It was originally built and launched as Brasilsat B4 for Embratel, and was later transferred to Embratel's subsidiary Star One and renamed. Following its launch it raised itself into geostationary orbit by means of its onboard R-4Dapogee motor, and was positioned at 75° West for on-orbit testing. This was completed in September 2000, and it was moved to 92° West, arriving in October. It remained at that position until January 2007 when it was relocated to 70° West. It arrived on station in February, and subsequently departed in June 2008. In July 2008 it arrived at 84° West, where it is currently stationed. It carries twenty eight transponders, and has an expected on-orbit lifespan of 12 years. It initially replaced the Brasilsat A2 satellite.
star, originally, designated, brasilsat, brazilian, communications, satellite, which, operated, star, constructed, hughes, space, communications, company, based, 376w, satellite, penultimate, final, 376w, launched, launch, contracted, arianespace, using, arian. Star One B4 originally designated Brasilsat B4 is a Brazilian communications satellite which is operated by Star One It was constructed by the Hughes Space and Communications Company and is based on the HS 376W satellite bus It was the penultimate HS 376 and final HS 376W to be launched Its launch was contracted by Arianespace using an Ariane 4 44LP 3 carrier rocket The launch occurred at 23 16 GMT on 17 August 2000 from the ELA 2 launch pad at the Guiana Space Centre The Nilesat 102 satellite was launched on the same rocket Star One B4Mission typeCommunicationOperatorEmbratelStar OneCOSPAR ID2000 046ASATCAT no 26469Mission duration12 yearsSpacecraft propertiesBusHS 376WManufacturerHughesLaunch mass2 495 kilograms 5 501 lb Dry mass1 757 kilograms 3 874 lb Start of missionLaunch date17 August 2000 2000 08 17 23 16 00 UTCRocketAriane 44LP 3Launch siteKourou ELA 2ContractorArianespaceEnd of missionDeactivatedJune 2021 2021 07 Orbital parametersReference systemGeocentricRegimeGeostationaryLongitude75 West 92 West 70 West 84 WestSemi major axis42 165 0 kilometres 26 200 1 mi Perigee altitude35 782 3 kilometres 22 234 1 mi Apogee altitude35 806 1 kilometres 22 248 9 mi Inclination1 Period1 436 1 minutesTranspondersBand28 IEEE C band NATO G H band It was originally built and launched as Brasilsat B4 for Embratel and was later transferred to Embratel s subsidiary Star One and renamed Following its launch it raised itself into geostationary orbit by means of its onboard R 4D apogee motor and was positioned at 75 West for on orbit testing This was completed in September 2000 and it was moved to 92 West arriving in October It remained at that position until January 2007 when it was relocated to 70 West It arrived on station in February and subsequently departed in June 2008 In July 2008 it arrived at 84 West where it is currently stationed It carries twenty eight transponders and has an expected on orbit lifespan of 12 years It initially replaced the Brasilsat A2 satellite and the end of satellite Brasilsat B4 was moved to junk orbit in June 2021 1 References edit TSE Brasilsat B4 www tbs satellite com Retrieved 2023 02 11 Krebs Gunter Brasilsat B 1 2 3 4 Star One B 1 2 3 4 Gunter s Space Page Retrieved 2009 05 05 Brasilsat B4 Lyngsat Retrieved 2009 05 05 McDowell Jonathan 2000 08 25 Issue 433 Jonathan s Space Report Archived from the original on 2011 06 08 Retrieved 2009 05 05 nbsp This article about one or more communications satellites is a stub You can help Wikipedia by expanding it vte nbsp This article about one or more spacecraft of Brazil is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Star One B4 amp oldid 1169125934, wikipedia, wiki, book, books, library,
