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jueves, 31 de enero de 2013

NASA - NASA Launches Next-Generation Communications Satellite

TDRS-K Heads for Space Aboard Atlas V

 http://www.nasa.gov/images/content/723618main_tdrsk_launch720.jpg
Image above: The Atlas V rocket with the TDRS-K spacecraft aboard at the launch pad at Cape Canaveral Air Force Station in Florida. Photo credit: NASA
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The Tracking and Data Relay Satellite project, known as TDRS, provides follow-on and replacement spacecraft necessary to maintain and expand the NASA Space Network. TDRS-K, as the newest satellite is called, launched Jan. 30. TDRS-K is the first of three next-generation satellites designed to ensure vital operational continuity for NASA by expanding the lifespan of the fleet. Each of the new satellites has a higher performance solar panel design to provide more spacecraft power. This upgrade will return signal processing for the S-Band multiple access service to the ground -- the same as the first-generation TDRS spacecraft. Ground-based processing allows TDRS to service more customers with different and evolving communication requirements.

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 NASA Launches Next-Generation Communications Satellite
 
 
CAPE CANAVERAL, Fla. -- The first of NASA's three next-generation Tracking and Data Relay Satellites (TDRS), known as TDRS-K, launched at 8:48 p.m. EST Wednesday from Cape Canaveral Air Force Station in Florida.

"TDRS-K bolsters our network of satellites that provides essential communications to support space exploration," said Badri Younes, deputy associate administrator for Space Communications and Navigation at NASA Headquarters in Washington. "It will improve the overall health and longevity of our system."

The TDRS system provides tracking, telemetry, command and high-bandwidth data return services for numerous science and human exploration missions orbiting Earth. These include the International Space Station and NASA's Hubble Space Telescope.

"With this launch, NASA has begun the replenishment of our aging space network," said Jeffrey Gramling, TDRS project manager. "This addition to our current fleet of seven will provide even greater capabilities to a network that has become key to enabling many of NASA's scientific discoveries."

TDRS-K was lifted into orbit aboard a United Launch Alliance Atlas V rocket from Space Launch Complex-41. After a three-month test phase, NASA will accept the spacecraft for additional evaluation before putting the satellite into service.

The TDRS-K spacecraft includes several modifications from older satellites in the TDRS system, including redesigned telecommunications payload electronics and a high-performance solar panel designed for more spacecraft power to meet growing S-band requirements. Another significant design change, the return to ground-based processing of data, will allow the system to service more customers with evolving communication requirements.

The next TDRS spacecraft, TDRS-L, is scheduled for launch in 2014. TDRS-M's manufacturing process will be completed in 2015.

NASA's Space Communications and Navigation Program, part of the Human Exploration and Operations Mission Directorate at the agency's Headquarters in Washington, is responsible for the space network. The TDRS Project Office at NASA's Goddard Space Flight Center in Greenbelt, Md., manages the TDRS development program. Launch services were provided by United Launch Alliance. NASA's Launch Services Program at the Kennedy Space Center was responsible for acquisition of launch services.

For more information about TDRS, visit:
 NASA
Guillermo Gonzalo Sánchez Achutegui
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