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29 novembre 2012 4 29 /11 /novembre /2012 18:35

http://en.rian.ru/images/17781/51/177815106.jpg

 

Nov 29, 2012 ASDNews (AFP)

 

South Korean space officials suspended a crucial rocket launch Thursday, after a technical problem halted the countdown just 17 minutes before the scheduled blast-off.

 

"It is impossible to resume the launch sequence today," Deputy Science Minister Cho Yul-Rae told reporters at the Naro Space Center on the south coast.

 

Cho declined to speculate on the duration of the delay, but officials said the rocket would have to be removed from the launch pad, suggesting it would be at least several days before a new attempt can be made.

 

It was to have been South Korea's third attempt to put a satellite in orbit and gain entry to an elite global space club that includes Asian powers China, India and Japan.

 

After successive failures with the same 140-tonne Korea Space Launch Vehicle (KSLV-1) in 2009 and 2010, the current mission is seen as crucial to the future of South Korea's space programme.

 

It was the second time this launch had been suspended.

 

Originally scheduled for October 26, it was delayed by more than a month after engineers detected a broken rubber seal in a connector between the launch pad and the first stage.

 

Cho said the problem this time around appeared to lie with the propulsion system of the rocket's second stage.

 

The KSLV-1 has a first stage manufactured by Russia and a solid-fuel second stage built by South Korea.

 

"It is very regrettable that people's expectations have not yet been met," Science Minister Lee Ju-Ho told reporters,

 

"We will thoroughly check the problem and we will spare no effort to make the launch a success this time," Lee said.

 

The official launch window is set to close on December 5, and Kim Seung-Jo, president of the Korea Aerospace Research Institute, said it was too early to say if another launch could be attempted in time.

 

A late entrant into the high-cost world of space technology and exploration, South Korea is desperate to get its commercial launch programme up and running.

 

Seoul's space ambitions were restricted for many years by its main military ally the United States, which feared that a robust missile or rocket programme would accelerate a regional arms race, especially with North Korea.

 

Japan and China both achieved their first satellite launches back in 1970, and India made its breakthrough in 1980. But the lack of US support contributed to South Korea, Asia's fourth largest economy, lagging behind.

 

Soon after joining the Missile Technology Control Regime in 2001, South Korea made Russia its main space partner.

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28 novembre 2012 3 28 /11 /novembre /2012 20:25

Pleiades.png

 

28 novembre 2012 TF1news

 

Après Pleiades 1A, c'est au tour de son jumeau, Pleiades 1B de décoller de Guyane pour rejoindre l'espace. Grâce à ces deux satellites, il sera désormais possible d'avoir des images, tous les jours, de n'importe quel point du globe.

 

Le satellite civil et militaire européen d'observation de la Terre Pléiades 1B doit être mis en orbite dans la nuit de vendredi à samedi par une fusée Soyouz lancée depuis le Centre spatial guyanais (CSG), selon les opérateurs de ce tir. Pour son quatrième lancement depuis la Guyane française, le mythique lanceur russe doit décoller vendredi 30 novembre à 23H02 heure locale (samedi à 03H02 heure de Paris) pour placer, 55 minutes plus tard, Pléiades 1B sur une orbite circulaire à quelque 700 km d'altitude, précise la société Arianespace.

 

Le satellite, d'une masse au décollage d'un peu moins d'une tonne, va rejoindre son jumeau, Pléiades 1A, placé en orbite par un autre Soyouz depuis près d'un an. C'est l'agence spatiale française, le Cnes, qui a confié à la société Astrium, filiale espace d'EADS, la construction des deux satellites d'observation de la Terre de très haute résolution, dont les instruments ont été conçus par Thales Alenia Space. Le positionnement des deux Pléiades à 180 degrés sur la même orbite permettra "une revisite quotidienne de tout point du globe", explique Astrium dans un communiqué. "Les zones de conflit, de crise ou de catastrophe naturelle seront visibles en quelques heures" ce qui permettra de planifier des opérations d'évacuation ou de secours, ajoute la société.

 

La revisite quotidienne offre en outre la possibilité de suivre l'activité de sites précis, industriels ou militaires, et de cartographier de vastes étendues avec plus de chance de produire des images sans nuages. La constellation Pléiades fournira des images sur 20 km de large aux ministères français et espagnol de la Défense, aux institutionnels civils et aux utilisateurs privés. Le ministère de la Défense français est un utilisateur privilégié des satellites, avec un droit de programmation prioritaire d'environ 50 images par jour. La société Astrium est le distributeur exclusif des produits issus de Pléiades sur le marché civil, précise Arianespace." En plus de leur grande précision, les satellites Pléiades se démarquent par leur remarquable agilité, autorisant des prises de vue autour de leur position dans différents modes (20 images sur un million de km2, mosaïque, corridor ou même 3D), indique Astrium. 

 

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28 novembre 2012 3 28 /11 /novembre /2012 18:10

http://www.safran-group.com/IMG/jpg/7a4b_Arianne.jpg

 

28.11.2012 Safran

 

Le 21 novembre 2012, la conférence de l’ESA a statué sur l’engagement du programme Ariane 6 et sur la poursuite du programme Ariane 5 ME. Jean-Lin Fournereaux, Directeur central Groupe, Espace, fait le point sur la participation de Safran aux deux successeurs du lanceur européen.

 

Comment analysez-vous la décision prise à l’issue du Conseil ministériel de l’Agence Spatiale Européenne ?

 

Le conseil ministériel des vingt Etats membres de l’Agence Spatiale Européenne (ESA), qui se déroulait à Naples les 20 et 21 novembre 2012, a permis à l’Europe spatiale de se doter d’un budget supérieur à 10 milliards d’euros pour les deux à cinq ans à venir en fonction des programmes. Plusieurs décisions concernant directement les activités de Safran ont été prises : l’engagement du programme Ariane 6 pour une entrée en service attendue en 2021-2022, la poursuite du programme Ariane 5 ME (« Midlife Evolution ») visant une évolution d’Ariane 5 à l’horizon 2017-2018, l’engagement d’un programme d’évolution du lanceur Vega couvrant la période 2013-2016 ainsi que la poursuite du programme d’accompagnement en exploitation des lanceurs. Ces décisions reprennent les grandes lignes de l’accord passé entre le Centre National d’Etudes Spatiales (CNES), Astrium (filiale d’EADS spécialisée dans les lanceurs et les satellites) et Safran, le 18 septembre dernier, et constituent un compromis satisfaisant pour le Groupe.

 

Quel impact ces décisions vont-elles avoir sur les activités spatiales de Safran ?


Sur Ariane 5 ME, Safran fournira le moteur cryotechnique* Vinci développé par Snecma sur le site de Vernon. Fruit de quinze années de recherche et développement, ce moteur ré-allumable permettra de propulser l’étage supérieur pour injecter la charge utile (deux satellites) sur son orbite de transfert géostationnaire. Concernant Ariane 6, la définition détaillée du lanceur doit être réalisée d’ici à 2014, dans la continuité des travaux menés jusqu’à présent. Toutefois, il a été décidé qu’un maximum de technologies présentes sur Ariane 5 ME devront pouvoir être réutilisées sur Ariane 6, en premier lieu le moteur Vinci développé par le Groupe. Pour Ariane 5 ME et Ariane 6, les prochaines étapes seront validées lors d’une prochaine conférence ministérielle qui se tiendra à la mi-2014. En outre, Safran continuera à fournir pour Ariane 5 ME de nombreux équipements déjà présents sur Ariane 5 : les boosters (ou étages d’accélération à propergol solide, qui fournissent l’essentiel de la poussée au décollage), le moteur cryotechnique Vulcain de l’étage principal des capteurs de pression nécessaires au guidage des lanceurs et des satellites, du câblage et des pyromécanismes utilisés pour la séparation des étages et le désacouplage des satellites et du lanceur.

 

*La propulsion cryotechnique utilise des ergols stockés à basse température (inférieures à -150°C).

