SpaceX будет разрабатывать спутники в Сиэтле

Автор Apollo13, 14.01.2015 11:47:55

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Apollo13

https://twitter.com/AdvtrWithKramer/status/1324555303841509379?s=20


ЦитироватьSome rain and heavy clouds recently, had more interruptions with the #starlink internet.

Apollo13





Цитироватьthis timelapse was about 45 minutes total with the movement just being in the first 10-15 minutes.
45 минут за 30 секунд.


Alex-DX


Apollo13

https://www.reddit.com/r/Starlink/comments/jromi8/starlink_to_launch_in_germany_before_the_end_of/


Цитата: undefinedSatellite Internet to be launched in Germany this year

Exclusive

by Nele Husmann

09 November 2020

The satellite internet service Starlink is to be launched in Germany before the end of this year. The subsidiary of Elon Musk's space company SpaceX is already building ground stations for communication with the satellites.

Starlink, a subsidiary of Elon Musk's space company SpaceX, plans to bring its satellite Internet service to Germany this year. This is what SpaceX manager Hans Königsmann told WirtschaftsWoche. "If everything goes according to plan, we will launch in Germany before the end of this year," says Königsmann. In Germany, almost 20 percent of all households are not yet provided with Internet access with speeds of more than 100 Mbit per second. Starlink was launched on a trial basis in the USA a few weeks ago.

Königsmann was one of the first employees of SpaceX. He is German and has therefore also taken care of the necessary approval of Starlink in Germany. The Internet provider is already registered with the Federal Network Agency as a telecommunications company and is waiting for the last approvals. Two ground stations for communication with the satellites are already under construction.

For the so-called "better-than-nothing" beta version of Starlink, which will also come to Germany, American customers pay 500 dollars for a launch package with satellite dish and router as well as 99 dollars monthly fees. In return, they receive Internet access 95 percent of the time. With 900 satellites, SpaceX still only has half as many in space as would be necessary to cover the Earth around the clock.

"Our mission is to bring fast Internet to remote areas of the world," says Königsmann. According to Königsmann, this will require 15 additional Starlink missions. "But we are already well positioned in the north," he says. "That is why Germany is excellently suited as a market - we already have a good connection there". The details of the fee structure for Germany have not yet been decided. "But we will orient ourselves on what the local market allows," says Königsmann.

Translated with www.DeepL.com/Translator (free version)



PIN

Цитата: Apollo13 от 11.11.2020 12:59:28In Germany, almost 20 percent of all households are not yet provided with Internet access with speeds of more than 100 Mbit per second.
Ужас, ну что за Интернет без 100 Mbps! Я смотрю на статистику своего маршрутизатора, за которым 2 школьника и 2 работающих удалённо и пытаюсь понять, что, что же нужно делать, чтобы занять хотя бы 40 ?

В Германии, впрочем, немало сельских районов (особенно в горных и холмистых регионах), где с Интернетом действительно всё очень печально.

Apollo13

Цитата: PIN от 11.11.2020 13:15:23Я смотрю на статистику своего маршрутизатора, за которым 2 школьника и 2 работающих удалённо и пытаюсь понять, что, что же нужно делать, чтобы занять хотя бы 40 ?


Школьники игр со стима не качают? Какой-нибудь MSFS 2020 на 150 гиг? Про торренты я даже не спрашиваю.

PIN

Цитата: Apollo13 от 11.11.2020 15:54:31Школьники игр со стима не качают? Какой-нибудь MSFS 2020 на 150 гиг?
Круглосуточно ? Даже если раз в день такое делать, это не интерактивные данные. Скачается оно через час или через два - вообще без разницы.
Про торренты я уже 11 лет как забыл, здесь отслеживают и потом приходят "письма счастья", очень недешёвые.

ZOOR

Цитата: PIN от 11.11.2020 17:12:07Про торренты я уже 11 лет как забыл, здесь отслеживают и потом приходят "письма счастья", очень недешёвые.
На Осла переходите. Там правда уже не письмо прийти может, а сразу угрюмый чел ;)
Я зуб даю за то что в первом пуске Ангары с Восточного полетит ГВМ Пингвина. © Старый
Если болит сердце за народные деньги - можно пойти в депутаты. © Neru - Старому

Apollo13

#849
Цитата: PIN от 11.11.2020 17:12:07Круглосуточно ? Даже если раз в день такое делать, это не интерактивные данные. Скачается оно через час или через два - вообще без разницы.

