SpaceX Starlink flight 1 - Falcon 9-072 (B1048.4) - CCAFS SLC-40 - 24.05.2019, 02:30 UTC

Автор tnt22, 07.05.2019 23:49:41

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tnt22

#220
https://www.spacex.com/webcast
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STARLINK MISSION
On Thursday, May 23 at 10:30 p.m. EDT SpaceX launched 60 Starlink satellites from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. SpaceX's Starlink is a next-generation satellite network capable of connecting the globe, especially reaching those who are not yet connected, with reliable and affordable broadband internet services.

Falcon 9's first stage for this mission previously supported the Telstar 18 VANTAGE mission in September 2018 and the Iridium-8 mission in January 2019. Following stage separation, SpaceX landed Falcon 9's first stage on the "Of Course I Still Love You" droneship, which was stationed in the Atlantic Ocean. Approximately one hour and two minutes after liftoff, the Starlink satellites were deployed at an altitude of 440km. They then used onboard propulsion to reach an operational altitude of 550km.
Upd.
Теперь и на индивидуальной станичке - https://www.spacex.com/news/2019/05/24/starlink-mission

tnt22

https://tass.ru/kosmos/6466135
Цитировать24 МАЯ, 06:48
SpaceX сообщила об успешном выводе в космос 60 спутников Starlink

НЬЮ-ЙОРК, 24 мая. /ТАСС/. Американская компания SpaceX ("Спейс-экс") в четверг вывела в космос 60 спутников проекта Starlink ("Старлинк"). Об этом говорится в "Твиттере" компании Илона Маска.

"Успешный вывод 60 спутников Starlink подтвержден", - информировали в SpaceX. Компания сравнивает группировку спутников с колодой карт, свободно парящей в космическом пространстве. Согласно трансляции, аппараты начали медленно отделяться друг от друга.

На этом трансляция миссии прекратилась. SpaceX обещала публиковать на своем сайте информацию о дальнейшем передвижении спутников к заданной орбите.

Старт носителя Falcon-9 ("Фэлкон-9") с пускового комплекса 40 на базе ВВС США на мысе Канаверал (штат Флорида) состоялся в 22:30 по времени Восточного побережья США (05:30 мск пятницы). SpaceX планировала вывести спутники на орбиту на высоте 440 км приблизительно через один час и две минуты после запуска. Впоследствии аппараты достигнут заданной высоты 550 км, используя двигатели малой тяги.
Спойлер
Starlink разработан в 2015 году компанией SpaceX предпринимателя Илона Маска для обеспечения глобальной передачи интернет-трафика. Проект предусматривает размещение на низкой стационарной орбите Земли группировки в составе более 11 тысяч спутников. Реализация первого этапа проекта - запуск 800 спутников при численности персонала компании 1,2 тысячи человек - требует вложений в размере 3,5 млрд долларов. По оценке SpaceX, размещение на орбите всех 11 тысяч спутников и ввод их в эксплуатацию обойдется в 10 млрд долларов.
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tnt22


tnt22

Цитировать45th Space Wing‏Подлинная учетная запись @45thSpaceWing 2 ч. назад

30 years after the invention of the World Wide Web, we launched Starlink to provide better access to the internet around the globe! Congrats to the 45th Space Wing men & women and @SpaceX for a successful launch! We are the World's #PremierGatewaytoSpace!


tnt22


tnt22

ЦитироватьSpaceX | Successful deployment of 60 Starlink satellites confirmed!

space googlevesaire

Опубликовано: 23 мая 2019 г.
https://www.youtube.com/watch?v=LumdiRneEo4https://www.youtube.com/watch?v=LumdiRneEo4 (3:34)

tnt22

ЦитироватьElon Musk‏Подлинная учетная запись @elonmusk 21:41 PDT - 23 мая 2019 г.

В ответ @SpaceX

All 60 Starlink satellites online, solar array deployment coming up soon


21:42 PDT - 23 мая 2019 г.