 


Le domaine spatial Safran en chiffres

 

    Chiffre d’affaires annuel : 900 millions d’euros

    Effectifs de Safran travaillant dans ce domaine : 4 000 personnes

    Depuis le premier vol en 1979, Snecma a fabriqué 1 200 moteurs qui ont propulsé le lanceur Ariane

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27 novembre 2012 2 27 /11 /novembre /2012 18:50

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Nov 27, 2012 ASDNews Source : BAE Systems PLC

 

BAE Systems has received a series of contract modifications, worth more than $60 million, from the U.S. Air Force Space Command to continue supporting large radar and telescope systems that are used for missile warning and space surveillance missions.

 

The company provides a range of technical services, including round-the-clock operations and maintenance (O&M), to manage and sustain these critical assets.

 

The radar and telescope systems detect and identify various man-made objects in space, such as active or inactive satellites, rocket parts and other debris. The systems also track objects that may enter the atmosphere -  information that is vital to missile defense operations.

 

“This work is important for national security, communications and space research,” said Gordon Eldridge, vice president and general manager of Aerospace Solutions at BAE Systems. “Our record of success on these programs also demonstrates our strong capabilities in facilities management and O&M for critical U.S. infrastructure assets.”

 

The Solid State Phased Array Radar System (SSPARS) is a complex network of radars that tracks approximately 10,000 objects orbiting Earth. From five different locations, BAE Systems maintains the radars that make approximately 40,000 space observations each day. The program identifies and catalogs the objects, and helps prevent them from colliding with satellites and the International Space Station. The company has been supporting SSPARS since 2006 and recently received a $49 million contract extension for fiscal year 2013. This work is conducted at Cape Cod Air Force Station, Massachusetts; Beale Air Force Base, California; Clear Air Force Station, Alaska; Thule Air Base, Greenland; and Royal Air Force Fylingdales, United Kingdom.

 

The Perimeter Acquisition Radar Attack Characterization System (PARCS) is a similar radar located at Cavalier Air Force Station, North Dakota. It carries out many of the same missions as SSPARS. BAE Systems has been maintaining PARCS since 2003 and recently received a $7 million contract extension for fiscal year 2013.

 

The Ground-based Electro-optical Deep Space Surveillance System (GEODSS) is a network that uses powerful telescopes, low-light cameras and computers — instead of radars — to detect, track and report man-made objects in deep space. This program is primarily concerned with objects further from Earth, at about 3,000 miles and beyond. BAE Systems has been supporting GEODSS since 2009 and recently received a $5.5 million contract extension for fiscal year 2013. This work is conducted at Maui, Hawaii; Socorro, New Mexico; and the island of Diego Garcia.

 

All three of these contracts are issued by the 21st Space Wing, headquartered at Peterson Air Force Base in Colorado Springs, Colorado.

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27 novembre 2012 2 27 /11 /novembre /2012 17:40

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Nov 27, 2012 ASDNews Source : Astrium

 

Astrium has received an order to fit six UK Royal Navy mine countermeasure vessels with a military X-band satellite communications capability via the Skynet 5 constellation. This will be achieved by fitting Astrium Services’ latest milspec maritime satellite terminals. Known as Deployable Maritime Milsat (DMM), this project will allow vessels that were previously unable to use X-band satcom to take advantage of the extra protection and assurance that is provided by the Skynet 5 system. A further six vessels will be made ready to receive the same terminals at short notice should their future role require it.

 

To be delivered over five years, this programme will fit selected Royal Navy Mine Counter Measures Vessels with all of the satellite terminals and baseband equipment to allow them to fully integrate into Future Force Structure 2020. The satellite terminal that has been selected for this important programme is Astrium Services’ SCOTPatrol 0.8 meter terminal, which draws on the heritage of the highly successful SCOT 5 terminals that are fitted to the Royal Navy’s larger warships. This next generation naval satellite communications terminal is lighter and requires less maintenance, making it ideal for smaller ships. The terminal will be integrated with the Astrium Services Skynet 5 Satellite Ground Terminal architecture and will take advantage of a new IP based Global Interconnect Network that Astrium Services are rolling out.

 

Simon Kershaw, Executive Director Government Communications at Astrium Services said: “It is important that our Armed Forces have the most advanced capabilities possible and we are very pleased to be able to deliver this programme. It will enable these vessels to play a full part in future operations. This programme is the result of an excellent joint working initiative that has seen Astrium Services working closely with the Royal Navy to design, test and deliver this important capability in a very short time frame. It is an example of how close working relationships can develop and deliver the goods in a long term stable contract. The Skynet 5 programme is now ten years in and has become an example of how industry can work with the MOD in a service delivery programme.”

 

As the world’s first commercial provider of military communications services, Astrium Services already enables governments and the military to procure secure communications as and when required, primarily to the UK Ministry of Defence under the Skynet 5 contract, signed in October 2003. Skynet 5 provides the UK Armed Forces with satellite communications worldwide. The contract runs until 2022.

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27 novembre 2012 2 27 /11 /novembre /2012 13:10

http://gallery.astrium.eads.net/scripts/atlasweb.dll/eadsdb/WebImg_WebImage?xSession_Id=73vn6Rp.9NW_k&xExemplaire=14512

PLEIADES 1B in integration at Astrium Toulouse

Photo Astrium / D. Marques / 2012

 

27 November 2012 – astrium.eads.net

 

Astrium, Europe’s leading space technology company, is prime contractor for the Pléiades 1B satellite scheduled for take-off on 30 November. The satellite will be lifting off aboard a Soyuz launcher from the European Space Centre in French Guiana, and has already been integrated on the Fregat upper stage of the launch vehicle and transferred to the launch pad. Pléiades 1B is now ready for flight.

 

“Once Pléiades 1B reaches orbit, Astrium Services will offer a daily very high resolution revisit capability,” said Evert Dudok, CEO of Astrium Services. “For users, Pléiades will soon mean rapid images, regular images and twice as many images in superb resolution.”


Daily revisit capabilities offer true added value for users of space imagery products around the world. The ability to image any place on Earth daily is an essential factor when the utmost reactivity is needed. Conflict zones and crisis/disaster areas will be visible in a matter of hours, wherever their location in the world and, in cases of natural disasters or crises, Pléiades is the perfect tool to help plan evacuation and rescue operations.

 

This feature also makes it possible to observe changes at specific sites every day (for instance, progress made on large-scale engineering construction projects, monitoring of mining, industrial and military complexes, etc). By doubling the daily collection capacity, and with images produced twice as rapidly, the Pléiades constellation offers users very-high-resolution imagery over large swaths; this makes it ideal for mapping large areas, with more opportunities to collect cloud-free images.

 

The two Pléiades satellites will be phased 180° apart in the same near-polar heliosynchronous orbit at an altitude of 694 km, enabling daily revisits to any location on the planet.

 

Pléiades 1B is the second dual-use, very-high-resolution satellite for the Pléiades constellation. Like its twin Pléiades 1A, which has been in orbit since December 2011, Pléiades 1B was manufactured by Astrium in Toulouse for the French space agency CNES. Thales Alenia Space provides the very high-resolution optical imaging instrument.

 

And also like its twin, Pléiades 1B will provide 50-centimetre products over a 20-kilometre footprint to the French and Spanish defence ministries, civil institutions, and to private users through Astrium Services, the exclusive distributor of Pléiades products for the civil market.

 

In addition to their high precision, the Pléiades satellites are also notable for their remarkable agility, which enables tilted imaging from nadir and operation in several acquisition modes (20 images over 1000 x 1000 km², stereo, 3D, mosaic, corridor, etc.).

 

For further information about the Pléiades satellites manufactured by Astrium: http://www.astrium.eads.net/en/programme/pleiades.html


To see a selection of very-high-resolution images from Pléiades 1A, go to: http://www.astrium.eads.net/en/articles/pleiades-1a-spot-6-image-gallery.html

 

About Astrium

Astrium is the number one company in Europe for space technologies and the third in the world. In 2011, Astrium had a turnover close to €5 billion and 18,000 employees worldwide, mainly in France, Germany, the United Kingdom, Spain and the Netherlands.

Astrium is the sole European company that covers the whole range of civil and defence space systems and services.

Its three business units are: Astrium Space Transportation for launchers and orbital infrastructure; Astrium Satellites for spacecraft and ground segment; Astrium Services for comprehensive fixed and mobile end-to-end solutions covering secure and commercial satcoms and networks, high security and broadcast satellite communications equipment and systems, and bespoke geo-information services, worldwide.

Astrium is a wholly owned subsidiary of EADS, a global leader in aerospace, defence and related services. In 2011, the Group – comprising Airbus, Astrium, Cassidian and Eurocopter – generated revenues of €49.1 billion and employed a workforce of over 133,000.

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26 novembre 2012 1 26 /11 /novembre /2012 17:30

Canadian Forces Flag.svg

 

November 24, 2012. David Pugliese - Defence Watch

 

Canada’s Department of National Defence still hasn’t yet produced its long awaited space policy, already years behind schedule. It’s still in draft form, as it has been for years. South of the border things are moving more quickly. This is from the U.S. Department of Defense:

 

WASHINGTON —- The new Defense Department space policy, updated to reflect the fast-growing use and sometimes misuse of the space domain, addresses issues of safety, sustainability and security in space for the 21st century and beyond.

 

The policy, signed Oct. 18, 2012, by Deputy Defense Secretary Ashton B. Carter, follows the release in 2010 of President Barack Obama’s National Space Policy, and in 2011 of the National Security Space Strategy, the first such strategy to be cosigned by the defense secretary and the director of national intelligence.

 

DOD’s space policy also reflects the 2012 DOD Strategic Guidance, which acknowledged growth in the number of spacefaring nations and threats.

 

According to the guidance, the United States will continue to lead global efforts with allies and partners to assure access to and use of the global commons of space by strengthening international norms of responsible behavior and maintaining interoperable military capabilities.

 

“Space capabilities have long provided strategic national security advantages for the United States,” Carter said in a statement.

 

“This updated space policy,” he added, “institutionalizes the changes the department has made in an increasingly constrained budget environment to address the complex set of space-related opportunities and challenges.”

 

For DOD, space systems are critical to ground navigation, smart bomb precision, and to relay unmanned aerial vehicle feeds to troops. Space also is necessary for early warnings of missile launches and for keeping the president connected to U.S. nuclear forces.

 

In an interview with the Pentagon Channel and American Forces Press Service, Dr. John F. Plumb, acting deputy assistant secretary of defense for space policy, described the policy’s main points.

 

“One is that the Department of Defense will deter attacks on our space systems and the systems of our allies, and [the policy] lays out some ways we’re going to do that,” Plumb said.

 

Methods to deter disruptions or attacks against space-based systems, according to the policy, include supporting the development of international norms of responsible behavior related to the space domain, building coalitions to enhance collective security, enhancing the resilience of the U.S. space enterprise, and being able to respond to an attack on U.S. or allied space systems using all elements of national power.

 

The policy also “makes a declaration of how the United States will view interference with our space systems,” the acting deputy assistant secretary said, adding that such interference would be seen as an infringement of U.S. rights and would be “irresponsible in peacetime and during a crisis could be escalatory.”

 

Plumb noted, “The policy states this very clearly and it’s a message we want to make sure people understand.”

 

One of the international norms of responsible behavior will target a growing problem for spacefaring nations — space debris.

 

“Today there are 60 countries operating in space [and] there are thousands of pieces of debris, pieces of [derelict] rockets or old satellites … flying around in space,” he said.

 

According to the NASA Orbital Debris Program Office, more than 21,000 pieces of orbital debris larger than 10 centimeters exist in orbit, along with 500,000 smaller pieces and more than 1 million pieces smaller than 1 centimeter.

 

“We need to have an international system of norms of responsible behavior for operating in space to mitigate debris,” Plumb said. “That’s something we’re working on and it’s something the strategy points toward.”

 

Generally, the policy identifies how DOD will promote international cooperation and commercial partnerships, drive changes within DOD space architectures and acquisition processes, and work to shape the space environment.

 

Saving money on expensive space assets is another goal of the department, Plumb said, and working with allies and commercial partners can help accomplish this.

 

The Defense Department has begun to work with commercial space companies to reduce department costs and to help energize the industrial base.

 

“We [also] need to make sure that U.S. companies are able to compete fairly for international contracts,” Plumb added, referring to satellites and many systems, subsystems, parts and components that are controlled by the U.S. government for security reasons but that already are being sold commercially by companies around the world.

 

In April, for example, officials from the Defense and State departments released a report that urged Congress to move communications and some remote-sensing satellites off the tightly controlled U.S. Munitions List and into the commercial enterprise.

 

The policy also directs DOD to expand international cooperation in space matters, Plumb said, which “allows you to leverage capabilities together so instead of having to build your own system you can use somebody else’s system.”

 

He added, “It also buys you a sense of collective security. If you’re operating as a coalition in space, you have more partners relying on the same assets. An attack on those space assets by an adversary would no longer necessarily be against you but against a coalition.”

 

As an example, during a trip to Perth, Australia, last week, Defense Secretary Leon E. Panetta announced that the United States would place two key space systems in Australia.

 

One system, an Air Force C-band space-surveillance radar, will track space assets and debris, increase the security of space-based systems and increase coverage of space objects in the Southern Hemisphere.

 

The other system is an advanced U.S. space surveillance telescope designed and built by the Defense Advanced Research Projects Agency. In Australia, the system will help to leverage space surveillance capabilities for both nations, officials said.

 

DOD also must be ready to mitigate the effects of attacks on its space systems, Plumb said. One way to do that, spelled out in the policy, is to plan for resilience in space systems, he added.

 

“Resilience means being able to survive an attack,” the acting deputy assistant secretary said, and it means strategically distributing space capabilities among different satellites rather than putting many on one satellite.

 

“If that [one] satellite goes down,” he said, “whether it’s due to a solar flare or an attack or bad wiring, we don’t want to lose all these mission capabilities. These things are very expensive, so resilient architecture would be more distributed.”

 

The second part “of mitigating the ability of an adversary to attack us would be to make sure that we can operate effectively on the battlefield even if our space capabilities are being degraded,” Plumb added.

 

The growing threat to U.S. and allied space systems, he said, is real.

 

“Other nations and nonstate actors are developing direct ascent anti-satellite weapons, jammers and ground-based lasers, all designed to interfere with or destroy satellites,” Plumb said.

 

“We need to be prepared and enhance our resilience so these types of capabilities don’t prevent us from operating in space,” he added. “So we need to move forward with the way we operate in space, for future conflicts in particular. This space policy gives us a good pathway forward.”

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26 novembre 2012 1 26 /11 /novembre /2012 13:00

USAF Space Fence (Image Lockheed Martin)

 

24 novembre 2012 par Jacques N. Godbout - 45enord.ca

 

La nouvelle politique de défense spatiale du ministère américain de la Défense a été mise à jour pour tenir compte de la croissance rapide de l’utilisation, parfois à mauvais escient, de l’espace. La nouvelle politique aborde les questions de sécurité dans l’espace pour le 21e siècle et au-delà.

 

La politique, signée le 18 octobre 2012 par le secrétaire-adjoint à la Défense Ashton B. Carter, fait suite à la publication en 2010 de la Politique spatiale nationale et, en 2011, de la Stratégie spatiale de la sécurité nationale, la première stratégie du genre à être cosignée par le secrétaire à la Défense et le directeur national du renseignement.

 

La politique spatiale du ministère américain de la Défense reflète également l’orientation stratégique 2012, qui a tient compte de la croissance du nombre de nations présentes dans l’espace et des menaces. Selon cette politique, les États-Unis continueront d’être, avec leurs alliés, les leaders mondiaux des efforts pour assurer l’accessibilité et l’utilisation du patrimoine mondial qu’est l’espace par le renforcement des normes internationales de comportement responsable et le maintien de l’interopérabilité des capacités militaires.

 

Lire l’article de l’American Forces Press Service >>

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26 novembre 2012 1 26 /11 /novembre /2012 12:05

yaogan.jpg

 

November 26, 2012 china-defense-mashup.com

 

China launched a Long March rocket Sunday and successfully orbited a Yaogan observation satellite believed to be on a naval surveillance mission, according Chinese state media and independent analysts.