Вы же спрашивали чем можно занять хотя бы 40. Такие вещи занимают все что есть. 150 гиг это больше 3 часов на скорости 100 Мбит и соответственно больше 30 часов на скорости 10 Мбит. Согласитесь есть разница.

Еще вроде на стриминговых сервисах битрейты 4к видео бывают до 40 Мбит.

Цитата: PIN от 11.11.2020 17:12:07Про торренты я уже 11 лет как забыл, здесь отслеживают и потом приходят "письма счастья", очень недешёвые.

Потому и не спрашиваю :)

PIN

Цитата: ZOOR от 11.11.2020 17:17:46На Осла переходите. Там правда уже не письмо прийти может, а сразу угрюмый чел ;)
Спасибо, но я сейчас даже не представляю, зачем это нужно. Всё мировое кино и музыка есть на 2х-3х стриминговых сервисах за смешные деньги, удобно и надёжно. Ровно как непонятно зачем качать какие-то гигантские игры из Интернет - все трое моих детей в компьютерные игры не играли и не играют.

Apollo13

https://www.spaceintelreport.com/spacex-starlink-well-stay-direct-to-consumer-at-least-in-u-s-work-continues-on-lowering-user-terminal-cost/


Цитата: undefinedSPACEX STARLINK: WE'LL STAY DIRECT-TO-CONSUMER, AT LEAST IN U.S.; WORK CONTINUES ON LOWERING USER TERMINAL COST
Posted by Peter B. de Selding | Nov 13, 2020 | Broadband, Ground Segment, News, Satellite Operators

PARIS — SpaceX's Starlink broadband satellite service, now in beta testing with selected customers, will retain its direct-to-consumer business model without using intermediaries but may use distribution partners in other countries.

Starlink's initial pricing — $100 per month and $499 to purchase the Starlink user terminal — is not a beta-only introductory price but reflects what pricing will be in the full commercial service, Starlink Vice President Jonathan Hofeller said.


Apollo13

https://www.reddit.com/r/Starlink/comments/jwutpc/spacex_wants_to_start_launching_satellites_into/


ЦитироватьSpaceX wants to start launching satellites into polar orbits in December


SpaceX requests that the Commission authorize deployment of one of the sun synchronous polar shells proposed in the modification, composed of six orbital planes with 58 satellites in each at 560 km altitude.

SpaceX submits this request now because it has an opportunity for a polar launch in December that could be used to initiate its service to some of the most remote regions of the country... Launching to polar orbits will enable SpaceX to bring the same high-quality broadband service to the most remote areas of Alaska that other Americans have come to depend upon, especially as the pandemic limits opportunities for in-person contact. In addition, for many Federal broadband users, satellite service is the only communications option to support critical missions at polar latitudes, and the low-latency, high-capacity service SpaceX offers for these users could have significant national security benefits.

As a result of discussions with Amazon, SpaceX has now committed to accept the condition Amazon proposed to resolve its concern. With that issue settled, SpaceX requests that the Commission grant its modification expeditiously. But if the Commission has not completed its full review of the modification, SpaceX asks that the Commission not delay needed service to polar regions such as Alaska and instead issue a partial, appropriately conditioned grant of its modification so that SpaceX can begin deploying satellites with polar coverage that can bring the benefits of truly robust broadband service to otherwise unserved areas of the country.

Link to the full document.

Background: In April SpaceX submitted a substantial modification of its license that changes altitude of all shells, distribution of satellites, permanent minimum elevation angle as well as how satellites communicate with gateways and other changes. The application received a lot of opposition (86 filings including SpaceX replies).

If approved I believe it will take 6 launches and about 50 days for orbit raising to cover Alaska. Unlike current launches that require 4 months to distribute satellites across three planes, each polar launch provides only one plane so no long drifting between planes is needed.



