Connect with us

(14 December 2020 – Thales) In the UK Thales Alenia Space has been selected by the European Space Agency (ESA) to lead one of two parallel studies for the Comet Interceptor mission.

The Comet Interceptor mission consists of one spacecraft and two small probes. It was selected by ESA in June 2019 to combine breakthrough technology in new comet discoveries to reveal information about pristine comets entering the inner Solar System or an interstellar object passing through the Solar System. The scientific mission was originally proposed by an international team led by UK academics from University College London and the University of Edinburgh, among others.

Comet Interceptor (courtesy: Thales Alenia Space)

The three elements of the mission are a mothercraft, provided and operated by ESA and two small probes, (B1) provided by the Japanese Space Agency JAXA and (B2) by ESA, carried as payloads aboard the mothercraft.

The mission will launch in 2028 and wait in orbit for a suitable target; the composite spacecraft will travel together before the three modules separate a few days prior to intercepting the comet. Each module will be equipped with science instruments, providing different perspectives of the comet’s nucleus and its gas, dust, and plasma environment. Such ‘multi-point’ measurements will greatly improve the 3D information needed to understand the dynamic nature of a pristine comet while it is interacting with the constantly changing solar wind environment.

The mission’s instruments will be provided by consortia of research institutes and will draw on heritage from previous ESA missions such as Giotto and the currently flying ExoMars Trace Gas Orbiter with its dust, fields and plasma instruments, as well as a mass spectrometer, like those that flew on Rosetta.

During the study phase, Thales Alenia Space in the UK will be responsible for the spacecraft design as well as the preparation for the development phase that encompass the Assembly Integration and Test of the space segment, the support for launch operations and commissioning in orbit. In order to secure the science of the mission, Thales Alenia Space in the UK will lead an international consortium composed of world class partners in critical areas for COMET-I. This team will include Thales Alenia Space in Italy and France for their unrivalled experience in Sun-Earth Lagrange2 mission, Thales Alenia Space in Spain for the Communications sub-system, and GMV for the sophisticated Guidance, Navigation & Control sub-system.

Science Minister Amanda Solloway said “The UK’s space industry is thriving and this out-of-this-world mission is testament to our world-leading expertise. I am very proud that scientists and engineers in Bristol and Harwell will be designing the Comet Interceptor spacecraft – their incredible work will not only further our understanding of the evolution of comets but help unlock the mysteries of the universe.”

Andrew Stanniland, CEO of Thales Alenia Space in the UK commented “I am delighted ESA has once again placed its trust in our scientists and engineers at Thales Alenia Space in the UK who have excellent heritage from previous scientific missions such as Giotto and Rosetta. We all look forward to supporting this exciting and unprecedented scientific mission to uncover more information about the origins of our Universe.”

Comet Interceptor

Comet Interceptor has been selected by ESA’s Science Programme as a Fast track mission in its Cosmic Vision Programme for a nominal launch in 2028, on a shared Ariane 6.2 flight, with the ESA mission ARIEL. The ‘Fast’ refers to the implementation time, with a total development duration from selection to launch readiness of about eight years. F-class missions, which have a launch mass of less than 1000 kg, will share the ride into space with a medium-class mission, taking advantage of additional space in the launcher and the boost to the Sun-Earth Lagrange point L2, which is 1.5 million kilometers ‘behind’ Earth as viewed from the Sun.

About Thales Alenia Space

Drawing on over 40 years of experience and a unique combination of skills, expertise and cultures, Thales Alenia Space delivers cost-effective solutions for telecommunications, navigation, Earth observation, environmental management, exploration, science and orbital infrastructures. Governments and private industry alike count on Thales Alenia Space to design satellite-based systems that provide anytime, anywhere connections and positioning, monitor our planet, enhance management of its resources, and explore our Solar System and beyond. Thales Alenia Space sees space as a new horizon, helping to build a better, more sustainable life on Earth. A joint venture between Thales (67%) and Leonardo (33%), Thales Alenia Space also teams up with Telespazio to form the parent companies’ Space Alliance, which offers a complete range of services. Thales Alenia Space posted consolidated revenues of approximately 2.15 billion euros in 2019 and has around 7,700 employees in nine countries.