 

A Long March 4C rocket lifted off at 0406 GMT Sunday (11:06 p.m. EST Saturday) from the Jiuquan launching base in northwest China. The three-stage rocket placed the Yaogan 16 payload into a 680-mile-high orbit with an inclination of 63.4 degrees, according to U.S. military tracking data.

 

Launch occurred at 12:06 p.m. Beijing time, the state-run Xinhua news agency reported.

 

The satellite was designed by the China Aerospace Science and Technology Corp., a state-owned space contractor, according to the Xinhua news agency.

 

Xinhua reported Yaogan 16 is “designed for a variety of uses, including technological experimentation, land resource surveying, agricultural yield estimation and disaster prevention and reduction.”

 

But the launch of Yaogan 16 and its orbit suggest similarities to a satellite mission launched in March 2010, which consisted of three spacecraft flying in close formation. Experts believe the satellites track ship movements with optical and radar observation instruments.

 

Experts believe the Yaogan 16 payload may also include three satellites.

 

China’s naval observation satellites are the counterpart to the U.S. National Reconnaissance Office’s Naval Ocean Surveillance System, or NOSS, which include two or three formation-flying satellites in similar orbits.

 

China’s Yaogan satellites are likely run by the Chinese military, according to Western analysts.

 

Sunday’s mission marked the 17th space launch of the year by China.

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24 novembre 2012 6 24 /11 /novembre /2012 12:30

MUOS satellite source US Navy

 

23 November 2012 naval-technology.com

 

The US Strategic Command (USSTRATCOM) has accepted the first Lockheed Martin-built mobile user objective system (MOUS-1) satellite for initial operational deployment.

 

Launched on 24 February, the MUOS-1 is a next-generation narrowband tactical communications system that will provide enhanced communications capabilities for combatants on the move.

 

JFCC Space commander and 14th Air Force (Air Forces Strategic) lieutenant general Susan Helms said: "MUOS-1 allows JFCC Space to continue optimal tactical communications support for the joint warfighter and the nation."

 

The satellite will enable the continuous flow of tactical communication to and among all branches of the US military, while ensuring coverage for national emergency assistance, disaster response and humanitarian relief.

 

MUOS programme manager at SPAWAR navy captain Paul Ghyzel said: "Whether it's in vehicles, on ships, in submarines, in aircraft, or simply carried by service members who are dismounted from vehicles and on the move, this system was designed to bring them voice and data communication services, both in point-to-point mode and through networked communications."

""MUOS-1 allows JFCC Space to continue optimal tactical communications support for the joint warfighter and the nation."

 

Following the launch of the second satellite, scheduled for July 2013, the MUOS will provide simultaneous voice, video and data capability for military users.

 

The MUOS constellation comprises four satellites and an on-orbit spare, in addition to four ground stations to provide users with worldwide coverage and the ability to connect anywhere around the world.

 

Compatible with the current UHF follow-on system and legacy terminals, a single MUOS will provide four times the capability that is being provided by the entire UFO constellation of eight satellites for the US Navy.

 

The MUOS programme is being managed by the US Navy's Program Executive Office for Space Systems in Chantilly, Virginia, as well as Communications Satellite Program Office in San Diego, US.

 

Full operational capability of the MUOS constellation is scheduled to be achieved in 2015 and will extend narrowband availability beyond 2025.

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23 novembre 2012 5 23 /11 /novembre /2012 08:25

Ariane 5 source Arianespace

 

22 novembre 2012 Par Hassan Meddah – Usine Nouvelle

 

Financement des principaux programmes sur les cinq prochaines années, développement double d'Ariane 5ME et d'Ariane 6..., la filière spatiale salue les décisions prise par les ministres européens du secteur spatial.

 

Les industriels de la filière spatiale retrouvent le sourire: ils auront du travail en quantité pour les 5 années à venir! Au terme d'une réunion de deux jours et d'intenses négociations, les ministres européens de l'Espace, se sont en effet engagés à investir 10 milliards d'euros dans les programmes spatiaux (lanceurs, programme de satellites, station orbitale internationale...) pour les prochaines années. En cette période où le moindre euros de dépense publique est compté, l'effort européen est significatif. "Le niveau de budget voté pour la période 2013-2017 et les programmes financés marquent une véritable consolidation de l’avenir du spatial européen", s'est d'ailleurs félicité Astrium, l'un des principaux maître d'œuvre industriel spatial européen, qui emploie 18 000 salariés.

 

Les industriels sont surtout confortés par les choix de l'agence européenne en matière de lanceurs. Partisans d'une version modernisée d'Ariane 5 (option Ariane 5ME) plutôt que d'un tout nouveau lanceur (option Ariane 6) , ils ont été partiellement entendus par l'agence européenne spatiale. Le conseil ministériel a en effet décidé de financer les études de définition détaillée d'Ariane 6 et de continuer le développement d'Ariane 5ME. "Ces activités sont financés pour les deux prochaines années. La décision quant à la continuité de deux lanceurs sera prise en 2014", précise toutefois l'agence européenne.

 

Pourtant, en amont du conseil ministériel, la filière spatiale craignait qu'Ariane 5 ME soit sacrifiée au profit d'Ariane 6, ce qui aurait été catastrophique pour leur activité. "(...) le passage immédiat à une nouvelle génération de lanceurs ne susciterait aucune activité industrielle significative avant 2015-2016. Il engendrerait des risques de pertes de compétence des bureaux d'études des industriels", indique même le récent rapport du parlement français sur les enjeux du secteur spatial.

 

Deux projets compatibles

 

Les industriels ont alors tout fait pour convaincre les États que les deux projets étaient compatibles, financièrement et techniquement. "Sur les 1,5 milliards d'euros nécessaires au développement d'Ariane5 ME, 700 millions seront ré-exploitables pour Ariane 6. Et sans une version intermédiaire modernisée d'Ariane, la contribution des États pourrait passer de 120 à 150 voir 200 millions d'euros par an pour équilibrer les comptes de l'activité lanceur" , nous avait confié un industriel français alors que les négociations battaient leur plein. L'argument a finalement fait mouche auprès des Etats européens.

 

Geneviève Fioraso, ministre de la Recherche en charge du secteur spatial, estime que la France a été "un acteur déterminant des décisions prises lors du Conseil ministériel de l'ESA". Sa contribution financière s'élèvera à plus de 2,3 milliards d'euros. De quoi conforter les 16 000 emplois directs hautement qualifiés et peu délocalisables de la filière spatiale hexagonale.

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23 novembre 2012 5 23 /11 /novembre /2012 08:05

http://www.astrium.eads.net/media/image/pliades1b_derniers-prparatifs-avant-mise-en-container_astrium2.JPG

 

Nov 22, 2012 ASDNews Source : Arianespace

 

The Pléiades 1B satellite passenger for Arianespace’s fourth Soyuz flight from French Guiana is ready for integration into the medium-lift launcher’s payload “stack” at the Spaceport.

 

This dual-use, very-high-resolution imaging satellite has been transferred from the S5 payload preparation center – where it was fueled with hydrazine – to the Spaceport’s S3B processing building for the integration process.

 

The S3B facility has been configured for preparation of the payload stack on Soyuz launchers operated from the Spaceport, with this component consisting of the mission’s spacecraft payload, the Fregat upper stage, and an ST-type fairing that provides protection during initial ascent through the atmosphere.

 

Fueling of the Fregat upper stage for Arianespace’s upcoming Soyuz flight was completed in the S3B building earlier this month, and this highly flexible orbital system has now been installed in an integration stand – ready to receive Pléiades 1B, followed by the payload fairing encapsulation.

 

Pléiades 1B will be lofted by Soyuz on a November 30 nighttime flight, marking the fourth Soyuz liftoff from French Guiana since this medium-lift vehicle’s service entry at the Spaceport in October 2011 – and the second performed by Arianespace this year.  The upcoming mission is designated VS04 in the company’s numbering system for its launcher family operating from the Spaceport, consisting of the medium-lift Soyuz, heavy-lift Ariane 5, and light-lift Vega.

 

With a fueled mass of approximately 1 metric ton, Pléiades 1B is to provide optical observation coverage for the French and Spanish defense ministries, civil institutions and private users.  It will operate from a 695-km. heliosynchronous orbit, joining the twin Pléiades 1A spacecraft that was launched by Arianespace last December on Soyuz’ second mission from the Spaceport.

 

France’s CNES space agency is the Pléiades prime contractor and system architect, which selected the Astrium division of EADS to build the satellites.

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21 novembre 2012 3 21 /11 /novembre /2012 19:09

MUOS satellite source US Navy

 

Nov 21, 2012 ASDNews Source : US Navy

 

The Navy announced today that U.S. Strategic Command (USSTRATCOM) has accepted the first Mobile User Objective System (MUOS) satellite for initial operational use.

 

MUOS is a next-generation narrowband tactical communications system designed to improve communications for U.S. forces on the move. The Naval Satellite Operations Center (NAVSOC) at Point Mugu, Calif., began "flying" the satellite in June.

 

"This provides the warfighter with powerful capability," said Vice Adm. Michael S. Rogers, commander, U.S. Fleet Cyber Command/ U.S. 10th Fleet. "The hard work of the Space and Naval Warfare Systems Command, NAVSOC, and other teammates continues to benefit Navy and joint warfighting missions."

 

The Navy is responsible for providing narrowband satellite communication for the Department of Defense and U.S. Fleet Cyber Command is assigned to serve as the Navy Component Command to USSTRATCOM for space, cyberspace, and information operations.

 

USSTRATCOM Joint Functional Component Command for Space (JFCC Space) is responsible for executing continuous, integrated space operations to deliver theater and global effects in support of national and combatant commander objectives. It coordinates space operational-level planning, integration, and coordination to ensure a unified effort in supporting military and national security operations as well as civil authorities.

 

"MUOS-1 allows JFCC Space to continue optimal tactical communications support for the joint war fighter and the nation," said Lt. Gen. Susan Helms, commander of JFCC Space and 14th Air Force (Air Forces Strategic).

 

In addition to providing continuous communication for all branches of the U.S. military, Navy delivered space-based narrowband capability that MUOS provides also ensures reliable worldwide coverage for national emergency assistance, disaster response, and humanitarian relief.

 

"Whether it's in vehicles, on ships, in submarines, in aircraft, or simply carried by service members who are dismounted from vehicles and on the move, this system was designed to bring them voice and data communication services, both in point-to-point mode and through networked communications. Those capabilities have not existed with previous programs," said Navy Capt. Paul Ghyzel, the MUOS program manager at SPAWAR.

 

The MUOS constellation will consist of four satellites and an on-orbit spare. The system also includes four ground stations strategically located around the globe, which provide worldwide coverage and the ability to connect users wherever they are. The ground system transports data, manages the worldwide network and controls the satellites.

 

With today's narrowband communication system, users have to be stationary with an antenna up and pointed toward a satellite. MUOS will allow the warfighter to move around the battlespace while communicating and send data at 10 times more capacity than now.

 

After the launch of the second satellite, projected for July 2013, MUOS will provide military users simultaneous voice, video and data capability by leveraging 3G mobile communications technology.

 

The MUOS constellation is expected to achieve full operational capability in 2015, extending narrowband availability well past 2025.

 

The MUOS program is managed by the Navy's Program Executive Office for Space Systems, Chantilly, Va., and its Communications Satellite Program Office in San Diego.

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21 novembre 2012 3 21 /11 /novembre /2012 18:24

50e-lancement-d-ariane-5-sous-la-protection-des-fag

 

21 novembre 2012 Par Julien Bonnet – Usine Nouvelle

 

La ministre française de la Recherche Geneviève Fioraso a annoncé qu'un texte commun avait été préparé avec l'Allemagne. Il prévoit une évolution vers un lanceur plus robuste - option privilégiée par la France - mais également une étape intermédiaire avec une version évoluée d'Ariane 5.

 

Entre une modification du lanceur actuel et une nouvelle génération, France et Allemagne ont tranché. Ce sera... les deux !

A l'occasion du conseil ministériel de l'Agence spatiale européenne (ESA) qui se tient ce mercredi 21 novemebre à Naples et où se jour l'avenir du lanceur européen, la ministre de la Recherche Geneviève Fioraso a en effet indiqué que la France et l'Allemagne avaient préparé "un texte commun (...) qui s'élargit naturellement à nos autres partenaires d'Ariane".

 

"L'évolution vers Ariane 6 a été actée, avec l'objectif d'un lanceur plus robuste et mieux adapté à l'évolution du marché, tout en optimisant la transition pour garantir les emplois et les compétences industrielles", a indiqué le ministère français de la recherche dans un communiqué.

 

Mais l'accord prévoit également une étape de transition avec une version évoluée d'Ariane 5, dite Ariane 5 ME. Cette option était priviégiée par l'Allemagne et les industriels qui estimaient ce pari moins risqué.

 

Ariane 5 ME pour 2017, Ariane 6 pour 2021


"Des synergies vont être recherchées dans Ariane 5 étape intermédiaire avec un horizon de mise en vol en 2017", a ajouté Geneviève Fioraso, en précisant que la mise en service d'Ariane 6 était "envisagée pour 2021, 2022".

 

"Après des discussions intenses, la France et l'Allemagne sont aujourd'hui unies dans une vision commune de l'espace pour les 10 ans à venir, avec des engagements précis, de moyen et long terme", a assuré le ministère.

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20 novembre 2012 2 20 /11 /novembre /2012 18:05

Galileo.svg

 

20 November 2012 aerospace-technology.com

 

French space agency Centre National d'Etudes Spatiales (CNES) has broken ground on the Galileo Security Monitoring Center (GSMC) in Saint Germain en Laye, Paris.

 

The ceremony was attended by French civilian and military authorities and EU officials.

 

GSMC will be the future hub of Galileo programme security and will handle tasks such as complete management of the system security and of the Galileo Public Regulated Service (PRS) access, command and control of European GNSS in accordance with Joint Action principle, as well as provision of PRS and GNSS security capabilities and analysis.

 

“The excellent collaboration with France on the GSMC is a positive step for Galileo as well as for Europe."

 

In addition, the centre will ensure the reliability of the Galileo system.

 

Recently, a pair of Galileo navigation satellites, Flight Model 3 (FM3) and Flight Model 4 (FM4), were launched from the European Spaceport in French Guiana aboard a Soyuz ST-B VS03 rocket.

 

European GNSS Agency (GSA) executive director Carlo des Dorides said that this marked a key step in the development of the Galileo programme.

 

"The excellent collaboration with France on the GSMC is a positive step for Galileo as well as for Europe," Dorides added.

 

CNES president and Galileo programme interministerial coordinator Yannick d'Escatha said the GSMC project was one of the key steps for the success of Galileo and reflects France's commitment to the security of the European programme.

 

"Together, the European Union and its member states are benefiting from this fruitful collaboration," d'Escatha added.

 

The centre is being built by CNES in collaboration with the French Ministry of Defence and is expected to be complete in 2013 and will employ around 30 professionals from across Europe.

 

In addition to a centre in France, a second GSMC facility will be located in Swanwick, UK.

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20 novembre 2012 2 20 /11 /novembre /2012 07:30

http://www.nasa.gov/images/content/660602main_SDV0-3%20Run_9.jpg

 

Nov 20, 2012 by Rick Smith for Marshall Space Flight Center (SPX)

 

Huntsville AL-NASA has completed three key milestones in its development of new atmospheric deceleration technologies to support exploration missions across the solar system.

 

The Low-Density Supersonic Decelerator project, which is developing technologies to use atmospheric drag to dramatically slow a vehicle as it penetrates the skies over worlds beyond our own, completed three successful rocket sled tests of the "SIAD-R," a Supersonic Inflatable Aerodynamic Decelerator, the first of three innovative deceleration systems now in development.

 

The tests were conducted Oct. 10, Oct. 24 and Nov. 6. The project is a NASA Technology Demonstration Mission led by NASA's Jet Propulsion Laboratory in Pasadena, Calif.

 

The SIAD-R, built for NASA by ILC Dover of Frederica, Del., is a balloon-like pressure vessel with a diameter of nearly 20 feet, designed to inflate around a vehicle and slow its entry.

