SpaceX applied for the launch of 4,425 communications satellites over the total since the birth of mankind
SpaceX, the space carrier founded by technology entrepreneur Elon Musk, has a dream to provide high-speed Internet access worldwide via satellite. Recently, SpaceX has taken a big step towards this goal. On November 15, it submitted an application to the US Federal Communications Commission (FCC) to launch a total of 4,425 communications satellites. According to statistics from the Union of Concerned ScienTIsts, there are currently 1,419 active satellites orbiting the Earth. It is estimated that more than 2,600 satellites are no longer working, just floating in space, plus this part. For satellites that have been retired, the total number of satellites that humans have launched is about 4,025. In other words, the number of communications satellites SpaceX plans to launch will exceed the total number of satellites that humans have launched. Among the communications satellites that humans have launched, the largest is about a few tons, and the specification is about one bus. The fixed point of its orbit is about 22,000 miles (about 35,000 kilometers) from the Earth. However, from the application submitted by SpaceX, the satellite it intends to launch is not the same as the ordinary communication satellite. The communications satellite that SpaceX plans to launch weighs about 386 kilograms and is the equivalent of a mini Cooper. Their orbital fixed points are approximately 715 miles (1150 km) to 790 miles (1275 km) from the Earth. According to SpaceX, according to the orbital height calculation, each satellite can cover an elliptical area with a width of 1,300 miles (about 2,120 kilometers), which is about the size of Rhode Island. SpaceX wrote in the application: "This system will be used primarily to provide a variety of broadband and communication services to individual users, business users, institutional users, government and professional users worldwide." SpaceX's satellite launch program is divided into two steps, first launching 1600 satellites at an orbital altitude, then launching 2,825 satellites and placing them in four shells at different orbital heights. SpaceX wrote: "After the first 800 satellites, SpaceX will provide broadband services across the United States and around the world. Once thoroughly optimized by Final Deployment, the system will serve consumers and business users across the United States and around the world. Provide high bandwidth (up to 1Gbps per user), low latency broadband service." If you provide 1 Gbps of bandwidth to every user in the world, the total bandwidth of the service will be astonishing. According to the "Internet Status" report released by Akamai, as of the end of 2015, the average speed of the global Internet is 5.1 Mbps per user, which is about 200 times slower than the target set by SpaceX. Now most Internet speeds with higher speeds are connected. It is realized by fiber optic cable and fiber optic connection. SpaceX also stated in the legal statement of the application it submitted that according to a report released by the UNESCO Commission on Broadband Sustainability in July 2016, there are still 4.2 billion people worldwide (about the world total). 57% of the population) are offline for a variety of reasons. The most common reason is that they do not have access to the Internet or are unable to afford the Internet. Letting the entire planet be surrounded by the Internet is the only way to get these people online. SpaceX gives the following details in the file: High capacity: Each satellite in the SpaceX satellite system can provide users with a downlink capacity sum between 17Gbps and 23Gbps, depending on the user terminal configuration. Calculated at an average of 20 Gbps, 1600 satellites in the first phase of deployment (IniTIal Deployment) will be able to provide a total capacity of 32 Tbps. The entire system has been deployed for several years, and SpaceX will periodically improve and upgrade satellites during the deployment process, potentially increasing the total capacity of individual satellites and the entire satellite system. High adaptability: The entire system can use phased array technology to dynamically control the resource pool, focusing on users who need capacity. Satellites are interconnected at the speed of light, which makes it easy to plan data streams at the orbital level. Moreover, satellite clustering ensures that the spectrum can be reused more efficiently by different satellites, enhancing the flexibility, capacity and robustness of the entire system. Broadband service: The system can provide up to 1Gbps of broadband service per user. Since the system uses low-orbit satellites, the delay can be controlled between 25ms and 35ms. · Global coverage: After the first 800 satellites are deployed, the system can provide broadband networking services for the United States and the world. After the entire system is deployed, the system can further increase capacity and cover the equator and poles to achieve true global coverage. . Low cost: SpaceX considered cost efficiency and reliability when designing this system. From designing and manufacturing a variety of equipment in space and ground, to the use of SpaceX's launch services to launch satellites and deploy the entire system, to deploy user terminals and end-user fees, SpaceX takes into account cost factors and service reliability. . ·Ease of use: The phased array user antenna design used by SpaceX has low requirements on the terminals used by users. These terminals are easy to install on walls or roofs and are easy to operate. • These satellites can operate for five to seven years and then quickly deplete within one year of retirement. Musk first proposed the project in January 2015, and then submitted an application to the Federal Communications Commission to test the basic technology to support the project. According to an article published in the June 2015 issue of the Washington Post, Musk said the project will rebuild the Internet in space. The article also pointed out that Google (microblogging) and Fidelity invested $1 billion in Musk's company to support the project, so we naturally believe that once the satellite network is up and running, these companies may gain partial control. . Google’s parent company, Alphabet, is also working on this, and it is currently considering satellite, hot air balloons and drones to provide Internet access from the air. Two months ago, a SpaceX rocket exploded in a conventional launch pad test, and a $200 million AMOS-6 satellite carried by the rocket was blown up. Facebook originally intended to use this satellite to provide free Internet access to parts of Africa. BusinessInsider contacted SpaceX and would like to know more about the project, including the schedule and how the satellites were launched, but the SpaceX representative has not yet responded. NIMH Battery,Game Battery,Game Player Battery,NIMH Rechargeable Batteries Shenzhen Sunwind Energy Tech Co.,Ltd , https://www.sunwindbatterylm.com