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BSat 4a [SSL]
BSat 4a is broadcasting satellite for Broadcasting Satellite System Corporation (B-SAT). The satellite will be used for Direct-to-Home (DTH) television service in Japan.
Space Systems/Loral (SSL) got the contract to build the BSat 4a satellite in June 2015.
BSAT-4a will have 24 Ku-band transponders and will expand the availability of advanced television services such as high definition and 4K/8K ultra-high definition television. BSAT-4a is based on the highly reliable SSL-1300 platform, which provides high power and the flexibility to support a broad range of applications and technology advances. The satellite is designed to provide service for 15 years or more.
A second satellite, BSat 4b was ordered in March 2018.
| Nation: | Japan |
|---|---|
| Type / Application: | Communication |
| Operator: | Broadcasting Satellite System Corporation (B-SAT) |
| Contractors: | Space Systems/Loral (SS/L) (#4a); Maxar Technologies (formerly Space Systems/Loral (SS/L)) (#4b) |
| Equipment: | 24 Ku-band transponders |
| Configuration: | SSL-1300 |
| Propulsion: | ? |
| Power: | 2 deployable solar arrays, batteries |
| Lifetime: | 15 years |
| Mass: | 3520 kg (#1); 3530 kg (#2) |
| Orbit: | GEO |
| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| BSat 4a | 2017-059B | 29.09.2017 | Ko ELA-3 | Ariane-5ECA | with Intelsat 37e | |
| BSat 4b | 2020-056A | 15.08.2020 | Ko ELA-3 | Ariane-5ECA+ | with Galaxy 30, MEV 2 |
Launch Sites:
- Ko = Centre Spatial Guyanais (CSG), Kourou, French Guiana, France
References:
- Space Systems/Loral: SSL Selected to Provide Direct Broadcasting Satellite to B-SAT, 18 June 2015
Further BSat missions:
- BSat 1a, 1b [HS-376]
- BSat 2a, 2b [Star-1]
- BSat 2c [Star-1]
- BSat 3a, 3b [A2100A]
- BSat 3c [A2100A]
- BSat 4a, 4b [SSL-1300]
