Английская Википедия:BSAT-4a

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Шаблон:Use British English Шаблон:Use dmy dates Шаблон:Infobox spaceflight BSAT-4a is a geostationary communications satellite ordered by Broadcasting Satellite System Corporation (BSAT) and designed and manufactured by SSL on the SSL 1300 platform, to be stationed on the 110.0° East orbital slot for direct television broadcasting of 4K and 8K Ultra HD resolutions.[1][2][3] It was launched on 29 September 2017.[4]

Satellite description

BSAT-4a was designed and manufactured by SSL on the SSL 1300 satellite bus for BSAT. It has an estimated launch mass of Шаблон:Convert with a 15-year design life.[1][5][3]

It has a single Ku-band payload with 24 transponders, and covers Japan with 4K and 8K Ultra HD television satellite service.[1][2]

History

On 18 June 2015, BSAT ordered the first of its fourth generation satellites from SSL, BSAT-4a. It was expected to be weight around Шаблон:Convert, have 24 Ku-band transponders with a 15-year design life. It was launched on 29 September 2017.[6] It was planned that 4K and 8K signals would be broadcast by summer 2020.[2]

In September 2015, BSAT contracted Arianespace for an Ariane 5 ECA launch service,[3][1]and received a preliminary license for broadcasting 4K and 8K Ultra HD.[7]

References

Шаблон:Portal Шаблон:Reflist Шаблон:BSAT satellites Шаблон:Orbital launches in 2017

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  4. Шаблон:Cite web
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