Source link

0

Space

NASA’s Deep Space Network welcomes a new dish to the family

NASAs Deep Space Network welcomes a new dish to the

(22 January 2021 – JPL) A powerful new antenna has been added to the NASA Space Communications and Navigation’s Deep Space Network (DSN), which connects us to the space robots exploring our solar system.

Called Deep Space Station 56, or DSS-56, the dish is now online and ready to communicate with a variety of missions, including NASA’s Perseverance rover when it lands on the Red Planet next month.

The new 34-meter-wide (112-foot-wide) dish has been under construction at the Madrid Deep Space Communications Complex in Spain since 2017. Existing antennas are limited in the frequency bands they can receive and transmit, often restricting them to communicating only with specific spacecraft. DSS-56 is the first to use the Deep Space Network’s full range of communication frequencies as soon as it went online. This means DSS-56 is an “all-in-one” antenna that can communicate with all the missions that the DSN supports and can be used as a backup for any of the Madrid complex’s other antennas.

Deep Space Station 56 (DSS-56) (courtesy: NASA/JPL-Caltech)

“DSS-56 offers the Deep Space Network additional real-time flexibility and reliability,” said Badri Younes, deputy associate administrator and program manager of NASA’s Space Communications and Navigation (SCaN). “This new asset symbolizes and underscores our ongoing support for more than 30 deep space missions who count on our services to enable their success.”

With the addition of DSS-56 and other 34-meter antennas to all three DSN complexes around the world, the network is preparing to play a critical role in ensuring communication and navigation support for upcoming Moon and Mars missions and the crewed Artemis missions.

“The Deep Space Network is vital to so much of what we do – and to what we plan to do – throughout the solar system. It’s what connects us here on Earth to our distant robotic explorers, and, with the improvements that we’re making to the network, it connects us to the future as well, expanding our capabilities as we prepare human missions for the Moon and beyond,” said Thomas Zurbuchen, associate administrator of the Science Mission Directorate at NASA’s headquarters in Washington. “This latest antenna was built as an international partnership and will ultimately benefit all of humanity as we continue to explore deep space.”

With DSS-56’s increased flexibility came a more complex start-up phase, which included testing and calibration of a larger suite of systems, before the antenna could go online. On Friday, Jan. 22, the international partners who oversaw the antenna’s construction attended a virtual ribbon-cutting event to officially mark the occasion – an event that had been delayed due to historic snowfall blanketing much of Spain.

“After the lengthy process of commissioning, the DSN’s most capable 34-meter antenna is now talking with our spacecraft,” said Bradford Arnold, DSN project manager at NASA’s Jet Propulsion Laboratory in Southern California. “Even though pandemic restrictions and the recent weather conditions in Spain have been significant challenges, the staff in Madrid persevered, and I am proud to welcome DSS-56 to the global DSN family.”

More About the Deep Space Network

In addition to Spain, the Deep Space Network has ground stations in California (Goldstone) and Australia (Canberra). This configuration allows mission controllers to communicate with spacecraft throughout the solar system at all times during Earth’s rotation.

The forerunner to the DSN was established in January 1958 when JPL was contracted by the U.S. Army to deploy portable radio tracking stations in California, Nigeria, and Singapore to receive telemetry of the first successful U.S. satellite, Explorer 1. Shortly after JPL was transferred to NASA on Dec. 3, 1958, the newly-formed U.S. civilian space program established the Deep Space Network to communicate with all deep space missions. It has been in continuous operation since 1963 and remains the backbone of deep space communications for NASA and international missions, supporting historic events such as the Apollo Moon landings and checking in on our interstellar explorers, Voyager 1 and 2.

The Deep Space Network is managed by JPL for SCaN, which is located at NASA’s headquarters within the Human Exploration and Operations Mission Directorate. The Madrid station is managed on NASA’s behalf by Spain’s national research organization, Instituto Nacional de Técnica Aeroespacial (National Institute of Aerospace Technology).

Source link

0
Continue Reading

Space

Iodine thruster could slow space junk accumulation

Iodine thruster could slow space junk accumulation

(22 January 2021 – ESA) For the first time ever, a telecommunications satellite has used an iodine propellant to change its orbit around Earth.

The small but potentially disruptive innovation could help to clear the skies of space junk, by enabling tiny satellites to self-destruct cheaply and easily at the end of their missions, by steering themselves into the atmosphere where they would burn up.

