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BSat 3a, 3b

BSat 3a [LMSS]

In 2005 Lockheed Martin was selected to build the third generation of Broadcasting Satellite System Corporation's satellites. Designated BSAT-3a, the 1.8-kW satellite will provide direct broadcast services throughout Japan following its scheduled launch the second quarter of 2007.

BSAT-3a will comprise 12 130 W Ku-band channels (8 operating at one time) and will be located at 110 degrees East longitude. With a design life of over 13 years, BSAT-3a is based on the award-winning A2100A platform manufactured by Lockheed Martin Commercial Space Systems (LMCSS), Newtown, Pa. BSAT-3a marks the 12th Lockheed Martin satellite ordered in the 1- to 4-kW small-class satellite range.

In April 2008 a second spacecraft called BSat-3b was ordered for a launch in 2010.

Nation: Japan
Type / Application: Communication
Operator: Broadcasting Satellite System Corporation (B-SAT)
Contractors: Lockheed Martin
Equipment: 12 Ku-band transponders (130W)
Configuration: A2100A
Propulsion: LEROS-1C
Power: 2 deployable solar arrays, batteries
Lifetime: 13 years (#3a); 15 years (#3b)
Mass: 1967 kg (#3a); 2060 kg (#3b)
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
BSat 3a 2007-036B 14.08.2007 Ko ELA-3 Ariane-5ECA with Spaceway 3
BSat 3b 2010-056B 28.10.2010 Ko ELA-3 Ariane-5ECA with Eutelsat W3B
Further BSat missions: