SpaceX будет разрабатывать спутники в Сиэтле

[Apollo13]

https://www.reddit.com/r/spacex/comments/885aij/fcc_authorizes_spacex_to_provide_broadband/

Additional documents:

[/li]
• Memorandum Opinion, Order and Authorization - basically lists all the organisations that tried to kill Starlink and SpaceX's rebuttals.
• Jessica Rosenworcel Statement on SpaceX
  

 
EDIT: Authorisation is dependant on:

[/li]
• SpaceX posting a surety bond by April 30th, 2018
• 50% of satellites must be launched by March 29th, 2024
• All satellites must be launched by March 29th, 2027
  

OneWeb being slightly greedy:

"To avoid collisions with OneWeb satellites, OneWeb requested that grant of SpaceX's application be conditioned on SpaceX maintaining "an approximate 125 kilometer altitude buffer zone (the "Safety Buffer Zone") between its constellation and other NGSO systems,"

 
FCC smackdown:

"As a preliminary matter, the scope of OneWeb's request is unclear and could be interpreted to request a buffer zone that spans altitudes between 1,015 and 1,385 kilometers.
"Imposition of such a zone could effectively preclude the proposed operation of SpaceX's system, and OneWeb has not provided legal or technical justification for a buffer zone of this size."

[Apollo13]

http://spacenews.com/space-communications-as-the-industry-launches-new-products-military-cant-decide-what-to-buy/

DARPA has $10 million in the 2018 budget for Blackjack technology demonstrations, and is requesting $15 million for 2019.
The demonstrations are planned for 2021, said Kennedy. "We can show we can leverage commercial constellations and provide real capability to the warfighter."
According to industry sources, companies likely to compete in the Blackjack program include Iridium, SpaceX, Telesat and LeoSat.

[Apollo13]

https://www.cnbc.com/2018/04/10/space-angels-q1-report-small-rockets-backed-by-silicon-valleys-money.html

There were 20 deals worth nearly $1 billion in the space industry in the first quarter, according to investment firm Space Angels — though $500 million of that was a single deal: A big investment from Fidelity Investments in Elon Musk's SpaceX to develop its constellation of 4,425 broadband satellites.

[Искандер]

Apollo13 пишет:
https://www.cnbc.com/2018/04/10/space-angels-q1-report-small-rockets-backed-by-silicon-valleys-money.html

There were 20 deals worth nearly $1 billion in the space industry in the first quarter, according to investment firm Space Angels — though $500 million of that was a single deal: A big investment from Fidelity Investments in Elon Musk's SpaceX to develop its constellation of 4,425 broadband satellites. 

Я так и думал. Уж больно заманчивая идея иметь сеть низколетящих спутников двойного назначения, которая покрывает всю планету. Это и глобальный контроль над трафиком, и всевидящее око и т.д. Не могло это пройти мимо государства и оно обязано было поучаствовать. Да кто ещё Маску столько денег на  такое богоугодное, но сомнительно что рентабельное, делодело даст?д

[Apollo13]

Elon Musk‏Verified account @elonmusk 14h14 hours ago

Replying to @nitantbhartia @ninoles and 2 others

Pretty good. TinTin A & B are both closing the link to ground w phased array at high bandwidth, low latency (25 ms). Good enough to play fast response video games.

[Apollo13]

Apollo13 пишет: 

G C ‏ @SmileSimplify  11h11 hours ago 

Will TinTin A & B be the only demo units Starlink deploys before start of full production & deployment? Or will there be a few more? Do you have an (aspirational) timeline for when Starlink would begin commercial service?

Elon Musk ‏Verified account @elonmusk  

Replying to  @SmileSimplify  @nitantbhartia and 3 others

Will do another rev before final design

[Apollo13]

Eric Ralph‏ @13ericralph31 18h18 hours ago

Eric Ralph Retweeted Susanne Auer

Tintin B is just fine, but Tintin A has struggled with propulsion issues. As a result, B has followed A in order to derive as much value as possible from testing all non-propulsion systems. A second round of prototypes are definitely in order, as @elonmusk recently noted.

[Apollo13]

Ходят упорные слухи, что ДУ как минимум одного Тинтина не работает.

