the open files between SpaceX and the US Federal Communications Commission (FCC), in the coming years, the private US space firm hopes to create a giant constellation of about 12,000 of interlinked broadband-internet satellites that will orbit in a synchronized dance above Earth, delivering broadband access anywhere in the world.

Some 4,425 satellites will sit at low earth orbit (LEO), an estimate of 1150 to 1325 kilometers above Earth, while another 7,518 satellites will be launched into very-low-earth orbits (VLEO), some 335 to 346 kilometers above Earth.

According to a tally by the Union of Concerned Scientists, there are 1,738 satellites currently orbiting Earth.

Earlier this month, FCC Chairman Ajit Pai gave his endorsement to SpaceX's application to operate two huge constellations of broadband satellites.

Falcon 9's first stage for the mission previously supported the FORMOSAT-5 mission from SLC-4E in August 2017. SpaceX didn't attempt to recover Falcon 9's first stage after Thursday's launch, because it "was an older version booster."

However, there is another heightened interest in this launch.

By using "Mr Steven," a large navigable platform ship with extended "arms" and a net strung between them, SpaceX was trying to "catch" at least one of the two payload fairings that enclose the satellite at the top of the rocket.

These fairings were separated from the rocket at about three minutes after launch.

The value of these fairings is about six million US dollars, and recovering and reusing them would save money for SpaceX. Currently, a typical Falcon 9 launch costs around 62 million US dollars.

|<< Previous 1 2 3 4 Next   >>|
Most Viewed in 24 Hours
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 抚顺县| 论坛| 麻城市| 沙雅县| 呼和浩特市| 天柱县| 汉寿县| 沁水县| 东乡| 随州市| 轮台县| 青阳县| 丹凤县| 定远县| 简阳市| 班戈县| 东山县| 泰安市| 安龙县| 宁南县| 拜城县| 班戈县| 琼中| 澄江县| 新田县| 栖霞市| 鄂托克前旗| 惠安县| 普兰店市| 池州市| 东海县| 镇巴县| 绩溪县| 扎鲁特旗| 舟曲县| 梅州市| 沧州市| 济阳县| 江阴市| 永靖县| 鸡西市| 凤翔县| 苏尼特右旗| 盐池县| 泰州市| 天柱县| 和政县| 巍山| 霍林郭勒市| 衢州市| 光山县| 泸溪县| 横山县| 淳化县| 洛川县| 台江县| 宜章县| 马鞍山市| 丰台区| 和政县| 临澧县| 涡阳县| 呼和浩特市| 东乡| 新宁县| 二连浩特市| 收藏| 济南市| 西青区| 辉县市| 前郭尔| 濮阳县| 镇巴县| 保德县| 北流市| 白水县| 繁峙县| 柘荣县| 雅江县| 元谋县| 富宁县| 屏山县|