В ответ @elonmusk @SpaceX

Krypton ion thrusters activate in about 3 hours to raise orbit

tnt22

#228
+++
ЦитироватьElon Musk‏Подлинная учетная запись @elonmusk 4 мин. назад

В ответ @SpaceX

Fairing halves recovered



tnt22

ЦитироватьKen Kremer‏ @ken_kremer 5 мин. назад

1st Streak shot from tonights gorgeous and crackling loud @SpaceX #Starlink launch on #Falcon9 at 1030 PM ET - from ITL causeway on #CCAFS with water reflection. #Starlink1 60 sats successfully deployed


Искандер

Отказались от сеток и все стало получаться.
Aures habent et non audient, oculos habent et non videbunt

tnt22

https://tass.ru/kosmos/6466427
Цитировать24 МАЯ, 09:43
Маск подтвердил, что запущенные 60 спутников Starlink находятся в рабочем состоянии

Глава SpaceX отметил, что развертывание солнечных батарей начнется в ближайшее время

ТАСС, 24 мая. Выведенные в космос в четверг компанией SpaceX 60 спутников проекта Starlink находятся в рабочем состоянии. Об этом на своей странице в Twitter сообщил глава компании, предприниматель Илон Маск.

"Все 60 спутников Starlink находятся в режиме онлайн", - написал он. Маск также отметил, что "развертывание солнечных батарей начнется в ближайшее время".
Спойлер
Старт носителя Falcon-9 с пускового комплекса 40 на базе ВВС США на мысе Канаверал (штат Флорида) состоялся в 22:30 по времени Восточного побережья США (05:30 мск пятницы). SpaceX планировала вывести спутники на орбиту на высоте 440 км приблизительно через один час и две минуты после запуска. Впоследствии аппараты достигнут заданной высоты 550 км, используя двигатели малой тяги.

Starlink разработан в 2015 году компанией SpaceX предпринимателя Илона Маска для обеспечения глобальной передачи интернет-трафика. Проект предусматривает размещение на низкой стационарной орбите Земли группировки в составе более 11 тыс. спутников. Реализация первого этапа проекта - запуск 800 спутников при численности персонала компании 1,2 тыс. человек - требует вложений в размере $3,5 млрд. По оценке SpaceX, размещение на орбите всех 11 тыс. спутников и ввод их в эксплуатацию обойдется в $10 млрд.
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Not

ЦитироватьAstro Cat пишет:
Чет я не понял. Мандула со спутниками вся отделилась. Я то думал ступень будет закручена вокруг оси и начнет по одному их "отстреливать" за счет центробежной силы.
Там несколько сомнительных моментов.

1) видеоряд прервался аккурат во время отделения ПН, причем объяснение было - дескать ожидаемый перерыв в трансляции. Так не бывает ;) Я бы сказал - прервали дабы не смущать народ.

2) полное отсутствие запланированной (если верить Маску) раскрутки. Кассета отделилась, стягивающие тросы вытянулись-смотались, а дальше оно полетело одной большой кучей. Взаимная гравитация может тут сыграть интересную штуку во время разворачивания СБ.

Димитър

Цитироватьtnt22 пишет:
размещение на орбите всех 11 тыс. спутников и ввод их в эксплуатацию обойдется в $10 млрд.
По 900 000 дол. на спутник

tnt22

ЦитироватьMarcus Cote‏ @marcuscotephoto 1 ч. назад

Through the lightning tower-- #Falcon9 lifts from SLC-40 for the third time last night and successfully lands aboard SpaceX's droneship #OCISLY. Here's a photo from our sound-activated camera placed at the launch pad. (@marcuscotephoto / Space Coast Times)
#Starlink #SpaceX


tnt22

ЦитироватьJohn Kraus‏ @johnkrausphotos 50 мин. назад

The first 60 #SpaceX #Starlink satellites beam into orbit at 10:30 P.M. yesterday evening! Long exposure photograph taken from Space Launch Complex 40 at Cape Canaveral Air Force Station.


tnt22

Цитировать Trevor Mahlmann‏ @TrevorMahlmann 1 ч. назад

Space laser My first attempt at a long exposure from the launch pad! Definitely room for improvement, but glad I have the maths right on level of exposure. //:https://www.tmahlmann.com/photos/Rockets/SpaceX/SpaceX-Starlink/i-bScRw7t/ ...


tnt22


tnt22


tnt22

https://spaceflightnow.com/2019/05/24/spacexs-first-60-starlink-broadband-satellites-deployed-in-orbit/
ЦитироватьSpaceX's first 60 Starlink broadband satellites deployed in orbit
May 24, 2019Stephen Clark


A SpaceX Falcon 9 rocket lifts off Thursday night fr om pad 40 at Cape Canaveral Air Force Station, Florida. Credit: SpaceX

SpaceX successfully delivered the first 60 members of the company's Starlink broadband satellite fleet to orbit Thursday night after a launch fr om Cape Canaveral.

