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Category: satellites – Page 141

These space surveillance satellites just got an upgrade

According to SOPS, this was one of the most significant upgrades to the system since it became operational in 2015. The ground system upgrade will also be important as the Space Force expands the constellation later this year, said 1st SOPS engineer Capt. Zachary Funke.

The first two satellites in the constellation launched in 2014, with two more satellites joining them on orbit in 2016. The Space Force is slated to launch the fifth and sixth GSSAP satellites in the fourth quarter of 2020 aboard an Atlas V rocket.

Operating near the geosynchronous belt, the four GSSAP satellites can provide data on other man-made objects in space without being interrupted by the weather or atmospheric conditions that impact ground-based space situational awareness systems. GSSAP satellites can also perform rendezvous and proximity operations, approaching other space vehicles to provide attribution or enhanced surveillance on objects of interest to United States Space Command.

SpaceX readying for Sunday’s sixth Starlink launch, first fifth booster flight

SpaceX is preparing its Falcon 9 to launch the Starlink V1.0 L5 mission, although the launch date has been moved to Sunday. This mission will be the first Starlink launch from LC-39A at Kennedy Space Center, and the first from the pad since the Crew Dragon In-Flight Abort Test in January 2020. The first stage is B1048.5 – marking the first time a Falcon 9 core flies for the fifth time. The launch is now scheduled for 9:22 AM Eastern on March 15.

Lead Image by Mike Deep Starlink launch:

This mission will launch the 5th batch of 60 fully-operational Starlink satellites – the sixth batch overall – to a Low Earth Orbit (LEO). This will also be the first Starlink launch from the historic Launch Complex 39A (LC-39A) at Kennedy Space Center. Previous Starlink missions launched from Space Launch Complex 40 (SLC-40), just over three miles south of LC-39A.

New Antenna Will Boost UAV Communication with Satellites

A group of Chinese researchers has developed a compact, sabre-like antenna for unmanned aerial vehicles (UAVs) that can switch between two radiation patterns for better communication coverage. They describe their work in a study published 26 February in IEEE Transactions on Antennas and Propagation.

For UAVs cruising at high speeds, it’s desirable to have small, aerodynamic antennas that limit drag but can still yield sufficient bandwidth and coverage. Zhijun Zhang, a researcher at Tsinghua University, notes that sabre-shaped antennas are beneficial in the sense that they are very aerodynamic—but there is a major limitation that comes with this design.

“Conventional sabre-like antennas generate a donut-shape radiation pattern, which provides an omnidirectional coverage and is ideal for air-to-ground communication. However, a donut-shape pattern has a null at its zenith,” Zhang explains.

Satellite operators hint at fear of SpaceX, Blue Origin becoming competitors

WASHINGTON — Two of the world’s largest geostationary satellite fleet operators said March 10 that launch providers who compete with them by deploying their own constellations could influence their choice of rockets.

Executives from SES and Eutelsat at the Satellite 2020 conference here said they are watching as SpaceX deploys its own Starlink constellation of broadband satellites, which could make SpaceX one of their competitors.

Blue Origin could also become a competitor if it launches Amazon’s Kuiper broadband constellation, according to Eutelsat Deputy CEO Michel Azibert and Hughes President Pradman Kaul, since Jeff Bezos owns both Amazon and Blue Origin.

DARPA teams with Northrop Grumman to build robotic service satellite

DARPA has entered into a partnership with Northrop Grumman subsidiary Space Logistics LLC to develop robotic technologies for servicing and extending the service lives of orbital satellites. Based on the Mission Extension Vehicle-1 (MEV-1), which recently docked with a communication satellite in geosynchronous orbit, the technology will be used by the agency’s Robotic Servicing of Geosynchronous Satellites (RSGS) program to develop a dexterous robotic servicer that would be operated by private companies.

Founded in 2016, the RSGS program completed a Payload Critical Design Review in 2019 and is developing key technologies in the run up to the first space launch scheduled for 2023. As part of this effort, DARPA says it is funding the US Naval Research Laboratory (NRL) to bring together components like the robotic manipulator arms, a variety of interchangeable tools, cameras, sensors, software, and avionics into a functioning robotic payload.

Meanwhile, Space Logistics will provide the spacecraft bus based on the MEV and integrate the robotic payload, as well as providing launch and orbital operation services. Once the spacecraft has been checked out and demonstrated its capabilities, the technology will be marketed to commercial and government organizations.

Kepler’s decision to build its own cubesats surprises manufacturers

That’s no longer the case. Blue Canyon Technologies, AAC Clyde Space, GomSpace, NanoAvionics, Tyvak and several others are ready and willing to build cubesats en masse. So it came as a surprise to many cubesat manufacturers when Kepler Communications announced plans in January to manufacture its constellation of 140 Internet of Things satellites in-house.

Kepler is poised to become one of the world’s largest cubesat operators once its constellation is fully in orbit, a target set for the end of 2022. Only Planet currently operates a fleet that large.

Instead of formally soliciting bids from a wide range of cubesat builders, though, Toronto-based Kepler turned to the University of Toronto Institute for Aerospace Space Flight Laboratory (SFL) for help setting up its own manufacturing line. Kepler also received 1 million Canadian dollars ($760,000) from the Canadian Space Agency to mature its bus design and production techniques, leading some observers to conclude national pride could play a role. Through Kepler, Canada is establishing a robust cubesat manufacturing capability.

Rocket issue delays launch of UAE’s Falcon Eye 2 satellite for a month: report

A sharp-eyed satellite’s launch has been pushed back from its expected Thursday (March 5) launch date until no earlier than April due to a rocket problem, according to a media report.

Arianespace, which will be providing the launch from French Guiana, has not disclosed a reason for the delay. Nor did it release a new launch date for Falcon Eye 2, which is a high-performance optical observation satellite for commercial and military users in the United Arab Emirates.

China’s largest private automaker is building a satellite network now, too

The largest private automaker in China is getting into the satellite business. Chinese automotive giant Geely has broadened its reach to include everything from trucking, to high-speed trains, to passenger drones, to Volvo over the last decade or so. But its newest effort could tie those things all together, as Geely just announced it’s going to build its own satellite network to enable what it calls a “smart three-dimensional mobility ecosystem.”

Geely announced late Monday that it will erect a satellite production facility and testing center in the port city of Taizhou in the Zhejiang province that the Chinese giant calls home. The facility will be capable of building a “variety of different satellite models,” some of which may be for non-Geely entities.

Geely says it will start launching the satellite network as soon as the end of this year, but did not say how big it will be. Reuters reports that the company is pumping around $326 million into the project, and will eventually make 500 satellites a year.

Blue Origin shows off the finished massive nose cone for its future New Glenn rocket

Jeff Bezos’ aerospace company Blue Origin has completed the first nose cone of its future orbital rocket, the New Glenn — and new video of the hardware shows the true enormity of this piece of equipment. With a diameter of 7 meters, or 22 feet, the cavernous nose cone is so giant that it can completely house Blue Origin’s smaller New Shepard rocket.

The nose cone, or payload fairing, is a crucial piece of any rocket heading to space. It sits on top of the vehicle and surrounds whatever payload or satellite the rocket is carrying, acting as a shield during the ascent through the atmosphere. Once in space, the payload breaks away and exposes the satellite so that the payload can be deployed by the rocket.

The size of a rocket’s fairing is also key because it dictates which kinds of satellites can fit on top of a rocket. If the fairing is too small, for instance, larger satellites and modules won’t be able to fly. This limiting factor has led to an industry phrase known as the “tyranny of the fairing,” as the nose cone often prohibits the ability to fly massive payloads into orbit.