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13 avril 2011 3 13 /04 /avril /2011 06:00

http://upload.wikimedia.org/wikipedia/en/thumb/0/09/JSpOC_final.jpg/220px-JSpOC_final.jpg

 

 

12 Apr 2011 By DAVE MAJUMDAR Defensenews

 

COLORADO SPRINGS, Colo. - The U.S. Air Force's Joint Space Operations Center (JSpOC) program is facing "structural difficulties," a senior service official said. The JSpOC is envisioned as a command-and-control center that would coordinate space activities for a theater commander. The service stopped issuing requests for proposals for various JSpOC components after an independent review found problems with the program, Air Force Space Command chief Gen. William Shelton told an audience at the National Space Symposium here April 12. "The difficulties we found structurally with the program have caused us to take a pause here and think about our way ahead," Shelton said. The service will announce how it intends to proceed with the JSpOC program in the "next few weeks," he said.

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13 avril 2011 3 13 /04 /avril /2011 06:00
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12 avril 2011 2 12 /04 /avril /2011 12:00

 

PACIFIC MISSILE RANGE FACILITY, Hawaii, April 11, 2011 (GLOBE NEWSWIRE) -- Two recent Ballistic Missile Defense System-wide (BMDS) tests involving the Northrop Grumman Corporation (NYSE:NOC)-built Space Tracking and Surveillance System (STSS) Demonstration satellites showed that the satellite system can successfully perform the ultimate mission for space-based missile defense sensors – full-course, or 'birth-to-death' tracking of a ballistic missile.

 

"This is the first time a space-based sensor has tracked a ballistic missile through all phases of its flight, from launch, through midcourse and re-entry," said Doug Young, vice president, missile defense and warning for Northrop Grumman's Aerospace Systems sector in Redondo Beach, Calif. "This birth-to-death tracking ability optimizes interceptor selection and enables the interceptor to compensate for maneuvering midcourse objects."

 

Young said the success came in two stages. Each time, the test target was an Aegis Readiness Assessment Vehicle. On March 9, one of the STSS satellites acquired and tracked its target until re-entry during a test designed to validate Aegis system software upgrades. The timing of the launch was coordinated between Aegis and STSS to assure visibility of the launch.

 

On March 15, both STSS satellites demonstrated full-course tracking once again during a portion of the U.S. Missile Defense Agency's (MDA) Aegis launch on remote campaign. Both satellites acquired the target through their track sensors and followed the missile through re-entry.

 

During this test, the Ground Mission Data Processing software, operating at the Missile Defense Experimentation Center, successfully produced a "stereo," 3-D track of the missile's flight path, predicting its impact point in advance.

 

"This is missile defense history in the making," said David Bloodgood, the company's STSS program manager. "It's the first time a single set of sensors has followed a missile from launch through re-entry or intercept. Before now, it took a combination of sensors in space, on the ground, in the air and at sea to do what the two STSS demonstrators accomplished by themselves."

 

The STSS Demonstration program plays an integral role in MDA's long-term strategy to field a constellation of precision tracking satellites as a key element of the BMDS. The STSS satellites are demonstrating the feasibility of a space sensor to provide high-precision, real-time tracking of missiles and midcourse objects, enabling simultaneous regional, theater and strategic missile defense.

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11 avril 2011 1 11 /04 /avril /2011 22:30

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source goodrich.com

 

April 11, 2011 defpro.com


CHARLOTTE, N.C. | Goodrich Corporation the prime contractor for the ORS-1 satellite, has successfully completed thermal vacuum testing of ORS-1, the first Operationally Responsive Space satellite designed to support Combatant Command operations. The testing validated spacecraft performance and functionality in an environment duplicating the extreme hot and cold temperatures the satellite will experience in space. It is the latest in a series of tests leading to delivery of the satellite to the launch site. The successful test was conducted at Goodrich's facility in Danbury, Connecticut. According to Andreas Nonnenmacher, Goodrich Space and Defense vice president, "Successful completion of this final environmental test demonstrates the design integrity, the quality of our workmanship and the satellite's readiness to withstand the rigors of launch and space." The ORS-1 satellite will provide battlespace awareness supporting U.S. Central Command's mission needs. Goodrich is the lead systems integrator for the ORS-1 satellite. The payload leverages the Goodrich SYERS-2 multi-spectral sensor, the primary imaging sensor on the U-2 reconnaissance plane. Goodrich is also providing a ground segment that formats the data from the sensor payload to be compatible with the downstream processing, exploitation and dissemination used for the operational SYERS-2 sensor. The ORS-1 spacecraft bus is built for Goodrich by ATK Space Systems and is based on its TacSat-3 bus. It includes an integrated propulsion system as well as other critical subsystems for communications, attitude control, thermal control, command and data handling.