Iodine thruster used to change the orbit of a small satellite for the first time ever (courtesy: ThrustMe)

The technology could also be used to boost the mission lifetime of small CubeSats that monitor agricultural crops on Earth or entire mega-constellations of nanosats that provide global internet access, by raising their orbits when they begin to drift towards the planet.

The technology was developed by ThrustMe, a spin-off company from the École Polytechnique and the French National Centre for Scientific Research (CNRS), and supported by ESA through its programme of Advanced Research in Telecommunications Systems (ARTES).

It uses a novel propellant – iodine – in an electric thruster that controls the satellite’s height above Earth. Iodine is less expensive and uses simpler technologies than traditional propellants.

Unlike many traditional propellants, iodine is non-toxic and it is solid at room temperature and pressure. This makes it easier and cheaper to handle on Earth.

When heated, it turns to gas without going through a liquid phase, which makes it ideal for a simple propulsion system. It is also denser than traditional propellants, so it occupies smaller volumes onboard the satellite.

ThrustMe launched its iodine thruster on a commercial research nanosat called SpaceTy Beihangkongshi-1 that went into space in November 2020. It was test fired earlier this month before being used to change the orbit of the satellite.

Source link

0
Continue Reading

Space

Skynet 6A successfully passes Preliminary Design Review

Skynet 6A successfully passes Preliminary Design Review

(14 Janaury 2021 – Airbus) Airbus has successfully completed the first key phase of the Skynet 6A project with the achievement of the Preliminary Design Review (PDR).

The project now has permission to move into the next phase leading to the Critical Design Review (CDR).

Airbus was awarded the Skynet 6A contract in July 2020 and teams across its sites in Stevenage, Portsmouth and Hawthorn have been working on the programme to achieve this key milestone. Meetings with the UK Ministry of Defence (MOD) were held virtually enabling the review board to take place in October and the PDR being achieved in November.

Skynet 6A (courtesy: Airbus)

Richard Franklin, Managing Director of Airbus Defence and Space UK said: “This is excellent news and demonstrates our joint commitment to work in partnership to achieve the programme schedule. The progress we are making in building the UK MOD’s next generation military satellite and getting to this stage, despite current restrictions, really highlights the flexible and strong working relationship we have built with the Defence Digital team. Skynet 6A, to be built entirely in the UK, will significantly enhance the UK’s milsatcoms capability, building on the heritage of the four Skynet 5 satellites which were also built by Airbus, and which are all still operating perfectly in orbit.”

Teams from across the space and ground segments in Airbus worked closely with their MOD counterparts to keep the programme on track.

Skynet 6A will extend and enhance the Skynet fleet. The contract signed with the UK MOD in July 2020 involves the development, manufacture, cyber protection, assembly, integration, test and launch, of a military communications satellite, Skynet 6A, planned for launch in 2025. The contract also covers technology development programmes, new secure telemetry, tracking and command systems, launch, in-orbit testing and ground segment updates to the current Skynet 5 system. The value of the contract is more than £500 million.

The Skynet 5 programme, provided by Airbus as a full service outsource contract, has provided the UK MOD with a suite of highly robust, reliable and secure military communications services, supporting global operations since 2003. Airbus has been involved in all Skynet phases since 1974 and this phase builds on a strong UK commitment to space manufacturing in the UK. The programme commenced by using the legacy Skynet 4 satellites and then augmenting them with a fully refurbished ground network before launching the Skynet 5A, 5B, 5C and 5D satellites between 2007 and 2012.

The Skynet 5 programme has reduced or removed many of the technical and service risks for the MOD, whilst ensuring unrivalled secure satcoms and innovation to UK forces. Through the many years of delivering an exceptionally reliable Skynet service the Airbus teams have managed to significantly extend the lifespan of the Skynet satellites many years beyond their design life, offering significant additional value for money and capability to the UK.

The Skynet 6A satellite is based on Airbus’ Eurostar Neo telecommunications satellite platform. It will utilise more of the radio frequency spectrum available for satellite communications and the latest digital processing to provide both more capacity and greater versatility than Skynet 5 satellites. The satellite will feature electric orbit raising propulsion as well as electric station keeping systems for maximum cost effectiveness. Complete satellite integration will take place at Airbus facilities in the UK followed by testing using RAL Space testing facilities at Harwell in Oxfordshire supporting the UK Space Agency initiative for sovereign UK end-to-end satellite production and support.

Source link

0
Continue Reading

Trending