 

The rocket sled tests of the SIAD-R were conducted at the Naval Air Warfare Center Weapons Division at China Lake, Calif.

 

"The tests demonstrate the ability of the SIAD-R to survive the aerodynamic loads experienced during inflation and operation [while entering the Martian atmosphere]," said Jet Propulsion Laboratory engineer Mark Adler, who manages the supersonic decelerator project.

 

As the rocket-powered sled accelerated down the four-mile-long track at speeds of several hundred miles an hour, the inflatable device experienced aerodynamic loads 25 percent greater than it will face during atmospheric entry at Mars.

 

That added 25 percent is a built-in safety margin, which ensures the device works properly when it really matters, Adler said - when it eventually must slow down an entry vehicle carrying future robotic explorers.

 

The team confirmed the inflatable device maintained integrity during the tests - with no rips or damage to the vessel detected. Researchers continue to review data recorded by sensors and instrumentation on the sled and the device, as well as test footage recorded by high-speed cameras placed along the entire sled track.

 

"It's all gone really well," Adler said. "We have an awesome team, and the folks at China Lake make this possible with their remarkable rocket sled capabilities."

 

"The rocket sleds for this test series are the tallest we've ever built, and perhaps the tallest built in the world," said Eric Laskey, head of China Lake's Supersonic Naval Ordnance Research Tracks branch.

 

"The [NASA and China Lake] team worked well together to design and build this amazing system," he added, praising the team's "flexibility, capability and can-do spirit."

 

With this series of SIAD-R tests complete, Adler said his team now looks forward to testing the project's next piece of hardware - a massive parachute 110 feet in diameter, intended to further slow the entry vehicle once the SIAD-R (or its larger counterpart, the SIAD-E, which has a diameter slightly larger than 26 feet) has initially chopped the vehicle's speed from Mach 3.5 to Mach 2.

 

All three supersonic deceleration devices - the two inflatable vessels and the advanced parachute system - will be the largest of their kind ever flown at speeds several times greater than the speed of sound.

 

The first SIAD-R and parachute supersonic flight test is scheduled for summer 2014. The devices could be used in Mars missions launching as early as 2018.

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15 novembre 2012 4 15 /11 /novembre /2012 08:35

AEHF Satellite

 

Nov 15, 2012 (SPX)

 

Sunnyvale, CA - Lockheed Martin is currently under contract to deliver four AEHF satellites and the Mission Control Segment. The program has begun advanced procurement of long-lead components for the fifth and sixth AEHF satellites.

 

The U.S. Air Force and Lockheed Martin have completed on orbit testing of the second Advanced Extremely High Frequency (AEHF) military communications satellite. Following successful spacecraft testing, Satellite Control Authority (SCA) was turned over to the 14th Air Force at Vandenberg Air Force Base, Calif., for operations.

 

The AEHF system provides vastly improved global, survivable, highly secure, protected communications for strategic command and tactical warfighters operating on ground, sea and air platforms. The system also serves international partners including Canada, the Netherlands and the United Kingdom.

 

A single AEHF satellite provides greater total capacity than the entire legacy five-satellite Milstar constellation. Individual user data rates will be increased five-fold, permitting transmission of tactical military communications, such as real-time video, battlefield maps and targeting data. In addition to its tactical mission, AEHF also provides the critical survivable, protected, and endurable communications links to national leaders including presidential conferencing in all levels of conflict.

 

"Completion of on-orbit testing and handover of AEHF-2 is a critical milestone for the Air Force and our nation," said Dave Madden, Director of the Military Satellite Communications Systems Directorate at the U.S. Air Force's Space and Missile Systems Center. "The AEHF satellites on orbit and those planned for launch will play a pivotal role in our national security for years to come."

 

AEHF-2 launched May 4, 2012 aboard a United Launch Alliance Atlas V rocket. After successful spacecraft deployments and payload activation, the satellite has now completed all on-orbit testing. The on-orbit testing demonstrated both interoperability with the existing Milstar constellation and established communications networks between combinations of EHF communications terminals with legacy Milstar data rates, as well as at the new AEHF extended data rates (XDR).

 

"The U.S. Air Force, Lockheed Martin and Northrop Grumman AEHF team performed a thorough and efficient on orbit test campaign for this critical satellite, and AEHF-2 is performing exceptionally well," said Mark Calassa, Lockheed Martin's vice president and AEHF program manager. "With the first two AEHF satellites now on orbit, the Department of Defense is well on its way to augmenting, improving and expanding its critical military satellite communications architecture to meet increasing demand from users worldwide."

 

Lockheed Martin is currently under contract to deliver four AEHF satellites and the Mission Control Segment. The program has begun advanced procurement of long-lead components for the fifth and sixth AEHF satellites.

 

AEHF-1 and AEHF-2 have both launched and are on orbit. Lockheed Martin has completed work on AEHF-3 and will prepare the satellite for a September 2013 launch date.

 

The AEHF team includes the U.S. Air Force Military Satellite Communications Systems Directorate at the Space and Missile Systems Center, Los Angeles Air Force Base, Calif. Lockheed Martin Space Systems Company, Sunnyvale, Calif., is the AEHF prime contractor, space and ground segments provider as well as system integrator, with Northrop Grumman Aerospace Systems, Redondo Beach, Calif., as the payload provider.

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15 novembre 2012 4 15 /11 /novembre /2012 08:00

http://postmediaottawacitizen.files.wordpress.com/2012/11/spacefence.jpg?w=600&h=337

 

November 14, 2012. David Pugliese - Defence Watch

 

News release from Lockheed:

 

Lockheed Martin has submitted its final contract proposal to build Space Fence, an advanced ground-based radar system that will improve the way the U.S. Air Force identifies and tracks orbital objects.

 

Space Fence will provide much-needed enhanced space situational awareness capabilities for the Air Force and allow the service to decommission the aging U.S.-based Air Force Space Surveillance System, originally installed in 1961.

 

“The original surveillance system wasn’t designed to detect and track the hundreds of thousands of smaller, orbiting objects that are in space today, potentially threatening the International Space Station, future manned space flight missions and our nation’s critical satellite assets,” said Steve Bruce, vice president for space surveillance systems at Lockheed Martin’s Mission Systems & Sensors business. “With decades of experience developing powerful S-band radar systems, Lockheed Martin has proposed a scalable and affordable Space Fence solution for the Air Force that will transform space situational awareness.”

 

The Air Force plans to begin construction at its first Space Fence site on Kwajalein Atoll in the Marshall Islands in the fall of 2013 to meet the program’s 2017 initial operational capability goal. The contract value is estimated at $1.9 billion over a seven-year period of performance.

 

Using powerful, new ground-based S-band radar technology, Space Fence will enhance the way the U.S. detects, tracks, measures and catalogs orbiting objects and space debris with improved accuracy, better timeliness and increased surveillance coverage. Earlier this year, Lockheed Martin demonstrated its prototype Space Fence radar proving it could already detect resident space objects.

 

With more than 400 operational S-band arrays deployed worldwide, Lockheed Martin is a leader in S-band radar development, production, operation and sustainment. The Lockheed Martin-led team – which includes General Dynamics, AMEC and AT&T – has decades of collective experience in space-related programs, including sensors, mission processing, cataloging, orbital mechanics, net-centric communications and facilities.

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14 novembre 2012 3 14 /11 /novembre /2012 19:21

les-quatre-microsatellites-du-projet-elisa

 

14 novembre 2012, Usine Nouvelle

 

"Astrium Americas" réunira l'ensemble des activités du groupe sur le marché nord-américain. Son premier président sera l'ancien secrétaire général de la NASA.

 

EADS et sa filiale Astrium ont annoncé ce mercredi 14 novembre, la création d'Astrium Americas. Comme son nom l'indique, cette entreprise regroupera l'ensemble des activités du groupe sur le marché nord-américain "au service de ses clients aux Etats-Unis et au Canada".

 

Astium Amercias "fournira également aux clients gouvernementaux les services de communications sécurisées par satellite qui étaient auparavant commercialisés par l’entreprise américaine Vizada, Inc", précise le communiqué diffusé par le groupe.