[Apollo13]

https://www.reddit.com/r/spacex/comments/9jx8dy/susanne_auer_on_twitter_tmfassociates_points_out/e6uwp8r/

...the reality is that the Starlink satellites have not performed in accordance with the plan that SpaceX presented to the FCC as recently as February 1, 2018, when Patricia Cooper told the FCC that:

"As set out in the original application, after system checkouts are performed and the system is evaluated as ready to proceed, SpaceX will engage in orbit-raising maneuvers until the spacecraft reach a circular orbit at an altitude of 1,125km."

And the original application stated that:

"After system checkouts are performed and the system is evaluated as ready to proceed, the orbit-raising phase of the mission will commence. This segment will last approximately half a year depending on system performance."

Both satellites have remained around the launch altitude of 514km, with TinTin A not showing any meaningful evidence of propulsion since at least early March, and TinTin B not experiencing any significant change in altitude after attempting a few orbital maneuvers. So it seems all but certain that there has been a major issue with the propulsion system onboard both of the Starlink satellites.

When confronted with the rumors of a satellite failure by SpaceIntelReport, SpaceX stated that the satellites "were delivered to their intended orbit, communicated with ground stations, continue to communicate with ground stations, and remain in operation today." That may all be true, but says nothing about whether the propulsion system has failed.

[tnt22]

https://www.teslarati.com/spacex-starlink-satellite-prototypes-unique-solar-arrays/

SpaceX's Starlink satellites may use unique solar array deployment mechanism

By Eric Ralph
Posted on October 2, 2018

Spotted on an official SpaceX T-shirt commemorating Starlink's first two prototype satellites and corroborated through analysis of limited public photos of the spacecraft, SpaceX appears to be testing a relatively unique style of solar arrays on the first two satellites launched into orbit, known as Tintin A (Alice) and B (Bob).

It's difficult to judge anything concrete fr om the nature of what may be immature prototypes, but SpaceX's decision to take a major step away from its own style of solar expertise – Cargo Dragon's traditional rigid panel arrays – is almost certainly motivated by a need to push beyond the current state of the art of satellite design and production.

Спойлер

The axis Tintin solar arrays would deploy along. (SpaceX)


Just like a scissor mechanism, Tintin's solar arrays have an extremely thin sandwich of what looks like four interlocking leaves. (SpaceX)


If the thin structure is a scissor deployment mechanism, the wider black section would be a housing for wiring and the solar array panels, likely thin and flexible rectangles that fold out to reach their full 6m length. (SpaceX)

Unlike any discernible solar panel deployment mechanism with a flight history, SpaceX's Starlink engineers seem to have taken a style of deployment used successfully on the International Space Station and mixed it with a modern style of solar arrays, relying on several flexible panels that can be efficiently packed together and designed to be extremely lightweight. While a major departure from SpaceX's successful Cargo Dragon solar arrays, the mechanisms visible on the Tintins seem to have the potential to improve upon the packing efficiency, ease of manufacturing, and number of failure modes present on Dragon's panels.

https://www.youtube.com/watch?time_continue=1&v=XRXbi3sQKWc
In essence, those three motivations are indicative of the challenges SpaceX's Starlink program must solve in a more general sense. In order to even approach SpaceX's operational aspirations for Starlink (i.e. high-speed internet delivered from space almost anywhere on Earth), the company will need to find ways to mass-produce hundreds or thousands of high-performance satellites annually at a price-per-unit unprecedented in the history of commercial satellites, all while keeping the weight and volume of each satellite as low as possible (no more than a few hundred kilograms).

https://www.youtube.com/watch?time_continue=2&v=m5Pqa5USKzU
To give an idea of wh ere the industry currently stands, satellite internet provider Viasat launched its own Viasat-2 spacecraft in 2017. Weighing in around 6500 kg (14300 lb), the immense satellite cost at least $600 million and offers an instantaneous bandwidth of 300 gigabits per second, impressive but also gobsmackingly expensive at $2 million/Gbps. To ever hope to make Starlink a reality, SpaceX will need to beat that value by at least a factor of 5-10, producing Starlink satellites for no more than $1-3 million apiece ($4.5B-$13.5B alone to manufacture the initial 4,425 satellite constellation) with a bandwidth of 20 Gbps – baselined in official statements.

Compared to the state of the art, a $1 million satellite with optical (laser) interlinks, multiple phased array antennae, electric ion propulsion, two 1-2 kW solar arrays, and bandwidth on the order of 20 Gbps is – to put it nicely – wildly ambitious. Fundamentally, SpaceX will need to revolutionize design and mass-production of all of the above subcomponents, and perhaps the unfamiliar solar arrays present on the Tintin twins are a first step towards tackling at least one of those revolutions-in-waiting.

G C‏ @SmileSimplify 26 мая

Will TinTin A & B be the only demo units Starlink deploys before start of full production & deployment? Or will there be a few more? Do you have an (aspirational) timeline for when Starlink would begin commercial service?


Elon Musk ‏Подлинная учетная запись @elonmusk

Will do another rev before final design

17:19 - 26 мая 2018 г.

According to CEO Elon Musk, another set of prototype satellites will likely be launched and tested in orbit before settling on a finalized Starlink design.

[свернуть]

[Max Andriyahov]

Маск разбушевался!) 

https://www.reuters.com/article/us-spacex-starlink-insight/musk-shakes-up-spacex-in-race-to-make-satellite-launch-window-sources-idUSKCN1N50FC?fbclid=IwAR2s3X4H-JPCHpcD4ckgEefOielClYyUUScSqBzbihsZDII5uIm1d3_5XBc

[Чебурашка]

Ого... Илон резкий как понос

 Musk had fired at least seven members of the program's senior management team

[Apollo13]

Там реально жесть. Все руководство пректа в Редмонде уволено за то что не смогло обеспечить запуск первой партии спутников в середине 2019 и заменено людьми из Хоторна. Предыдущий руководитель хотел запустить еще 3 итерации тестовых спутников.

Musk shakes up SpaceX in race to make satellite launch window: sources

Eric M. Johnson, Joey Roulette



SEATTLE/ORLANDO, Fla. (Reuters) - SpaceX Chief Executive Officer Elon Musk flew to the Seattle area in June for meetings with engineers leading a satellite launch project crucial to his space company's growth.



FILE PHOTO: SpaceX headquarters is shown in Hawthorne, California, U.S. September 19, 2018. REUTERS/Mike Blake/File Photo

Within hours of landing, Musk had fired at least seven members of the program's senior management team at the Redmond, Washington, office, the culmination of disagreements over the pace at which the team was developing and testing its Starlink satellites, according to the two SpaceX employees with direct knowledge of the situation.
Known for pushing aggressive deadlines, Musk quickly brought in new managers fr om SpaceX headquarters in California to replace a number of the managers he fired. Their mandate: Launch SpaceX's first batch of U.S.-made satellites by the middle of next year, the sources said.
The management shakeup and the launch timeline, previously unreported, illustrate how quickly Musk wants to bring online SpaceX's Starlink program, which is competing with OneWeb and Canada's Telesat to be first to market with a new satellite-based Internet service.
Those services - essentially a constellation of satellites that will bring high-speed Internet to rural and suburban locations globally - are key to generating the cash that privately-held SpaceX needs to fund Musk's real dream of developing a new rocket capable of flying paying customers to the moon and eventually trying to colonize Mars.
"It would be like rebuilding the Internet in space," Musk told an audience in 2015 when he unveiled Starlink. "The goal would be to have a majority of long-distance Internet traffic go over this network."
But the program is struggling to hire and retain staff, the employees said. Currently, about 300 SpaceX employees work on Starlink in Redmond, the sources said. According to GeekWire, Musk said in 2015 the Redmond operation would have "probably several hundred people, maybe a thousand people" after 3-4 years in operation.