Alex_II

Цитата: VSATman от 30.09.2020 22:25:14уж очень там Пожарный хвалит СтарЛинк, а его расказ как он 4-5 часов собирал антенну для ГСО направляет нас в 20 век, ибо сейчас даже отечественные МЧСовцы имеют автоматизированные антенны - кнопку нажал = через 5 минут канал уже работает 
Вот только они их видимо и имеют... А не, видел я такую однажды на буровой у ребят из ТНК когда она еще существовала... Этак году в 2009 или восьмом... А так - у всех совершенно стандартные тарелки от 0.9м до 1,8м (Ямал) И настраивать их приходится совершенно стандартно, ручками...
И мы пошли за так, на четвертак, за ради бога
В обход и напролом и просто пылью по лучу...

Apollo13

https://www.reddit.com/r/Starlink/comments/jybmgn/we_are_the_starlink_team_ask_us_anything/

AMA:


ЦитироватьGood question! The Starlink actually has no knowledge of the satellites when it powers on; the constellation is updating all the time so this would be difficult to keep up to date. The Starlink is able to electronically scan the sky in a matter of milliseconds and lock into the satellite overhead, even though its travelling 17,500 mph overhead.

When it detects a satellite the Starlink hones in on its position and makes a request to join the internet. After that the dish is able to download a schedule of which satellites to talk to next and with that it can point right at the satellites when the time comes.



ЦитироватьCreating Starlink has come with tons of exciting challenges, but top few that come to mind:
  • Selecting full phased arrays for the satellite and dish. It was a major leap of faith to start down this very technically challenging path and hope that we could arrive at an affordable and scalable implementation. 
  • Creating a truly "plug-and-play" experience for customers. We've spent a lot of effort and have gone thru tons and tons of creative ideas on how to make this as simple of an experience as possible - including mounting solutions, automated pointing of the dish, and general unboxing. Any and all ideas welcome!
  • We've also had to be creative in how we operate what is now the world's largest satellite constellation. We have a very small operations team, so automated orbit guidance and collision avoidance was a must have feature. We tell satellites what their final orbital slot is and they figure out how to get there. For collision avoidance, we upload data on close approaches to relevant satellites multiple times a day, and the satellites then calculate on their own when and how to dodge something, if necessary. (Shout out to the 18th Space Control Squadron for being really awesome partners here!)
We need help solving problems like these everyday on the Starlink program - check out https://www.spacex.com/careers/index.html if you'd like to join us!



ЦитироватьRight now, we can only deliver service at the address you sign up with on starlink.com You might get lucky if you try to use Starlink in nearby locations, but service quality may be worse.

Mobility options - including moving your Starlink to different service addresses (or places that don't even have addresses!) - is coming once we are able to increase our coverage by launching more satellites & rolling out new software.



ЦитироватьThe speed of light is faster in vacuum than in fiber, so the space lasers have exciting potential for low latency links. They will also allow us to serve users where the satellites can't see a terrestrial gateway antenna - for example, over the ocean and in regions badly connected by fiber.

We did have an exciting flight test earlier this year with prototype space lasers on two Starlink satellites that managed to transmit gigabytes of data. But bringing down the cost of the space lasers and producing a lot of them fast is a really hard problem that the team is still working on.



ЦитироватьIt's going well but this is no doubt one of the hardest challenges we're tackling and there are always ways to improve.

If you want to help design the Starlink production line or product, check out some of our hot jobs below, or email the team directly at [starlink@spacex.com](mailto:starlink@spacex.com) .

Production Design:

Automation & Controls Engineer

Sr. Automation & Controls Engineer

Test Automation Engineer

Manufacturing Development Engineer

Product Design:

Certification / Compliance

Antenna Engineer

Mechanical Engineer

RFIC Engineer

PCB Designer (Redmond) and PCB Designer (Hawthorne)

Software:

Starlink Software

Software Test



ЦитироватьWe have a couple of items in progress to further reduce power consumption. We are working on software and network updates to allow your Starlink to go into a deeper power savings mode to drop power consumption while still remaining connected to the network.  Power reductions are a key item we are focusing on for the future.