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11 avril 2011 1 11 /04 /avril /2011 11:10

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April 11, 2011: STRATEGY PAGE

 

Without any announcement, an American Lacrosse radar satellite was recently destroyed when ground controllers ordered it to leave orbit and plunge towards the earth (where it burned up during reentry.) This particular Lacrosse bird served for two decades, more than twice as long as it was expected to last. There are now three Lacrosse satellite in orbit, the oldest of them launched in 1997, while the most recent went up in 2005. The first Lacrosse went up in 1988, and was brought down (deorbited/destroyed) in 1997. The Lacrosse birds fly a low orbit (about 700 kilometers up) to facilitate the use of their radar. Because of their large size and low orbit, they can often be seen, under the right light conditions, with the naked eye. For decades, the U.S. has usually had four KH-11s and four Lacrosse radar satellites in orbit, plus several smaller, and more secret birds. Often, these satellites last longer than their design life of eight years (some have gone on for 10-15 years). Eventually they all wear out. The KH-11 and Lacrosse satellites weigh 14-16 tons.

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5 avril 2011 2 05 /04 /avril /2011 06:00
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31 mars 2011 4 31 /03 /mars /2011 20:00
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31 mars 2011 4 31 /03 /mars /2011 06:00

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March 30, 2011 by Loren B. Thompson, Ph.D. / Early Warning Blog, Lexington Institute–DEFPRO.COM

 

Deficit reduction doesn't always mean hard choices. Sometimes it's easy, if politicians are willing to rethink how the government goes about pursuing its goals. Perhaps that's what Pentagon policymakers had in mind when they decided to name a new approach to purchasing satellites EASE. The official name is "Evolutionary Acquisition for Space Efficiency," but the acronym says it all. Budget analysts have figured out a way of saving billions of dollars on space systems without having to give up anything. And unlike initiatives such as the F-35 alternate engine that require up-front investments to save money later, the EASE concept starts saving money right away.

 

It's an amazingly simple idea. All Congress needs to do is agree to buy more than one satellite at a time, and then spread the appropriations out over several budget years. That's not what the government does today. Instead, it buys one costly satellite in a constellation at a time, and then waits years to buy the next one -- even though legislators know they will eventually need to buy several satellites of any given type to complete a constellation. And because satellites are bought one-at-a-time with all the money appropriated in a single year, staffers can't find the money to buy another satellite for years and contractors can't manage their production processes efficiently. So each satellite ends up costing a lot more than it needs to.

 

Here's an example. The Pentagon is buying Advanced Extremely High Frequency (AEHF) communications satellites that will allow warfighters all over the world to communicate securely even in adverse circumstances. That's an essential capability and military planners expect to buy several of the satellites over the coming decade. Now, if Congress buys the next two satellites separately with full funding of each in the year it's requested, the cost for both will be about $4 billion. If it buys them in a "block" (together) and then spaces the money out over several years as EASE proposes, the two satellites will cost $3.1 billion. About $900 million is saved just by doing business differently, without giving anything up. And the same approach can be applied to any other satellite constellation where the government plans to buy more than one satellite of the same design, whether it's for missile warning or weather reports or whatever.

 

You can't really call EASE a breakthrough, because the National Reconnaissance Office has been buying its spy satellites this way for a long time. But most of the military satellites the government buys aren't for spying, and all the other spacecraft are currently being bought one-at-a-time at very high cost. By switching to incremental funding of multi-satellite buys, the government can start saving billions of dollars in fiscal 2012. It can also help military planners and contractors to start thinking more coherently about how to introduce necessary upgrades into later versions of current satellites, since we know constellations like AEHF are going to be operating for decades to come. But the real savings come from being able to use workers and facilities more efficiently, because when the government commits to buying multiple satellites of the same type in a single "block" the work can be sequenced to make sure each employee with specialized skills is working every day, rather than waiting around for the next satellite to be funded.