So far this year, about 50 employees left the company "on their own accord," one of the SpaceX employees said, though the reason for those departures was unclear. Overall, SpaceX employs more than 6,000 staff.
As of Tuesday, there were 22 job openings - including a job making espresso drinks - for the Redmond office, according to SpaceX's website.
SpaceX spokeswoman Eva Behrend told Reuters the Redmond office remains an essential part of the company's efforts to build a next-generation satellite network.
"Given the success of our recent Starlink demonstration satellites, we have incorporated lessons learned and re-organized to allow for the next design iteration to be flown in short order," Behrend said.
She had no further comment on the reorganization or the launch window, but noted the strategy was similar to the rapid iteration in design and testing which led to the success of its rockets.
Among the managers fired from the Redmond office was SpaceX Vice President of Satellites Rajeev Badyal, an engineering and hardware veteran of Microsoft Corp and Hewlett-Packard, and top designer Mark Krebs, who worked in Google's satellite and aircraft division, the employees said. Krebs declined to comment, and Badyal did not respond to requests for comment.
The management shakeup followed in-fighting over pressure from Musk to speed up satellite testing schedules, one of the sources said. SpaceX's Behrend offered no comment on the matter.


Culture was also a challenge for recent hires, a second source said. A number of the managers had been hired from nearby technology giant Microsoft, wh ere workers were more accustomed to longer development schedules than Musk's famously short deadlines. Another senior manager that left SpaceX was Kim Schulze, who was previously a development manager at Microsoft, one of the people said. Schulze did not respond to a request for comment.
"Rajeev wanted three more iterations of test satellites," one of the sources said. "Elon thinks we can do the job with cheaper and simpler satellites, sooner."
A billionaire and Chief Executive Officer of Tesla Inc, Musk is known for ambitious projects ranging from auto electrification and rocket-building to high-speed transit tunnels.
A Musk trust owns 54 percent of the outstanding stock of SpaceX, according to a 2016 U.S. Securities and Exchange Commission filing, SpaceX's most recent.
JUNE 2019 LAUNCH GOAL
SpaceX has said it would launch its satellites in phases through 2024. It goal of having Internet service available in 2020 is "pretty much on target" with an initial satellite launch by mid-2019, one of the sources said.
OneWeb aims for a first launch between December and February 2019, while Telesat was targeting 2022 for broadband services.
SpaceX employees told Reuters that two Starlink test satellites launched in February, dubbed Tintin A and B, were functioning as intended. The company is refining the orbital path of the satellites after the U.S. Federal Communications Commission, which oversees satellites in orbit, approved a request from SpaceX to expand Tintins' altitude range, one of the sources said.



FILE PHOTO: SpaceX CEO Elon Musk talks to his workforce as he announces the world's first private passenger scheduled to fly around the Moon aboard SpaceX's BFR launch vehicle, at the company's headquarters in Hawthorne, California, U.S. September 17, 2018. REUTERS/Gene Blevins/File Photo



The FCC confirmed SpaceX's modifications, which have not been reported previously, but declined further comment.
"We're using the Tintins to explore that modification," one of the SpaceX employee sources said. "They're happy and healthy and we're talking with them every time they pass a ground station, dozens of times a day."
SpaceX engineers have used the two test satellites to play online video games at SpaceX headquarters in Hawthorne, California and the Redmond office, the source said.
"We were streaming 4k YouTube and playing 'Counter-Strike: Global Offensive' from Hawthorne to Redmond in the first week," the person added.
MORE SATELLITES
In March, the FCC approved Musk's plan to beam down Internet signals from 4,425 small satellites launched into standard low-Earth orbit - more than two times the total number of active satellites there presently.
One SpaceX engineer told Reuters the company has studied plans to add roughly 10,000 additional satellites after its first array is live to meet bandwidth demand in the coming 20 years. Behrend declined to comment on the plans and referred to a previous FCC filing, which states an additional 7,518 satellites are under consideration.
Such a move would keep it in the race to expand affordable high-speed Internet access to billions of people in rural or suburban areas globally. The Satellite Industry Association, a lobby group, estimates the global market for satellite-based broadband and television services is worth $127.7 billion, dwarfing the roughly $5.5 billion satellite launch services market.






