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SpaceX can provide space Internet services with six launches.

via:博客园     time:2019/5/29 12:31:45     readed:161

orgsrc=//img2018.cnblogs.com/news/34358/201905/34358-20190529103836902-1931429029.jpgSatellite is opening solar panels

Tencent Technology News, May 29 news, according to foreign media reports, the US space exploration technology company SpaceX has created a new website, specifically to update its space Internet project "Star Chain" (Starlink) information, which is in A prelude to Internet service is provided to consumers only after six launches.

In addition, Starlink.com reiterated CEO Elon · Elon Musk's estimate that SpaceX will only carry out 2 to 6 dedicated "Star Chains" satellite launches in 2019, at least each time. Launched 60 satellites. In other words, the most ideal satellite deployment scenario might mean thatSpaceX will begin offering "Star Chain" services to consumers in the US North and Canada as early as this year.,And commercial services can be guaranteed to be launched in 2020.At this rate, SpaceX believes it will be able to cover all of the densely populated areas of the planet after 24 launches (approximately 1,500 satellites).

SpaceX quietly announced that its expected initial operational capability (IOC) indicates that the company's plan to provide communications services to consumers is as ambitious as its first launch of 60, 18.5 tons of “star chain” satellite launch program. Assuming that an average of 60 "Star Chains" satellites are launched each time, SpaceX hopes to start serving customers in the US and Canada as soon as 360 satellites enter the orbit. This milestone may occur as early as the end of 2019. It can be said that at some point in the first half of 2020, SpaceX is much more likely to provide services, but it can be provided only in 2019, which shows that SpaceX is a big step ahead of its competitors, and its competitors. It seems that only OneWeb can pose a real threat to it.

On February 27th, OneWeb launched the first batch of 6 satellites (originally planned to launch 10), and has carried out “incomplete launch” for 20 satellites for the first orbital test and the first run of the launch. . OneWeb's original space Internet will deploy 648 satellites, potentially rising to 900, and eventually reaching 2,000 in the next few years, which has attracted the interest of many investors. The company currently plans to launch about 20 Missile rockets a month before August or September 2019, and is likely to complete the first phase of its space Internet program sometime in 2021.

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OneWeb's outgoing partner, Tom · Tom Enders, said that OneWeb satellites cost $1 million each, and the two companies will be able to complete 350 to 400 satellites per year. Production, the joint venture's plant in Florida, will start in April and cost $85 million. Airbus spokesperson Guilhem Boltz said the first satellites made in Florida will be delivered to OneWeb by the end of the third quarter.

Assuming that SpaceX's goal is to launch every six to eight weeks, each time launching 60 satellites, by the end of 2020, the company could easily have more than 600 satellites in orbit. Compared to OneWeb, the weight of each "star chain" satellite has increased by about 40% (about 230 kilograms), but the available throughput is almost twice that of OneWeb. In short, SpaceX should be able to provide the same coverage and service capabilities as OneWeb, while space Internet such as Telesat, LeoSat, and Amazon's Project Kuiper may be the first satellite to launch. 5 years, not to mention providing services.

In addition to disclosing the tentative schedule of SpaceX's "Star Chain" service, Starlink.com also provides an excellent and surprisingly detailed satellite hardware rendering, from the star tracker left by the Dragonship to the world's first A flightable comet ion thruster. These renderings only confirm the fact that SpaceX has violated the essence of traditional satellite design in almost every turn, producing a bus (integral structure and shape factor) that is different from almost anything before it.

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SpaceX's first internally designed satellite bus is very elegant. Thanks to their unique flat profile, these satellites can be loaded into the fairing of the Falcon 9 rocket with great efficiency, making SpaceX's first dedicated “Star Chain” project launch a payload of more than 18.5 tons. In contrast, OneWeb plans to launch a satellite weighing approximately 4500 kilograms per Union. The rocket itself weighs approximately 1,000 kilograms and uses a conventional cylindrical adapter.

orgsrc=//img2018.cnblogs.com/news/34358/201905/34358-20190529103836964-1480872434.jpgIon engine on satellite

For the “Star Chain” project, the method used to securely connect 60 satellites is still a mystery, but through photos and renderings, no satellites have three metal rings/connectors connected. Regardless of how it works, SpaceX seems to have found a way to launch and deploy dozens of fairly large spacecraft, while virtually no payload is wasted on a dedicated dispenser. In general, SpaceX seems to have begun to surpass the technical capabilities of its competitors, while also taking great risks and making highly innovative, essentially unprecedented design choices. All of these features will help SpaceX deploy "Star Chain" as soon as possible and begin to serve customers. (Tencent Technology Review / Jinlu)

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