Launch Updates - Analytical Graphics, Inc.

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New Launch: 2012 February 14, 1936 UTC
Site: Baikonur Cosmodrome, Kazakhstan
Launcher: Proton-M
International Designator(s): 2012-007A
SSC Name Owner
38087 SES-4 US

"The Breeze M upper stage has accomplished its job, carrying SES 4 into geosynchronous transfer orbit and deploying the satellite tonight.

"SES 4 begins a multi-decade life of serving telecommunications across the Americas, Europe, Africa and the Middle East. It becomes the largest, most powerful craft in the 50-satellite fleet operated by the SES firm of Luxembourg."

"Built by Space Systems/Loral with a launch weight of 13,625 pounds [6,180 kg], the SES 4 is a true powerhouse satellite outfitted with 52 C-band and 72 Ku-band transponders to serve the Americas, Europe, Africa and the Middle East.

"Once operational in geostationary orbit above the equatorial Atlantic at 22 degrees West longitude (338 degrees East), SES 4 will replace the aging NSS 7 spacecraft originally deployed by an Ariane 4 rocket in 2002, which will slide eastward by 2 degrees and operate from that new location for its continued life."

"The C-band beams from SES will be directed to full coverage of the Americas, plus the eastern hemisphere of Europe and Africa, and a broad beam from the spacecraft's point-of-view will support mobile and maritime customers.

"In the Ku-band frequency, the craft is equipped with four high-power, regional beams aimed at Europe, the Middle East, West Africa as well as North and South America.

"SES 4 also has the capability of onboard channel switching between C- and Ku-band transponders."

"With the spacecraft now flying its in launch orbit, SES 4 must use its onboard engine over the next several days to reach a circular geostationary orbit 22,300 miles [35,888 km] above the planet where it can match Earth's rotation and appear fixed along the equator at 22 degrees West longitude."

Source: Spaceflight Now, "SES-4 Mission Status Center"

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