McLean, Virginia-based OneWeb is working to provide internet service from roughly 900 satellites after raising more than $2 billion from SoftBank, the Coca-Cola Company and others.
Telesat, backed by Loral Space & Communications Inc, said on Oct. 23 it conducted the first-ever live test of in-flight broadband via a satellite in low-Earth orbit, and was targeting 2022 for broadband services from a constellation of some 300 satellites.
SpaceX aims to provide Internet service by linking its satellites to ground stations and mountable terminals about the size of a pizza box at homes or businesses, according to the FCC filing. The U.S. market for broadband is already dominated by several incumbent communications companies, including Comcast Corporation. Comcast declined to comment on the potential new competition.
While SpaceX's model of reusing rockets has generated cash, it is not enough to cover the roughly $5 billion cost to develop its Big Falcon Rocket that Musk wants one day to fly to Mars.
"There had to be a much bigger idea for generating cash to basically realize the Mars plans," said one of the SpaceX employees. "What better idea than to put Comcast out of business?"

[triage]

Apollo13 пишет:
Все руководство пректа в Редмонде уволено

что-то утром в этой статье Рейтерс не было что Все руководство. Именно Все, а не некоторые

[Apollo13]

pnetmon пишет:

Apollo13 пишет:
Все руководство пректа в Редмонде уволено

что-то утром в этой статье Рейтерс не было что все руководство.

Within hours of landing, Musk had fired at least seven members of the program's senior management team at the Redmond, Washington

Among the managers fired from the Redmond office was SpaceX Vice President of Satellites Rajeev Badyal, an engineering and hardware veteran of Microsoft Corp and Hewlett-Packard, and top designer Mark Krebs, who worked in Google's satellite and aircraft division, the employees said.

Another senior manager that left SpaceX was Kim Schulze, who was previously a development manager at Microsoft, one of the people said.

[Max Andriyahov]

Не охота пинать дохлого льва, но на этом фоне сегодняшняя истерика Гогозкина кажется особенно смешной. Простите.


Но все так. Если ты не понимаешь, чем занимаются низовые исполнители, ты - чмо.

[triage]

Max Andriyahov пишет:
Не охота пинать дохлого льва, но на этом фоне сегодняшняя истерика Гогозкина кажется особенно смешной. Простите.
 https://max-andriyahov.livejournal.com/171669.html
 Но все так. Если ты не понимаешь, чем занимаются низовые исполнители, ты - чмо.

Да хрень написана

(2002 год, не забываем) Андрею Мельниченко. Парнишка талантлив, это да. НО! Он может выйти из своего шикарного кабинета, спуститься в оперзал, сменить любую операционистку и набить платёжку, оформить вклад или выдать справку быстрее ЛЮБОЙ операционистки. Или, естественно, провести кредитный комитет или подготовить обоснование одобрения заявки для него. И КАЖДЫЙ  сотрудник, от зама до операционистки об этом - знает."

Как работающий от админа (включая иногда операционистом по физикам ради разнообразия), потом операционистом (год по юрикам) именно начале середине 00 и потом админом. Нахрена операционистке много знать набивая платежку. Платежку приносит клиент. Задача операционистки проверив параметры меньше чем пальцев на одной руке ТУПО безошибочно ввести данные с платежки в компьютер, знать нужно только куда нажимать
Вот если бы там было написано подбить и проверить всю отчетность за предыдущий банковский день  

А вот как появлялись начальники отдельных дополнительных офисов (где в подчинении и операционистки и кредитные специалисты и кассиры и ....) после работы незначительное время на должности ниже чем заместитель начальника кредитного отдела видел.

[Not]

Apollo13 пишет:

Among the managers fired from the Redmond office was SpaceX Vice President of Satellites Rajeev Badyal, an engineering and hardware veteran of Microsoft Corp and Hewlett-Packard, and top designer Mark Krebs, who worked in Google's satellite and aircraft division, the employees said.

Примчался Маск с горящим задом и показал, кто тут главный дизайнер!    А если серьезно, то уход главного конструктора - это очень серьезно. Чуваки - ракетчики, которых Маск притащил из Хоторна ничего особо выдающегося не делали, тут же ряд принципиально новых решений.

[Apollo13]

Starlink network topology simulation & predictions


https://www.youtube.com/watch?v=AdKNCBrkZQ4&feature=youtu.be

https://www.youtube.com/watch?v=AdKNCBrkZQ4&feature=youtu.be

[Чебурашка]

Дыра над полюсами