Proton Rocket Sends DirecTV Satellite to Orbit

Proton Rocket Sends DirecTV Satellite to Orbit
A Russian Proton rocket launches the DirecTV-12 satellite to orbit from Baikonur Cosmodrome in Kazakhstan on Dec. 28, 2009. (Image credit: Roscosmos (Federal Space Agency))

A new high-definitiontelevision broadcasting satellite was deployed by a Proton rocket earlyTuesday, bolstering DirecTV's programming lineup for customers in the United States.

The DirecTV 12 satellitewas bolted atop the 191-foot-tall booster for liftoff at 0022 GMT Tuesday (7:22p.m. EST Monday) from pad 39 at the Baikonur Cosmodrome in Kazakhstan.

The Proton's three corestages heaved thesatellite and Breeze M propulsion module on a ballistic trajectory lessthan 10 minutes after launch. The Breeze M's main engine ignited two minuteslater to put the spacecraft in a stable parking orbit, according toInternational Launch Services, the U.S.-based launch provider.

Four more Breeze M burnsovernight propelled DirecTV 12 to higher altitudes and reduced the spacecraft'sorbital inclination.

Spacecraft separationoccurred on time at 0932 GMT (4:32 a.m. EST) Tuesday, and ILS declared thecompany's seventh mission of 2009 a success.

The communications payloadweighed about 13,000 pounds at launch, filling nearly all of the Protonrocket's lift capacity. ILS and Russian rocket-builder Khrunichev haveimplemented several recent upgrades to the Proton to give the booster the powerto launch such large satellites, according to McKenna.

"DirecTV placed theirtrust and confidence in ILS two years ago with a very significant launch withthe DirecTV 10 satellite. At that time, it was the largest satellite launchedby Proton, demonstrating the increased capabilities of the vehicle," saidFrank McKenna, ILS president. "Now, with DirecTV 12, DIRECTV once againentrusted their business to us with the continuation of this successfulpartnership. We are very proud to play a significant role in the expansion ofdigital television services in the United States with DirecTV."

The satellite will completeDirecTV's phased expansion of high-definition television service to U.S. households. DirecTV 12 was built by the satellite-manufacturing division of Boeing Co.in El Segundo, Calif.

"DirecTV12 is the third in a line of satellites designed for delivery ofhigh-definition television service to DirecTV's customers throughout thecontinental United States, Alaska and Hawaii," said Steve Schmidt,Boeing's DirecTV 12 program director.

The satellite will join twoidentical spacecraft launched in 2007 and 2008. The trio of satellites wereordered to bolster DirecTV's HDTV offering and continue the company's legacy ofuninterrupted service.

"DirecTV 12 isimportant to us because it's the last of our three original Ka-bandsatellites," said Jim Butterworth, vice president of communicationssystems at DirecTV. "It augments our local channel capability, so we cango to more markets with HD programming. And it also is going to give us thecapability to have more movie choices and other services for ourcustomers."

"DirecTV 12 is the21st in the Boeing 702 line and will provide significant expansion to thealready unprecedented HDTV service that DirecTV provides to itscustomers," Schmidt said.

"We will launch twointermediate satellites on the Proton system to (geosynchronous) transferorbit, and that will create a significant offering in that segment of themarket, in which we have not participated previously, at very affordable pricesand reliability," McKenna said.

Monday night's launch wasthe 10th mission overall for the Proton rocket this year.

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Stephen Clark is the Editor of Spaceflight Now, a web-based publication dedicated to covering rocket launches, human spaceflight and exploration. He joined the Spaceflight Now team in 2009 and previously wrote as a senior reporter with the Daily Texan. You can follow Stephen's latest project at SpaceflightNow.com and on Twitter.