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Category: satellites – Page 114

Evasive Maneuvers

In order to broadcast the 4G and eventually 5G signals, the satellites would come equipped with massive antennas up to 900 square meters in size. Given their planned proximity to other satellites, NASA says that’s a disaster waiting to happen.

“For the completed constellation of 243 satellites, one can expect 1,500 mitigation actions per year and perhaps 15,000 planning activities,” reads NASA’s statement. “This would equate to four maneuvers and 40 active planning activities on any given day.”

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SpaceX’s Starlink satellite cluster has been receiving much headline space recently as it continues adding satellites at a breathtaking pace. Much of this news coverage has focused on how it’s impacting amateur skygazers and how it could benefit people in far-flung regions. But technical details do matter, and over on Casey Handmer’s blog, there was a recent discussion of one of the most important aspects of how Starlink actually operates—what will it do with its data?

In networking lingo, data is quantized into “packets,” which are sets of ones and zeros that computers can understand. In the case of Starlink, these packets will bounce between and a series of satellites parked in nine separate low-Earth orbits. Each orbit will contain a number of satellites, and each satellite’s covered territory will overlap with the satellites to the north and south of it. When the constellation is complete, every spot on Earth will be covered by at least two Starlink satellites.

Future versions of the satellites will use lasers to communicate amongst themselves. But for now, they have to use ground stations to talk to other satellites. Therefore, there will be a great amount of packet passing between satellites, ground stations and end user terminals. The information that describes such a convoluted path for each packet must be stored somewhere. That somewhere is called the “metadata.”

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A few days ago, SpaceX started to offer Starlink satellite broadband internet service in areas located in the northern United States and southern Canada. With approximately 888 internet-beaming satellites in orbit the Starlink network is capable of providing ‘moderate’ broadband coverage. Early Starlink customers have shared photographs via social media of the Starlink Kit that is utilized to receive internet connection from the satellites in space. The Starlink Kit includes: “Dishy McFlatface” which is a 19-inch dish phased-array antenna, a mounting tripod for the dish, and an oddly-shaped Wi-Fi router device, pictured below.

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IEEE RAS CUI Wah SB presents a webinar titled “Lower Earth Orbit High Throughput Satellites Mega-Constellations” and the speaker of this Webinar is “Engr. Muhammad Furqan” Researcher, Queensland University of Technology, Brisbane Australia, Former Satellite Communication Specialist, Ministry of Defense, Qatar and Former Senior Executive VSAT/DVB Wateen Telecom Pakistan.

For future events stay tuned with us by visiting our social media platforms.

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SpaceX is preparing to conduct a national security mission for the United States Space Force. The aerospace company is tasked to deploy the military’s fourth new-generation series Global Positioning System satellite, known as GPS-III Space Vehicle 04. On October 2nd, SpaceX attempted to launch the satellite to orbit but at around two seconds before the 9:43 p.m. EDT liftoff time, launch controllers aborted the launch at Cape Canaveral Air Force Station’s Launch Complex 40.

During the Live broadcast of the launch attempt the Principal Integration Engineer at SpaceX John Insprucker said the next launch opportunity for this mission is on Saturday, October 3rd at 9:39 p.m. EDT. but the rocket did not attempt a second launch because SpaceX found issues on one of the Falcon 9 rocket’s nine Merlin 1D engines. According to SpaceX founder and Chief Executive Officer Elon Musk, the Falcon 9 rocket carrying the GPS-III satellite experienced an “unexpected pressure rise in the turbomachinery gas generator,” he wrote. “… We’re doing a broad review of launch site, propulsion, structures, avionics, range & regulatory constraints this weekend. I will also be at the Cape next week to review hardware in person,” he said early October.

SpaceX’s Vice President of build and flight reliability, Hans Koenigsmann, said during a news conference on October 28th that SpaceX engineers worked alongside the U.S. Space Force and NASA to perform a deep investigation into the issue. They came to the conclusion that the Falcon 9 engine issue was due to a residue of a “masking lacquer” designed to protect sensitive parts during anti-corrosion anodizing treatment. Koenigsmann told reporters the SpaceX vendor that performed the lacquer coating treatment failed to remove all of the lacquer afterward, causing a blockage of small vent holes for Merlin engine valves. “It’s not necessarily bad,” he said, “In most cases, it rattles the engine, and it may cause a little bit of damage to the engine. In extreme cases, it may cause more damage to the engine.” SpaceX officials announced they would fix the issue by replacing the engine. Now, SpaceX targets to deploy GPS-III Space Vehicle 04 satellite atop the Falcon 9 no earlier than Thursday, November 5th at 6:24 p.m. EDT [date is subject to change]. This mission is important for the United States because the GPS-III satellite is designed to upgrade the satellite constellation that actively provides navigation services to over 4 billion users.

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This is interesting. So Mars won’t be under earth-based laws?

Interesting… 😃

SpaceX’s Elon Musk has revealed that they will not abide by international law on Mars.

Instead, the company plans to define its own set of ‘self-governing principles’ for the first Martian settlement.

Continue reading “Elon Musk’s SpaceX Will Make Its Own Laws On Mars” | >

SpaceX is ready to offer Starlink internet in northern United States and southern Canada. The company currently operates approximately 888 internet-beaming satellites in low Earth orbit. SpaceX plans to deploy thousands of satellites to provide broadband coverage globally by 2021. To track the satellites in orbit SpaceX signed a deal with LeoLabs, the company announced the partnership today October 27. —“LeoLabs is pleased to announce a commercial agreement with SpaceX to support tracking of Starlink satellites during the initial on-orbit phase of missions,” LeoLabs representatives wrote in a press release. “Under this partnership, SpaceX utilizes LeoLabs Launch and Early Orbit service to track all Starlink satellites beginning immediately after deployment, providing SpaceX with rapid orbital location and identification support during the first few days of new missions.”

SpaceX and LeoLabs have been working together since March this year. Through LeoLabs’ advanced tracking system, SpaceX obtains detailed data rapidly about where each Starlink satellite is located in space. LeoLabs states it delivers data within 1-hour after a Starlink satellite passes over one of its radar stations on Earth.

“LeoLabs is excited to work with SpaceX as they launch the world’s largest constellation of satellites to provide global broadband internet access,” the Chief Executive Officer at LeoLabs Dan Ceperley wrote in a statement released by the company. “Our global radar network and software platform allow LeoLabs to acquire an entire batch of Starlink satellites faster than any other organization in the world and provides SpaceX with a level of certainty that was previously not available,” he added.

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SpaceX staff and members of the media have been inundated this morning with emails ostensibly from concerned Armenians around the world, asking the company to cancel a launch contract with the Turkish government. The concerns are valid — and the mass-email method surprisingly effective.

In the form email, received by TechCrunch staff hundreds of times in duplicate and with minor variations, the senders explain that they represent or stand in solidarity with Armenians worldwide, an ethnic and national group that has suffered under the authoritarian rule and regional influence of Turkey’s President, Tayyip Erdogan.

SpaceX is slated to launch the Turkish satellite Turksat-5A in the next month or two, a geostationary communications satellite built by Airbus that will serve a large area of Europe, Asia, and the Middle East. The deal has been on the books for a long time, and SpaceX CEO and founder Elon Musk even traveled to Turkey to meet with Erdogan regarding the satellite in 2017.

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