BSAT-4b
| 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-4b,is ageostationarycommunications satelliteordered byBroadcasting Satellite System Corporationand designed and manufactured bySSLofMaxar Technologieson theSSL 1300platform. It is expected to be stationed on the 110.0° Eastorbital latitudefordirect television broadcastingof4Kand8KUltra HD televisionresolutions.[2][3]
Satellite description
[edit]BSAT-4bwas designed and manufactured bySSL,a subsidiary ofMaxar Technologies,on theSSL 1300satellite busforBroadcasting 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-bandpayload with 24transponders.It will cover Japan with4Kand8KUltra HDtelevision satellite service.[2]
History
[edit]On 24 March 2018,B-SATordered 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-bandtransponderswith 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,Arianespacewas contracted for anAriane 5 ECAlaunch service.[3]On 1 July 2020, the satellite was delivered to French Guiana inside a container supplied byRUAG Space[5][6]
Launch
[edit]The satellite was launched on 15 August 2020 at 22:04 UTC.[1]
References
[edit]
- ^abDebuting upgrades, Ariane 5 rocket deploys three U.S.-built satellites in orbit
- ^abcdKrebs, Gunter Dirk."BSat 4a, 4b".Gunter's Space Page.Retrieved3 August2020.
- ^abcde"Arianespace to launch BSAT-4b; marking the 10th satellite launch for B-SAT".19 April 2018.Retrieved17 August2020.
- ^ab"Truyền vệ tinh BSAT-4b の điều đạt について"[About the procurement of broadcast satellite BSAT-4b](PDF)(in Japanese).Broadcasting Satellite System Corporation.26 March 2018.Retrieved17 August2020.
- ^"BSAT-4b is delivered to French Guiana for Arianespace's upcoming Ariane 5 mission".2 July 2020.Retrieved17 August2020.
- ^"RUAG Space enables safe transport of Japanese broadcasting satellite for Maxar Technologies".SpaceRef. 24 July 2020.Retrieved17 August2020.[permanent dead link]