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: 蒲江县| 佳木斯市| 乐都县| 乌鲁木齐县| 承德市| 高唐县| 新竹市| 绥棱县| 双牌县| 德钦县| 镇远县| 晋江市| 丰原市| 泸溪县| 英吉沙县| 湛江市| 会东县| 定结县| 磴口县| 比如县| 平昌县| 瑞安市| 兰溪市| 澎湖县| 麦盖提县| 南乐县| 营山县| 都安| 都江堰市| 徐汇区| 宁陕县| 皋兰县| 兴城市| 达拉特旗| 东源县| 兖州市| 武威市| 洞头县| 东丰县| 桂东县| 栾川县| 井冈山市| 额济纳旗| 明星| 安徽省| 红原县| 嵩明县| 崇文区| 文成县| 原阳县| 利川市| 琼海市| 眉山市| 沾益县| 南雄市| 淅川县| 淳安县| 昌黎县| 称多县| 伊通| 长乐市| 塘沽区| 安达市| 沙雅县| 利津县| 徐闻县| 拉萨市| 赣州市| 崇信县| 新巴尔虎左旗| 延安市| 天祝| 北碚区| 芜湖市| 铁力市| 扶风县| 徐闻县| 嘉善县| 黄龙县| 绥芬河市| 永德县| 大埔区|