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[专题专项] O3b卫星选择阿里安--联盟

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shaolin1254 发表于 2011-12-13 19:13 | 显示全部楼层 |阅读模式

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本帖最后由 shaolin1254 于 2011-12-14 22:29 编辑

O3b signs agreement with Arianespace for third Soyuz launch

Evry, December 9, 2011

Launch of O3b Networks satellite constellation will provide service to more than 150 countries

O3b Networks Limited, the developer of a new global, high-speed, satellite-based internet network for telecommunications operators and ISPs, has exercised the first of the two options in its contract with Arianespace for an additional launch in 2014 for the O3b Networks' satellite constellation. By exercising this option, O3b has allocated a total of three launches of 12 satellites to Arianespace.


The first eight O3b satellites are planned to be lofted into orbit during 2013 by two Soyuz launch vehicles operating from the Guiana Space Center, Europe's Spaceport in French Guiana. Each satellite will weigh about 700kg at launch, has a design life of 10 years, and provides greater than 10 Gbps of capacity. The satellites will be positioned in medium Earth orbit at an altitude of just over 8000km. Arianespace will now launch a third tranche of four satellites for O3b from the CSG in 2014 on a Soyuz. In addition, Arianespace is beginning construction of a third dispenser and is accelerating the launch schedule allowing O3b to meet the growing capacity needs of its customers.


O3b Networks Ltd., based in Jersey (Channel Islands) whose investors include SES, Google Inc., Liberty Global Inc., and HSBC, plans to deploy a new satellite infrastructure providing broadband internet access to emerging countries.  More than 3 billion people in Asia, Africa, South America and the Middle East will benefit from O3b's new broadband internet infrastructure.  The satellites will be built by Thales Alenia Space.


"With Soyuz, Arianespace offers O3b a great solution that will enable faster, better and more affordable services to our customers as we expand the O3b constellation from 8 to 12 satellites," said Steve Collar, O3b Chief Executive Officer.  


"We are delighted O3b has entrusted a third launch to us," said Jean-Yves Le Gall, Chairman and CEO of Arianespace. "The selection of Soyuz, which is one of the most reliable launch vehicles in the world, clearly shows the strategic nature of our mission, namely to provide timely and successful launches of O3b's satellites."


O3b stands for the "Other 3 billion," a reference to nearly half of the world's population that is not adequately served with broadband internet access. Through partnerships with

telecommunications providers and internet service providers (ISPs), O3b will be able to combine the speed of a fiber optic network with the global reach of a satellite system to serve billions.

Based on O3b's current spectrum allocation, the company plans to initially launch up to 20 satellites. O3b satellites will be placed in orbit nearly 8,000 kilometers from the earth, four times closer to the planet than regular geostationary satellites, giving customers extremely low latency and providing access to approximately 70 per cent of the world's population with fiber quality internet connectivity.

----------------------------------------一则旧闻

阿里安公司将为O3b公司发射8颗O3b卫星
新闻发布时间:2010-03-18

  [据talksatellite网站2010年3月17日报道] O3b网络有限公司是一家为卫星运营商和网络服务商提供高速、基于卫星的国际网络的公司。这家新兴的网络中枢供应商可以连通超过150个国家。日前,该公司与阿里安航天公司签署了一份合同,为O3b公司发射卫星星座。
  
  首批8颗卫星将在2012年由“联盟”运载火箭从法属圭亚那航天中心发射。每颗O3b卫星发射重量为700千克,设计寿命10年,能够提供超过10Gbps的能力。
  
  O3b是“再创30亿”(Other 3 billion)的缩写,该公司与电信供应商和网络服务提供商合作,通过全球可用的卫星系统,将光纤网络的速度迭加。
  
  O3b公司将基于目前的频谱配置发射至少20颗卫星,O3b卫星将被定位在距地8000千米的轨道上,为用户提供服务的反应时间极短,能够连通世界上大约70%的人口,网络连通性极佳。(中国航天工程咨询中心 侯丹 陈菲)
责任编辑:中国航天工程咨询中心_侯丹