The 60 small satellites, each with a flat-panel design and built by an in-house SpaceX team, will be joined by hundreds more Starlink craft over the next year to fill out the network's preliminary constellation. Eventually, SpaceX says thousands of Starlink satellites may be launched to provide high-speed Internet services to consumers around the world.

Thursday night's launch fr om Cape Canaveral was the first mission dedicated to the multibillion-dollar Starlink project.

"This is one of the hardest engineering projects I've ever seen done, and it's been executed really well," said Elon Musk, SpaceX's founder and CEO, during a press briefing last week. "There is a lot of new technology here, and it's possible that some of these satellites may not work, and in fact a small possibility that all the satellites will not work.

"We don't want to count anything until it's hatched, but these are, I think, a great design and we've done everything we can to maximize the probability of success," he said.

A 229-foot-tall (70-meter) Falcon 9 rocket took off from Cape Canaveral's Complex 40 launch pad at 10:30 p.m. EDT Thursday (0230 GMT Friday) to begin the journey into orbit atop 1.7 million pounds of thrust from nine Merlin main engines.

SpaceX tried to launch the mission twice last week, but unfavorable upper level winds forced the team to call off one launch attempt. Then SpaceX scrubbed another countdown the next day to allow time for engineers to upd ate the software on the Starlink satellites, delaying the mission by a week.

Heading northeast from Florida's Space Coast, the launcher's first stage finished its job on the mission in two-and-a-half minutes, then separated and accomplished an on-target propulsive landing on SpaceX's drone ship in the Atlantic Ocean.

The landing punctuated the booster's third flight, following successful launches and recoveries last September and in January. SpaceX could refurbish and reuse the rocket again.

Recovery teams in the Atlantic also retrieved the two-part nose cone from the Falcon 9 rocket, which fell into the sea under parachutes. SpaceX has not yet re-flown a payload fairing.

The Falcon 9's second stage engine shut down just shy the flight's nine-minute point, and the rocket coasted across the Atlantic, over Europe and the Middle East, then reignited its Merlin engine for a brief maneuver to nudge the Starlink satellites into a targeted orbit 273 miles (440 kilometers) above Earth.

The rocket commanded release of the 60 Starlink satellites, each weighing around 500 pounds (227 kilograms), at 11:32 p.m. EDT (0332 GMT) as the launcher soared over a ground station in Tasmania. Live video transmitted through the tracking station showed the satellites flying free of the Falcon 9's second stage, backdropped by the curvature of the Earth.

Stacked together inside the payload shroud of the Falcon 9 rocket, the 60 satellites weighed 15 tons (13,620 kilograms), making the cargo on Thursday night's launch the heaviest ever lofted into orbit by SpaceX. The new mass record bested the weight of SpaceX's fully-fueled Crew Dragon spacecraft, which launched March 2 on an unpiloted test flight to the International Space Station.

Musk described the unique Starlink separation scheme in a pre-launch press briefing.

"It will be a little bit different looking deployment than people are used to," Musk told reporters last week. "It's going to be a very slow deployment wh ere we rotate the stage, and each of the satellites on the stack has a slightly different amount of rotational inertia."

Live video from a camera on-board the upper stage showed the rocket begin a spin maneuver just before the deployment. The 60 flat-panel satellites separated in a clump, instead of one-at-a-time or in pairs, as spacecraft often do when releasing from the launch vehicle.

"So there's not actually a spring-based or specific deployment mechanism per satellite," Musk said. The satellites will kind of be deployed, it's almost like spreading a deck of cards on a table. This will be kind of weird compared to normal satellite deployments."

