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LAUNCH PAD
Saab Ericsson Space To Equip More Ariane 5 Launchers

The ConeXpress platform fits into unused space aboard Ariane 5 (pictured) filling the capacity after accommodation of its primary satellite payloads for launch into GTO, or dedicated orbits for science missions. Image credit: ESA
by Staff Writers
 Gothenburg, Sweden (SPX) May 12, 2006
 Saab Ericsson Space announced Thursday it has contracted to produce guidance computers and telemetry antennas for 25 Ariane 5 heavy-lift rockets. Every Ariane launcher from the onset of the program has used Saab Ericsson Space guidance computers, the company said in a statement.

Every Ariane 5 launcher carries two redundant computers that work side-by-side in case suffers a non-correctible failure during flight.

Computer system fault tolerance is SES's specialty, the statement said. Each of the new computers will have both hardware and software fault tolerance built in, and SES continues to develop the technology in collaboration Chalmers, a local technical university in Gothenburg.

SES also manufactures antennas that transmit telemetry during flight. Most of the launches are served by two antennas, but sometimes four antennas are used if larger amounts of telemetry are requested.

"Most space programs do not offer volume production," said Jan Persson, SES's Ariane project manager. "We benefit a lot from this, even if prices in the Ariane program are under strong pressure."

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LAUNCH PAD
Sea Launch Contracts To Launch EchoStar XI
 Long Beach CA (SPX) May 12, 2006
 Sea Launch announced Monday it has signed a firm contract with EchoStar Communications to launch the EchoStar XI Direct Broadcast Satellite in 2007. Sea Launch has placed two previous EchoStar satellites in orbit: EchoStar IX in August 2003 and EchoStar X in February 2006.






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