BSAT-4a
| Mission type | Communication |
|---|---|
| Operator | B-SAT |
| Website | B-SAT (Japanese) |
| Spacecraft properties | |
| Spacecraft | BSAT-4a |
| Bus | SSL 1300 |
| Manufacturer | SSL |
| Launch mass | 3.5 t (3.4 long tons; 3.9 short tons) |
| Start of mission | |
| Launch date | late 2017 (Planned) |
| Rocket | Ariane 5 ECA |
| Launch site | Guiana Space Center ELA-3 |
| Contractor | Arianespace |
| Orbital parameters | |
| Regime | GEO |
| Longitude | 110° East (Planned) |
| Transponders | |
| Band | 24 Ku band |
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BSAT-4a, is a geostationary communications satellite ordered by B-SAT and designed and manufactured by SSL on the SSL 1300 platform. It is expected to be stationed on the 110° East orbital slot for direct television broadcasting of 4K and 8K Ultra HD resolutions.
BSAT-4a was designed and manufactured by SSL on the SSL 1300 satellite bus for B-SAT. It has an estimated launch mass of 3.5 t (3.9 tons) with a 15-year design life.
It will have a single Ku band payload with 24 transponders. It will cover Japan with 4K and 8K Ultra HD television satellite service.
On June 18, 2015, B-SAT ordered the first of its fourth generation satellites from SSL, BSAT-4a. It was expected to be weight around 3.5 t (3.9 tons), have 24 Ku band transponders with a 15-year design life. At the time it was expected for a late 2017 launch. It was planned, too, that commercial broadcasting of 4K and 8K signals would begin, and have full broadcast of Tokyo 2020 Olympics with that resolution.
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