The Starlink satellites could be seen slowly dispersing soon after separating from the Falcon 9, before SpaceX ended its live webcast of the mission. The upper stage later conducted a deorbit burn to drop back into the atmosphere and burn up.

Musk tweeted after Thursday night's launch that all 60 Starlink satellites were "online." He said the satellites were expected to extend their power-generating solar panels and activate their ion thrusters within a few hours.

Each satellite carries a krypton ion propulsion system and Ku-band antennas to continue in-orbit demonstrations of SpaceX's planned broadband network, which may eventually number up to 12,000 small relay stations in low Earth orbit.
Спойлер
Future Starlink satellites will carry Ka-band and V-band radio transmission hardware, along with laser inter-satellite links to allow signals to bounce between spacecraft in orbit, rather than going through a ground station.

Each Starlink spacecraft has a flat-panel design with four high-throughput phased array antennas and a single solar array, according to information released by SpaceX. The company built the satellites at a new facility in Redmond, Washington.

SpaceX says the Starlink satellites are the first to use krypton-fueled ion thrusters. The propulsion system ionizes the krypton gas and uses electricity to accelerate the atoms out the back of the engine to produce a low level of thrust.

Ion thrusters provide a more fuel-efficient form of propulsion than conventional liquid propellants, but most satellites that use ion propulsion consume xenon gas. Krypton is less expensive than xenon, but offers lower thrust efficiency, according to a 2011 paper presented by U.S. Air Force and satellite industry engineers.

The satellites also have computer smarts allowing the craft to autonomously avoid collisions with other objects in space.

Proposals by SpaceX and other would-be commercial broadband providers planning to launch thousands of new satellites into orbit have raised questions about traffic management. SpaceX originally intended to launch the first batch of Starlink satellites to a higher 741-mile-high (1,150-kilometer) orbit, but the company requested authority from the Federal Communications Commission last year to begin operating the network at a lower altitude.

The FCC approved the request last month.


Artist's concept of a Starlink satellite with its solar array wing unfurled. Credit: SpaceX

SpaceX officials said the lower operating altitude for the first Starlink satellites will help assuage space debris concerns. If a Starlink relay station in the lower orbit fails, atmospheric drag will bring the satellite back to Earth within about five years.

"Additionally, 95 percent of all components of this design will quickly burn in Earth's atmosphere at the end of each satellite's life cycle — exceeding all current safety standards — with future iterative designs moving to complete disintegration," SpaceX said in the press kit on the Starlink mission.

SpaceX launched two Starlink test satellites as piggyback payloads on a Falcon 9 launch last year, but the craft launched Thursday night are lighter and use a different design.

Using their krypton thrusters, the new Starlink satellites will climb into higher orbits 341 miles (550 kilometers) above Earth, at an inclination of 53 degrees to the equator.

Past initiatives to create an expansive communications satellite network in low Earth orbit, a regime a few hundred miles above Earth, have met technical and financial headwinds. Traditional communications satellites fly in higher geostationary orbits more than 22,000 miles (nearly 36,000 kilometers) above the equator, with a single spacecraft covering a wide geographic region.

In lower orbits, the Starlink satellites will bounce signals from user-to-user via an intricate web of radio connections through ground stations, and eventually through the inter-satellite laser cross-links.

"The goal of the Starlink system is to provide high bandwidth, low latency connectivity, ideally throughout the world provided we get regulatory approval, and this would provide connectivity to people that don't have any connectivity today, or wh ere it's extremely expensive and unreliable as well as providing options for people who may have connectivity today in developed areas of the world but it's very expensive," Musk said. "This will provide a competitive option for them."

Starlink is one of several companies working on constellations of small broadband satellites in low Earth orbit. Backed by a roster of international investors, including Japan's SoftBank Group, OneWeb launched its first six satellites in February on a Soyuz rocket, with plans to send hundreds more into orbit over the next two years, and Amazon says it plans to build a network consisting of thousands of satellites for Internet service.

"There's a lot of fundamental goodness about Starlink," he said. "We just want to make sure the appropriate caveats are there. There's a lot of technology, this is very hard, and quite frankly in the past, the success of low-Earth orbit communications constellations, I believe none have successfully gone into operation without going bankrupt."