ЦитироватьWe challenge ourselves every day to push Starlink to the fundamental limitations of physics. Current Starlink satellites operate at 550 km, where light travel time is 1.8 milliseconds to Earth. The roundtrip from your house to a gaming server and back is at best 4 times 1.8 milliseconds at these altitudes, or under 8 milliseconds.

There are many obstacles that get in the way of achieving these latencies. For examples,

When satellites are not directly overhead, your data must travel through the air for more time.
Small levels of packet buffering are helpful for a stable service, but hurt latency.
Starlink traffic travels through fiber on the ground. This is an indirect pathway that is 1.5 times slower than photons in vacuum.
We will continually fight to provide the best latency possible, especially to provide a stable and reactive experience for gamers. We need experts who are passionate about pushing the boundary of physics and breaking expectations about what is possible with the internet! Send your resumes to [starlink@spacex.com](mailto:starlink@spacex.com) :)



ЦитироватьWe definitely don't recommend that you mount it on your flatbed and fly down the interstate into a storm!

The dish is not designed for tropical storms, tornadoes, etc. For high wind events it's always the safer option to bring the dish inside if you have any concerns .



ЦитироватьThis is not going to be like your regular satellite internet where it gets way too crowded--as we launch more satellites over time the network will get increasingly great, not increasingly worse.



ЦитироватьThe Starlink does have self-heating capabilities to deal with a variety of weather conditions. In fact, we'll be deploying a software update in a few weeks to upgrade our snow melting ability with continued improvements planned for the months ahead.



ЦитироватьWow that's cold! While we've performed life-leader testing down to these cold temperatures with no issues the dish is certified to operate from -30C to +40C.



ЦитироватьMobility options - including moving your Starlink to different service addresses (or places that don't even have addresses!) - is coming once we are able to increase our coverage by launching more satellites & rolling out new hardware and software.



ЦитироватьSteadily increasing network access over time to bring in as many people as possible. Notably we're planning to move from a limited beta to a wider beta in late January, should give more users an opportunity to participate.



ЦитироватьThat we have it all figured out :) We are super excited about the initial response and future potential of Starlink but we still have a ton to learn. If you know any great people who can help us with that, please have them email their resume to [starlink@spacex.com.](mailto:starlink@spacex.com.)



ЦитироватьAt this time, the Starlink beta service does not have data caps.



ЦитироватьWe're testing out IPv6 now, and will roll it out soon! Once it's ready, you'll get both an IPv4 and an IPv6 address.

IPv4 addresses are a limited resource – IPv6 is the future.



ЦитироватьNo bribes necessary, our goal is serve everyone eventually. If you really want to help drive that the best thing you can do is send great software engineers over to Starlink to help make it happen.

Argo


Alex-DX

Вот интересно, оневебу будет Маск продавать терминалы? ::)
Частотные планы, поляризация, энергетика радиолиний абсолютно одинаковая.

Василий Ратников

Цитата: Alex-DX от 23.11.2020 13:13:24оневебу будет Маск продавать терминалы?
нет )

судя по мега труду
https://habr.com/ru/post/528420/
они там лично к друг другу неприязнь испытывают )

ЦитироватьТаким образом, можно точно утверждать, что в 2013-2014 гг. внутри Google велась работа над спутниковым проектом для широкополосного доступа в интернет, и его активными участниками были Марк Кребс и Грег Уайлер. Последний решил привлечь к данному проекту Илона Маска, который только-только закладывал основы своего будущего успеха, переходя на версию 1.1 ракеты Falcon 9 и стыкуя грузовой космический корабль Dragon к МКС. Маску отводилась роль «извозчика» по доставке спутников в космос и «слесаря» по их изготовлению.

Что и как произошло в 2014 году между руководством Google, Илоном Маском и Грегом Уайлером, я сказать не могу: надо ждать, пока все они не выпустят мемуары и читать, кто, что, кому сказал и кто кого куда послал, но результат известен. Грег Уайлер расстался с Google и основал собственный проект OneWeb (WorldVu), а Илон Маск заручился финансированием от Google и в 2014 году начал аналогичный проект.

Alex-DX

Цитата: Василий Ратников от 23.11.2020 13:18:18нет )

Не бесплатно, за деньги. :)
Пусть будут продажа там, где не сможет зайти старлинк, например Россия...