 

This isn't a budgeting gimmick and there are no catches. Congress can begin saving billions of dollars on military satellites in 2012 without killing any programs or closing any facilities. All it needs to do is agree to what staffers call "advanced appropriations," which is technical language for agreeing to fund satellites over several budget years rather than setting aside all the money in a single year. Once it does that, budgeting for military space will become easier and savings will begin accumulating that can be applied to other purposes such as deficit reduction. Of course, somebody somewhere will probably complain about Congress changing the way it does business. But when you're borrowing $4 billion per day from lenders like China, change is indicated.

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25 mars 2011 5 25 /03 /mars /2011 22:30

 

 

March 25th, 2011 by Missile Defense Advocacy Alliance

 

A pair of low Earth orbiting demonstration satellites built by Northrop Grumman Aerospace Systems for the first time on March 16 detected and tracked a ballistic missile launch through all phases of flight, a Northrop Grumman official said March 22. So-called birth-to-death tracking of a ballistic missile launch had never been done before from space and is the most significant achievement to date for the Space Tracking and Surveillance System (STSS) spacecraft, said Doug Young, Northrop Grumman’s vice president of missile defense and warning programs. “It’s the Holy Grail for missile defense,” Young said during a media briefing here. Los Angeles-based Northrop Grumman built three STSS demonstration satellites for the U.S. Missile Defense Agency (MDA). The first satellite, which had a classified mission, was launched in May 2009. After completing its test program, it was transferred Jan. 31 to the control of Air Force Space Command to continue supporting the service’s space situational awareness mission.

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25 mars 2011 5 25 /03 /mars /2011 22:00
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25 mars 2011 5 25 /03 /mars /2011 19:30

 

25/3/2011 par Jacques Marouani, ElectroniqueS

 

Valérie Pécresse, ministre de l’Enseignement supérieur et de la Recherche, et René Ricol, Commissaire général à l’investissement, viennent de dévoiler les lauréats des appels à projets lancés dans le cadre de l'action Espace du programme "Investissements d’avenir", dotée de 500 millions d'euros. La dotation a été versée au Centre national d’études spatiales (Cnes), agence spatiale française. Cette action comporte un volet satellites (amélioration des développements de satellites à fort enjeu applicatif) et un volet accès à l’espace (préparation de la fusée de nouvelle génération). Concernant le premier volet, trois projets ont été retenus et bénéficieront respectivement de dotations de 170 M€, 42,5 M€ et 40 M€. Concernant le second volet, "Lanceur de nouvelle génération", le président de la République avait d’ores et déjà annoncé un budget de 82,5 M€, en décembre dernier, pour engager les projets d'études et de démonstrateurs. Les résultats obtenus contribueront à la définition des grands choix techniques qui seront faits par l'ESA (Agence spatiale européenne).

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18 mars 2011 5 18 /03 /mars /2011 13:16
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9 mars 2011 3 09 /03 /mars /2011 20:30
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1 mars 2011 2 01 /03 /mars /2011 07:00

MissDefAgcy US

ASDNews: Feb 28, 2011

Operational and administrative control of the Space Tracking and Surveillance System Advanced Technology Risk Reduction (STSS ATRR) satellite has been transferred to Air Force Space Command (AFSPC) effective 31 January 2011. In addition to successfully demonstrating required on orbit system performance parameters for a prototype sensor technology, STSS ATRR has been conducting Space Situational Awareness (SSA) and related operations on an as-capable basis. As an AFSPC system, STSS ATRR will continue operations supporting the Space Situational Awareness (SSA) mission area.

STSS ATRR was launched 5 May 2009 from Vandenberg Air Force Base. STSS ATRR is a small experimental satellite that served as a pathfinder for prototype sensor technology and future MDA space missions.

Source : Missile Defense Agency (MDA)

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28 février 2011 1 28 /02 /février /2011 21:52
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