SpaceX has secured regulatory approval from the Federal Communications Commission for nearly 12,000 Starlink satellites broadcasting in Ku-band, Ka-band and V-band frequencies, with groups of spacecraft positioned at different altitudes and in various planes in low Earth orbit. But the early focus is on launching hundreds of the satellites to establish a network that covers most of the world's population.

"It's important to distinguish between initial operational capability, which is around the 400-satellite level, and then significant operational capability is around 800-satellite level, and thereafter, it's about adding more and more satellites and more orbital planes of satellites as we get more usage of the system and we get bandwidth constrained," Musk said. "One does not need anywhere near 10,000 satellites to be effective. ... We'll start selling service initial around the 400th satellite launch and then make sure our production and launch of satellites stays ahead of user demand."

If there's demand, SpaceX could scale up the network to reach the 12,000-satellite threshold.

After the first Starlink launch, SpaceX plans between two and six additional Starlink missions later this year to begin building out the first phase of the network in orbit 341 miles above Earth, according to Gwynne Shotwell, SpaceX's president and chief operating officer.

SpaceX debuted a new Starlink website soon after Thursday night's launch. According to the website, the Starlink system will provide broadband service over the latitudes of the northern United States and Canada after six additional launches. After 24 launches, the network should cover the populated world.

Musk said the user terminal consumers will use to connect with the Starlink network is a flat antenna — about the size of a small or medium pizza — that is relatively simple to se t up. He did not say how much the user terminal will cost, or disclose the expected price of a subscription to Starlink's broadband service.

In addition to consumer-scale broadband, the Starlink network could help large telecom operators in rural areas. Airplanes and ships are also prime markets for Starlink.

"We think this could be really helpful to telcos (telecom operators) by providing connectivity that they need for the most difficult to serve customers, as well as providing data backhaul services so that a telco could put down a 5G cell tower somewh ere instead of digging a fiber trench over potentially hundreds of miles," Musk said. "That 5G cell tower could do data backhaul through our satellite system."

Musk said SpaceX has enough money to get the privately-funded Starlink system operational. A filing with the Securities and Exchange Commission last month showed SpaceX had raised $44 million in a $400 million fundraising round, and a filing in January showed SpaceX had raised $273 million of a planned $500 million in an earlier round.

But Musk told reporters last week that SpaceX's funding rounds have been "oversubscribed," and suggested the information contained in the regulatory filings was "out-of-date."

"This is obviously a multibillion-dollar endeavor," Musk said. "So we've got the cash flow that we generate from our normal launch operations, launching commercial satellites and launching Dragon to the space station, that kind of thing, as well as capital that we have raised. At this point, it looks like we have sufficient capital to get to an operational level, but of course, if things go wrong and there are unexpected issues, we will need to raise more capital in that situation."

Tim Farrar, a satellite and telecommunications industry consultant, said the first launches for the SpaceX and OneWeb broadband networks puts pressure on other players.

"We're going to be involved in a race between SpaceX and OneWeb to launch as many satellites as possible," Farrar said in an interview with Spaceflight Now before the Starlink launch. "It sort of limits the opportunities for other constellations like Telesat to find partners and raise money, unless they're going find some deal with Jeff Bezos and Amazon.

"OneWeb was talking ... about launching as many 100 satellites by the end of this year or early next year. SpaceX is talking about having multiple additional launches over the next six to 12 months," said Farrar, president of TMF Associates, a consulting firm in Menlo Park, California. "At that point you do have a question ... Is there room for another player that's going to take a couple of years before they can even launch any more satellites?"

For Musk, the Starlink system is not only a business opportunity. It could also offer a potential revenue stream for SpaceX to pay for costly rocket development projects, such as the company's Starship and Super Heavy vehicles, which Musk envisions as a reusable multi-purpose vehicle for huge satellite launches and interplanetary voyages with cargo and people.

"We see this as a way for SpaceX to generate revenue that can be used to develop more and more advanced rockets and spaceships, and we think this is a key stepping stone on the way toward establishing a self-sustaining on Mars and a base on the moon," Musk said. "We believe we can use the revenue from Starlink to fund Starship."
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