Summary
BSAT-4b, is a geostationary communications satellite ordered by Broadcasting Satellite System Corporation and designed and manufactured by SSL of Maxar Technologies on the SSL 1300 platform. It is expected to be stationed on the 110.0° East orbital latitude for direct television broadcasting of 4K and 8K Ultra HD television resolutions.[2][3]
| Mission type | Direct-to-Home TV services |
|---|---|
| Operator | B-SAT |
| COSPAR ID | 2020-056A |
| SATCAT no. | 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 | 24 Ku-band |
Satellite description edit
BSAT-4b was designed and manufactured by SSL, a subsidiary of Maxar Technologies, on the SSL 1300 satellite bus for Broadcasting 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 single Ku-band payload with 24 transponders. It will cover Japan with 4K and 8K Ultra HD television satellite service.[2]
History edit
On 24 March 2018, B-SAT ordered the second of its fourth generation satellite from SSL, BSAT-4b. It was expected to be weight around 3,530 kilograms (7,780 lb), have 24 Ku-band transponders 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 to BSAT-4a, and enter service before the Tokyo 2020 Olympics.[3]
On 19 April 2018, Arianespace was contracted for an Ariane 5 ECA launch service.[3] On 1 July 2020, the satellite was delivered to French Guiana inside a container supplied by RUAG Space[5][6]
Launch edit
The satellite was launched on 15 August 2020 at 22:04 UTC.[1]
References edit
- ^ a b Debuting upgrades, Ariane 5 rocket deploys three U.S.-built satellites in orbit
- ^ a b c d Krebs, Gunter Dirk. "BSat 4a, 4b". Gunter's Space Page. Retrieved 3 August 2020.
- ^ a b c d e "Arianespace to launch BSAT-4b; marking the 10th satellite launch for B-SAT". 19 April 2018. Retrieved 17 August 2020.
- ^ a b "放送衛星BSAT-4bの調達について" [About the procurement of broadcast satellite BSAT-4b] (PDF) (in Japanese). Broadcasting Satellite System Corporation. 26 March 2018. Retrieved 17 August 2020.
- ^ "BSAT-4b is delivered to French Guiana for Arianespace's upcoming Ariane 5 mission". 2 July 2020. Retrieved 17 August 2020.
- ^ "RUAG Space enables safe transport of Japanese broadcasting satellite for Maxar Technologies". SpaceRef. 24 July 2020. Retrieved 17 August 2020.[permanent dead link]