本帖被以下淘专辑推荐:

果冻布衣 发表于 2011-12-14 20:28 | 显示全部楼层
我只看懂了每个卫星大概重700KG,设计寿命为10年,至于具体什么用途还真的有点看不懂了!
 楼主| shaolin1254 发表于 2012-6-25 18:47 | 显示全部楼层
Fri, 22 June, 2012
O3b Networks Setting Sail with Cruise Ship Contract
By Peter B. de Selding

      ShareThis

Royal Carribean's Oasis of the Seas cruise ship. Credit: Photo by Paul Dickerson
Enlarge Image
PARIS — Startup satellite broadband provider O3b Networks will deliver 500 megabits per second of Ka-band broadband connectivity to the world’s largest cruise ship under a contract expected to be announced June 23.

In the latest demonstration of the growing appeal of the maritime sector for satellite fleet operators whose core business is elsewhere, O3b is signing a five-year contract with Royal Caribbean Cruises Ltd. to provide bandwidth to the Oasis of the Seas starting in mid-2013. The ship, whose itinerary is limited to the Caribbean, has capacity for 8,000 crew and passengers.

O3b, based in Britain’s Channel Islands, is building a unique satellite infrastructure that features satellites in 8,100-kilometer equatorial orbits that provide Ka-band bandwidth to telecommunications operators and other corporate customers located between 45 degrees north and 45 degrees south of the equator.

Backed by SES of Luxembourg, a major fixed satellite services fleet operator, O3b has 12 satellites under construction by Thales Alenia Space of Cannes, France.

The satellites are scheduled for launch starting in early 2013, when four spacecraft are set to be orbited by a Europeanized version of Russia’s Soyuz rocket operated from Europe’s Guiana Space Center on South America’s northeast coast. A second group of four satellites is set for launch on a Soyuz between April and June of next year, forming the core network of eight spacecraft. With these eight satellites, O3b expects to start commercial service by September. A third group of four satellites is scheduled for launch in 2014.

Operating in low Earth orbit, O3b’s satellites drift over their 600-kilometer-diameter coverage areas, requiring tracking antennas to switch to each succeeding satellite as it passes overhead.

Given this network architecture, O3b’s capacity over the oceans in its coverage area would be fully available for maritime users. The alternative is that they fly empty for the part of their orbit.

Each satellite has 10 beams, each capable of handling 600 megabits per second of bandwidth downlink and 600 megabits per second uplink.

O3b Chief Executive Steve Collar, in an interview, said the O3b satellites can offer maritime customers a multiple of the bandwidth they could get from competing satellite systems in Ka- or Ku-band.

Collar said his company is positioning itself as an alternative for that portion of the maritime market that needs real broadband. For the moment, he said, O3b is focusing on cruise ships and mega-yachts.

“The cruise ship industry today is lacking in broadband,” Collar said. “We can offer the part of the market seeking high-end connections. We are thinking of a market that is between 30 and 40 vessels in this class. We are also targeting the oil and gas sector. Today there is no good existing solution for seismic operations and we can address that market. The same is true for [maritime] government applications, which have a similar demand for broadband.”

Hardly a week has passed in recent months without a satellite industry consultancy, a satellite fleet operator or a manufacturer of satellite ground gear pointing to growing demand for broadband among maritime customers.

Those already in the maritime market, such as mobile services operator Inmarsat of London and Telenor of Norway, are adding Ka-band capacity to their fleets to provide increased bandwidth.

Those historically out of the maritime market, such as fleet operators SES, Intelsat of Luxembourg and Washington, Eutelsat of Paris and Telesat of Canada, are tinkering with their fleets to capture maritime customers.

Collar said none of them can offer the throughput of O3b with the low latency — the speed of the signal’s round trip between the satellite and the user — that O3b’s low-orbiting satellites can provide. The relative merits of low orbit versus geostationary orbit 36,000 kilometers over the equator for voice transmissions and certain Internet applications are regularly debated in the satellite telecommunications industry.