 

Le siège de cette nouvelle entité sera établi à Herndon en Virginie, précise Astrium. A sa tête, le groupe a choisi de nommer John Schumacher, ancien secrétaire général de la NASA.

 

"Alors que le marché spatial se mondialise de plus en plus,  nous souhaitons proposer nos capacités spatiales, qui s’étendent des systèmes spatiaux complets aux services satellitaires de pointe au gouvernement américain et aux clients du secteur privé", a déclaré John Schumacher cité dans le communiqué.

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13 novembre 2012 2 13 /11 /novembre /2012 13:50

50e-lancement-d-ariane-5-sous-la-protection-des-fag

 

09/11/2012 Vincent Lamigeon, grand reporter à Challenges - Supersonique

 

Didier Lucas.jpgDirecteur général de l’Institut Choiseul, think-tank spécialisé dans les relations internationales, Didier Lucas est l’auteur d’une note stratégique « Quelle politique spatiale pour la France ? Donner plus d’espace à l’industrie » (juillet 2012). A dix jours de la conférence ministérielle de l’ESA (Agence spatiale européenne), qui doit décider du successeur du lanceur Ariane 5, il fait le point sur les grandes questions du secteur.

 

Combien de temps Ariane 5 peut-elle maintenir sa part de marché (autour de 50%) face aux concurrents russe (Proton, Angara), chinois (Longue Marche) ou américains (Falcon 9 de Space X)?

 

Didier Lucas : Ariane 5 est un succès incontestable. Il faut souligner les 51 lancements consécutifs réussis ce qui en fait le lanceur le plus fiable au monde. Quant au carnet de commandes, il permet de tenir encore quelques années, mais la question se pose de l’évolution ou du remplacement de ce lanceur. C’est une évidence, le durcissement de la compétition internationale nécessite d’anticiper les actions des compétiteurs étrangers. La compétitivité et la performance d’Ariane 5 ne sont pas mises en cause. Ce qui importe c’est surtout de faire le bon choix politique, technologique et financier, car il n’est pas acceptable qu’Ariane 5 perde des parts de marchés.

 

Le camp français se déchire entre partisans d’Ariane 5 ME (mid-life evolution), version musclée d’Ariane 5 qui passerait de 10 à 12 tonnes de charge utile, et un ceux d’un passage direct à Ariane 6. Ariane 5 ME vous semble-t-il un passage obligé vers Ariane 6 ?

 

Ariane 6 a pour objectif, très ambitieux, de réduire drastiquement le coût de possession par les Etats d’un système d’accès à l’espace. Cela passe par des ruptures au niveau des technologies et par une nouvelle organisation du secteur des lanceurs. Il n’est pas réaliste de lancer maintenant ce développement, car les mêmes technologies et la même organisation produiraient les mêmes effets. Il faut donc se donner du temps, car le développement d’Ariane 6 lancé sans le bon niveau de maturité pourrait conduire à des surcoûts et des retards non maîtrisés. Il faut se donner trois à cinq ans pour préparer les démonstrations qui permettront de lancer le programme Ariane 6.

 

C’est là qu’intervient Ariane 5ME. Ariane 5ME est une évolution d’Ariane 5 qui permet d’accroître la charge utile, et grâce au rallumage de son dernier étage, de placer chacun des satellites sur la meilleure orbite. Avoir rapidement la capacité de rallumer l’étage supérieur serait un atout car seuls les lanceurs américains et russes peuvent lancer les nouveaux satellites à propulsion électrique. Ariane 5ME a un double avantage. Premièrement, son développement est déjà très avancé, si bien qu’il est certain que l’Europe peut disposer d’un lanceur qui répond parfaitement aux attentes du marché en 5 ans. Deuxièmement, une grande partie des développements réalisés pour Ariane 5ME resserviront pour Ariane 6. En, effet, s’il y a bien une chose sur laquelle tout le monde s’accorde, c’est qu’Ariane 6 aura un étage supérieur rallumable.

 

Quelles sont les caractéristiques d’un futur lanceur européen compétitif ?

 

Il n’y a pas une réponse toute faite. Il est important que les parties prenantes se mettent autour d’une table pour faire le bon choix. Il conviendra de bien prendre en compte le coût de possession du système dès la conception, ainsi que le maintien d’un secteur des lanceurs viable et apte à garantir la pérennité d’un accès à l’espace. C’est un choix qui engage la France et ses partenaires européens pour plusieurs décennies. Il reste à préciser les contributions de ces partenaires et à définir les grands équlibres.

 

La France a dans le passé commis des erreurs stratégiques : je pense au programme d’avion spatial Hermès dans lequel nous sommes partis « la fleur au fusil », sans avoir les bons niveaux de maturité technologique. Le programme a été en restructuration permanente avant de disparaître furtivement…

 

Est-il politiquement envisageable de revenir sur le principe du retour géographique pour le futur lanceur ?

 

Le retour géographique est un mécanisme de l’Agence Spatiale Européenne qui permet à un état membre qui contribue à un programme d’avoir la garantie qu’il récupèrera sur son territoire un volume d’activité proportionnel à sa contribution. C'est un bon mécanisme quand il s’agit d’intéresser les Etats membres à investir dans des programmes en coopération (par exemple de grosses missions scientifiques), qui sont des exemplaires uniques.

 

Par contre, le système est pénalisant quand les produits réalisés en coopération, tels qu’Ariane, doivent être produits en série et être compétitifs sur le marché mondial des services de lancements. Politiquement, le sujet est bien sûr sensible. La dispersion géographique de la production d’Ariane en Europe induit, certes des surcoûts, mais le gros de l’activité reste concentré dans quelques pays. Il faut donc relativiser…

 

Comment mieux structurer la filière spatiale française et européenne, ajourd’hui répartie entre l’industrie, les agences spatiales nationales, l’ESA, la Commission européenne ? 

 

La filière spatiale française a d’abord, et avant tout, une finalité stratégique : l’accès à l’espace, le renseignement, les télécommunications sécurisées. Il se trouve qu’en Europe, le marché institutionnel est étroit et fragmenté, si bien que les industriels français pour avoir des volumes suffisants d’activité sont tenus de se battre sur les marchés commerciaux et export.

 

L’industrie spatiale française est la première du monde dans le domaine des services de lancement commerciaux, elle détient 40 % du marché des satellites de télécommunications et réalise près des 2/3 de son chiffre d’affaires sur les marchés commerciaux et export. C’est exactement l’inverse de ce que font des grands acteurs comme les Etats-Unis et la Chine où les marchés institutionnels sont considérables et fermés à la concurrence, si bien que leurs industriels sont peu présents sur les marchés commerciaux. C’est absolument essentiel de bien saisir cette différence.

 

L’organisation étatique en Europe reste trop complexe avec de nombreux acteurs : une simplification s’impose. Par ailleurs, l’industrie a affirmé qu’elle était prête à prendre d’avantage de responsabilités, et elle a fait des propositions dans ce sens.

 

Pour restructurer la filière spatiale, il faut donc, comme nous le proposons dans la note stratégique publiée par l’Institut Choiseul, mettre en œuvre une concertation permanente entre l’état et l’industrie afin de constituer une « équipe de France » mieux préparée pour coopérer en Europe et pour affronter les marchés commerciaux export. Cette concertation doit prendre en compte la dimension interministérielle de l’espace : recherche, défense, transport, environnement, ce qui induit une synergie forte avec le monde industriel. Le secteur spatial créé des emplois qualifiés et non délocalisables, et il a un effet de levier considérable sur de nombreuses activités. Il est urgent de se concerter car, face à la baisse prévisible des budgets, il va falloir mieux investir.

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13 novembre 2012 2 13 /11 /novembre /2012 12:40

Unha-3.jpg

 

MOSCOU, 13 novembre - RIA Novosti

 

Les militaires nord-coréens mènent des essais de moteurs de fusées, rapportent mardi les médias occidentaux se référant à des experts américains et sud-coréens.

 

Les spécialistes de l'Institut américano-sud-coréen de l'Ecole Johns Hopkins d'Etudes internationales avancées ont analysé les images satellitaires de la base de lancement de Sohae situé dans l'ouest de la Corée du Nord. D'après les experts, les photos montrent des réservoirs de moteurs-fusées et des traces de leurs essais sur le site.

