| Mission type | Direct-to-Home TV services |
|---|---|
| Operator | B-SAT |
| COSPAR ID | 2020-056A |
| SATCATno. | 46112 |
| Website | B-SAT (Japanese) |
| Mission duration | 15 years (planned) |
| Spacecraft properties | |
| Spacecraft | BSAT-4b |
| Bus | SSL 1300 |
| Manufacturer | Maxar Technologies |
| Launch mass | 3530 kg |
| Start of mission | |
| Launch date | 15 August 2020, 22:04 UTC[1] |
| Rocket | Ariane 5 ECA |
| Launch site | Guiana Space Center,ELA-3 |
| Contractor | Arianespace |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Geostationary orbit |
| Longitude | 110.0° East |
| Transponders | |
| Band | 24Ku-band |
← BSAT-4a | |
BSAT-4b, is ageostationarycommunications satellite ordered byBroadcasting Satellite System Corporation and designed and manufactured bySSL ofMaxar Technologies on theSSL 1300 platform. It is expected to be stationed on the 110.0° Eastorbital latitude fordirect television broadcasting of4K and8KUltra HD television resolutions.[2][3]
BSAT-4b was designed and manufactured bySSL, a subsidiary ofMaxar Technologies, on theSSL 1300satellite bus forBroadcasting Satellite System Corporation. It has an estimated launch mass of 3,530 kilograms (7,780 lb) with a 15-year design life.[2][3][4]
It will have a singleKu-band payload with 24transponders. It will cover Japan with4K and8KUltra HDtelevision satellite service.[2]
On 24 March 2018,B-SAT ordered the second of its fourth generation satellite fromSSL,BSAT-4b. It was expected to be weight around 3,530 kilograms (7,780 lb), have 24Ku-bandtransponders with a 15-year design life. At the time, it was expected for a launch in June 2020.[2][3][4] It was to serve as an backup toBSAT-4a, and enter service before theTokyo 2020 Olympics.[3]
On 19 April 2018,Arianespace was contracted for anAriane 5 ECA launch service.[3] On 1 July 2020, the satellite was delivered to French Guiana inside a container supplied byRUAG Space[5][6]
The satellite was launched on 15 August 2020 at 22:04 UTC.[1]
