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Updated: July 8th, 2008 05:26 PM CDT

Lockheed Martin-Built SIRIUS 4 Launched Successfully From Baikonur Cosmodrome

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"We are very proud and satisfied that the SIRIUS 4 mission has been asuccess," said Hakan Sjodin, Managing Director of SES SIRIUS. "SIRIUS 4 willbenefit our customers and extend our coverage and service in Eastern Europe .The success of the SIRIUS 4 mission is a milestone in our company's history,and we would like to underline the very good cooperation with our launchpartners, International Launch Services and Lockheed Martin Commercial SpaceSystems."

The Lockheed Martin A2100 geosynchronous spacecraft series is designed tomeet a wide variety of telecommunications needs including Ka-band broadbandand broadcast services, fixed satellite services in C-band and Ku-band, high-power direct broadcast services using the Ku-band frequency spectrum andmobile satellite services using UHF, L-band, and S-band payloads. The A2100'smodular design features a reduction in parts, simplified construction,increased on-orbit reliability and reduced weight and cost.

The A2100 spacecraft's design accommodates a large range of communicationpayloads. This design modularity also enables the A2100 spacecraft to beconfigured for missions other than communication. The A2100 design iscurrently being adapted for geostationary earth orbit (GEO)-based earthobserving missions and is currently the baselined platform for LockheedMartin's Geostationary Operational Environmental Satellite Series-R (GOES-R)proposal. The A2100 also serves as the platform for critical governmentcommunications programs including Advanced Extremely High Frequency and MobileUser Objective System and is the foundation for Lockheed Martin'sTransformational Satellite Communications System (TSAT) offering.

About SES SIRIUS AB

SES SIRIUS AB owns and operates the SIRIUS satellite system (SIRIUS 2 and3). SIRIUS is a leading satellite system in the Nordic countries, the BalticStates and Central and Eastern Europe . It offers cost-effective solutions forTV and radio broadcasts and broadband services in these regions. The SIRIUSsatellites are positioned at 5 degrees East and offer reliable communicationlinks across Europe .

SES SIRIUS AB is 75-percent owned by SES ASTRA, one of the world's leadingsatellite operators and 25-percent by the state-owned company Swedish SpaceCorporation.


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