 

Dans ce contexte, les chercheurs estiment que Pyongyang pourrait procéder à un nouvel essai de missile balistique au premier semestre 2013.

 

En avril dernier, en dépit de nombreuses protestations de la part de la communauté internationale, Pyongyang a effectué le tir de sa fusée Unha-3 avec à son bord un satellite d'observation terrestre. Le lancement s'est soldé par un échec, des débris de la fusée étant retombés en mer Jaune, à 165 km au sud de Séoul.

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13 novembre 2012 2 13 /11 /novembre /2012 12:00

Ariane 5 source Arianespace

 

Nov 13, 2012 ASDNews Source : Arianespace

 

    Arianespace's fourth Spaceport mission with Soyuz

 

The dual-use, very-high-resolution Pléiades 1B satellite payload for Arianespace's fourth Soyuz mission from French Guiana is ready for fueling, marking a new step in the preparation campaign for its nighttime launch on November 30.

 

Built by EADS' Astrium division for the French CNES space agency, Pléiades 1B has completed initial checkout in the Spaceport's S1B clean room facility, and has now been moved to the larger, multi-bay S5 payload processing center for the loading of its onboard propellant.

 

This satellite is designed to provide optical observation coverage with 50-centimeter resolution for the French and Spanish defense ministries, along with civil institutions and private users.  After the launch by Soyuz, Pléiades 1B will join the twin Pléiades 1A satellite, which was lofted by an Arianespace Soyuz mission in December 2011 for operation from a quasi-polar heliosynchronous orbit.

 

Offering exceptional agility to maximize acquisitions over specific areas of interest, the Pléiades satellites can be “rush programmed” to overfly designated target zones, with an automated production system generating 20 km. x 20 km. orthorectified images in 30 minutes.

 

The system’s capabilities were demonstrated by Pléiades 1A’s imaging of areas along the U.S. eastern seaboard affected by Hurricane Sandy, underscoring the delivery of high-detail data that is essential for emergency response.

 

Arianespace’s upcoming Soyuz flight with Pléiades 1B is designated VS04 in the company’s mission numbering system for launcher family operations from the Spaceport.  It will continue the medium-lift vehicle’s mission pace, and follows the VS03 launch on October 12 with a pair of European Galileo navigation satellites; the VS02 flight on December 17, 2011, which carried Pléiades 1A, along with the Chilean SSOT civilian/defense imaging satellite and four French ELISA micro-satellites for defense electronic intelligence gathering: and the historic VS01 maiden liftoff of Soyuz from French Guiana on October 21, 2011 with two Galileo spacecraft.

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12 novembre 2012 1 12 /11 /novembre /2012 17:35

http://www.cesa.air.defense.gouv.fr/IMG/jpg/Icono_espace.jpg

 

09.11.2012 CESA

Aujourd’hui, les centres d’expertise spatiale dénombrent plus de 400 000 objets de taille supérieure à un centimètre, gravitant autour de la Terre. Environ 16 000 seulement sont catalogués. Hormis 600 satellites actifs, tous ces objets intègrent la catégorie des débris spatiaux. L’augmentation exponentielle de leur nombre devenu critique, met sérieusement en danger la sécurité des satellites, notamment ceux présents en orbite basse. Outre les débris spatiaux, il existe une autre source d’insécurité potentielle qui est celle de l’activité offensive d’un État contre des moyens spatiaux, notamment par le déploiement d’armes dirigées contre des cibles spatiales (des satellites pour l’essentiel).

 

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5 novembre 2012 1 05 /11 /novembre /2012 12:30

http://upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Space_and_Missile_Systems_Center.png/608px-Space_and_Missile_Systems_Center.png

 

November 1, 2012. David Pugliese - Defence Watch

 

The purchase of Space Systems/Loral By MDA of Richmond is, from what I understand, still winding its way through the U.S. system. Space Systems/Loral just released this press release:

 

Space Systems/Loral (SS/L) (NASDAQ: LORL), the world’s leading provider of commercial satellites, today announced that it was selected by the U.S. Air Force Space and Missile Systems Center (SMC) to develop affordable design concepts for next generation Protected Military Satellite Communications (MILSATCOM).

 

SS/L has a long history of successfully delivering timely and affordable high-performance commercial satellite systems. As a prime contractor leading several protected communications system and technology domain expert companies, SS/L is well-positioned to provide proven solutions with shorter schedules and lower, better controlled cost, to defend against growing and changing intentional jamming and cyber threats and to deliver advanced communications capability to the warfighter.

 

In today’s cost-conscious environment, the objective of the SMC program is to develop practical new architectures and technologies that will protect increasingly contested and threatened high security communications. Space Systems/Loral will combine its expertise and existing technologies from commercial developments together with existing military technologies provided by a team of domain experts to assess options for both space and ground segment design.

 

“The protected MILSATCOM contract is an opportunity for SS/L to continue its efforts to serve the U.S. Government with cost-effective solutions based on commercial market innovation,” said John Celli, president of SS/L. “Working with our industry partners, we will use domain expertise, proven military technology, and our supply chain efficiencies to quickly bring increased capability to the warfighter.”

 

The SS/L business is based on addressing changing requirements in mobile communications, broadband, and high definition video broadcasting within the budget and schedule constraints of the commercial marketplace. For the SMC’s Protected MILSATCOM program, SS/L will help remedy existing gaps in the space communications layer and demonstrate specific design concepts focused on improved life-cycle affordability that will meet the warfighter needs far into the future.

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30 octobre 2012 2 30 /10 /octobre /2012 11:55

http://upload.wikimedia.org/wikipedia/commons/thumb/9/94/Air_Force_Space_Command_Logo.svg/294px-Air_Force_Space_Command_Logo.svg.png

 

Oct 29, 2012 Satcom Frontier(SPX)

 

Bethesda, MD - Air Force Magazine has published an excellent article in their October 2012 edition. Titled "Game Changers in Space," the piece is based on an address given by General William L. Shelton, head of Air Force Space Command, to the National Space Symposium earlier this year.

 

In his address General Shelton talked about how new realities are forcing a re-evaluation of the next generation of military satellite constellations:

 

"Gen. William L. Shelton, head of Air Force Space Command, told the National Space Symposium in Colorado Springs, Colo., that some next generation military constellations could well feature small and relatively simple satellites. He said some defense payloads could be sent aloft on commercial spacecraft.

 

This recalibration, if it continues, could prove to be one of the biggest changes for USAF since it got into satellite work in the 1950s.

 

The movement reflects two realities. The first is the certainty of a shrinking budget. Experts say the Air Force can no longer afford sufficient numbers of the highly advanced systems and must find alternatives. The second is the undeniable and growing physical threat posed to US orbital vehicles, which are valuable, undefended-and few. Lower-cost systems could provide safety in numbers."

 

The specific new approach cited in the story is continuing to explore more use of hosted payloads, in which military payloads are put onto commercial satellites. Hosted payloads could greatly reduce the cost of new satellite assets and assist in what the article refers to as "disaggregation" - protecting military assets in space by dispersing them more broadly.

 

The CHIRP program is mentioned as a success story that validates the hosted payload approach. By "hitching a ride" aboard commercial launches, military assets can be deployed very quickly. In fact, the CHIRP program went from initiation to launch in 39 months, unheard of speed in military satellite procurement.

 

So what's holding back more hosted payload projects? Intelsat General President Kay Sears has talked about some being in a "hunkered down" state of mind as they grapple with the new budgetary realities. In this article, Retired Lt. General Brian A. Arnold is quoted as saying that the opposition comes from "fear, habit and inertia."

 

Time seems to be on the side of change however. The Space and Missile Systems Center (SMC) has established a Hosted Payload office. And the SMC commander, Lt. General Ellen M. Pawlikowski, is quoted as saying:

 

"My message today is that we see hosted payloads as a key part of our future architectures, and we are this year, in 2012, moving out to have some real directed activities."

 

Here's to those efforts leading to more successes like CHIRP in the near future.

 

Related Article: Game Changers in Space

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