Once its O3b service begins, Royal Caribbean will be able to conduct a side-by-side comparison of O3b’s Ka-band offer with a competing Ku-band service the cruise company has installed on other vessels. The Oasis of the Seas will be outfitted with three 2.2-meter tracking antennas to communicate with the O3b satellites.

http://www.spacenews.com/satelli ... -ship-contract.html
adjust 发表于 2012-6-25 21:56 | 显示全部楼层
又一个铱星计划?虽然那个主要是通讯
liao68811 发表于 2012-6-26 15:36 | 显示全部楼层
又一个铱星计划?
snscm 发表于 2014-9-6 07:06 | 显示全部楼层
信息来源:http://www.36kr.com/p/215154.html

上月,阿丽亚娜太空公司的联盟号运载火箭发射了 4 颗 O3b Networks 用于高速互联网接入的卫星。本周早些时候,O3b 宣布,公司由 8 颗卫星组成的卫星群现已开始全面运营。

由于经济、地理因素制约等原因,全球还有 30 亿人尚未接入互联网。换言之,这也是争取新用户的巨大机会,O3b 就是“other 3 billion(另外 30 亿)”的意思,该公司由互联网巨头 Google、媒体巨头 John Malone 旗下的海外有线电视运营商 Liberty Global 以及汇丰银行联合组建,旨在亚非拉及中东的新兴地区发展互联网宽带接入。

在发达国家和城市里,光纤接入往往是高速互联网的主要技术实现方式。但是在一些地形复杂的地区,铺设光纤十分困难,而卫星技术则可以避开这些障碍。

尽管卫星互联网并非新型技术,但是传统上的卫星接入往往时延较高,影响到了实用性。这是因为普通的卫星互联网数据服务采用的卫星一般位于地球同步轨道,与地球的距离有 35400 公里之遥,而 O3b 部署的威胁距地面却只有 8000 公里,所以时延要比前者短很多,在性能上已经可以与光纤网络有得一比,从而为卫星高速互联网接入提供了可能性。投入运营的 O3b 高速互联网接入现在可以提供 600Mbps 的中继带宽,而时延则少于 150 毫秒。

有了这一数据服务,O3b 称现在自己的许多此前只能提供语音服务的运营商客户已经可以向最终客户提供 3G 数据服务了。此前,O3b 已经在库克群岛、巴布亚新几内亚及刚果民主共和国发展了客户,签约客户达 28 个。根据这些客户的测试反馈,服务相关指标(链路正常工作时间、时延、吞吐量)均达到或超出了服务水平协议(SLA)。

窥伺这一市场的不仅仅是 O3b 公司。

除了参与组建 O3b 以外,Google 自己也在开展普及互联网接入的努力。比如利用氦气球组网为偏远地区提供高速稳定无线互联网接入的Project Loon项目。最近 Google 也正准备投入10亿美元组建低轨道卫星网加强覆盖。其领军人物正是 O3b 的创始人 Greg Wyler,不过昨天上任不到一月的Wyler就莫名离开了公司。

Facebook 也有自己的互联网普及计划,其Internet.org组织的宗旨就是为世界上没有网络的地方提供互联网访问服务,目前 Facebook 已聘请美国宇航局 (NASA) 喷气式推进实验室和艾姆斯研究中心的宇航和通信专家从事“互联实验室”项目,计划利用卫星和无人机等技术,帮助互联网设施薄弱地区的用户联网。

[36氪原创文章,作者: boxi]
 楼主| shaolin1254 发表于 2014-9-6 08:21 | 显示全部楼层
而 O3b 部署的威胁距地面却只有 8000 公里,所以时延要比前者短很多,在性能上已经可以与光纤网络有得一比,从而为卫星高速互联网接入提供了可能性。投入运营的 O3b 高速互联网接入现在可以提供 600Mbps 的中继带宽,而时延则少于 150 毫秒


600Mbps带宽。。。。。。
楠宫晓风vn 发表于 2014-9-6 16:58 来自航空航天港手机版! | 显示全部楼层
shaolin1254 发表于 2014-9-6 08:21
600Mbps带宽。。。。。。

信威的灵巧通信卫星能做到多少?
poweru235 发表于 2014-9-6 17:06 | 显示全部楼层
adjust 发表于 2012-6-25 21:56
又一个铱星计划?虽然那个主要是通讯

是 但是这个计划 稳赚不赔 因为现在对于无线宽带的需求实在是超级大
darklighter 发表于 2014-9-13 17:32 | 显示全部楼层
O3b网站上说初始星座的8颗卫星等间距45°排列。
http://www.o3bnetworks.com/o3b-advantage/our-technology
Orbital spacing: 45˚


但是,目前的8颗卫星实际上有6颗呈60°等间距排列。另两颗(FM2和FM4)轨道略高出十几km,似乎是想做在轨备份。
会不会最终变成8颗45°等间距排列,尚待观察。
poweru235 发表于 2014-9-13 17:39 | 显示全部楼层
这几天看了下ipstar 包月1000人民币 请问o3b什么价位?
cmj9808 发表于 2014-9-13 18:03 | 显示全部楼层
darklighter 发表于 2014-9-13 17:32
O3b网站上说初始星座的8颗卫星等间距45°排列。
http://www.o3bnetworks.com/o3b-advantage/our-technolog ...

由于第一组4颗电力系统有缺陷,这两颗星暂时关闭作为FM1和5的备份,直到剩余4颗明年发射。
http://www.spacenews.com/article ... ice-as-a-precaution
darklighter 发表于 2015-1-11 16:32 | 显示全部楼层
根据“轨道动态”的微博:
【4颗“O3B”进入工作轨道】2014年12月21日至2015年1月7日之间,互联网通信卫星“O3B FM10、11、12、9”(40348~51,2014-083A~D)轨道升高约230km,进入平均高度8066km左右的星座工作轨道。“O3B”星座18等分轨位中的10个已部署卫星:
e40c6f31jw1eo4orjtxz0j20ku0j9abt.jpg

这是要将错就错转成6的整倍数——18等分轨位了?看起来还要有8颗星才能补完星座,后续有发射计划吗?
之前提到的FM2和FM4也已降轨进入工作轨道,和PFM、FM5工位运行。

cmj9808 发表于 2015-1-11 16:40 | 显示全部楼层
darklighter 发表于 2015-1-11 16:32
根据“轨道动态”的微博:
【4颗“O3B”进入工作轨道】2014年12月21日至2015年1月7日之间,互联网通信卫星 ...

有星座扩充计划,大概今年会签单子,但目前这一批次已经结束了
“We’re absolutely going to build more satellites,” Collar said in an interview with Spaceflight Now. “We’ve got that procurement cycle already running. We’re in the early stages of selecting both vendor and satellite configuration.”
“With the 100 gigabits in orbit right now, our next ambition is to take that to a terabit per second,” Collar said. “That’s the focus of our next-generation architecture, and that’s something we expect to be under contract — for new satellites — in the early part of 2015.”

http://spaceflightnow.com/2014/1 ... te-fleet-expansion/
darklighter 发表于 2015-1-11 16:46 | 显示全部楼层
cmj9808 发表于 2015-1-11 16:40
有星座扩充计划,大概今年会签单子,但目前这一批次已经结束了

http://spaceflightnow.com/2014/12/29 ...

看起来离后续发射还早,但现在的星座过于不对称,也许近期还会有调整。
cmj9808 发表于 2015-12-11 13:19 | 显示全部楼层
cmj9808 发表于 2015-1-11 16:40
有星座扩充计划,大概今年会签单子,但目前这一批次已经结束了

http://spaceflightnow.com/2014/12/29 ...

O3b又订购了8颗卫星,价值约3.5-4亿美元,预计在2018年将星座扩充为20颗

http://spacenews.com/o3b-orders- ... hales-alenia-space/
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