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AsiaSat 1

AsiaSat 1
NamesWestar 6
Mission typeCommunications
OperatorAsiaSat
COSPAR ID1990-030A Edit this at Wikidata
SATCAT no.20558
Websitehttps://www.asiasat.com
Mission duration9 years (planned)
12.5 years (achieved)
Spacecraft properties
SpacecraftAsiaSat-1
BusHS-376
ManufacturerHughes Space and Communications
Launch mass1,244 kg (2,743 lb)
Dry mass620 kg (1,370 lb)
Dimensions2.16 m (7 ft 1 in) diameter
6.6 m (22 ft) height
stowed: 2.84 m (9 ft 4 in)
Power850 watts
Start of mission
Launch date7 April 1990, 13:30:02 UTC
RocketLong March 3
Launch siteXichang, LA-3
ContractorCGWIC
Entered serviceJune 1990
End of mission
DisposalGraveyard orbit
DeactivatedJanuary 2003
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Longitude100.5° East (1990–1999)
122° East (1999–2003)
Transponders
Band24 C-band
Bandwidth36 MHz
Coverage areaAsia, Pacific Ocean

AsiaSat 1 was a Hong Kong communications satellite, which was owned, and was operated, by the Hong Kong–based Asia Satellite Telecommunications Company. It was originally launched in February 1984 as Westar 6, but following a booster motor failure it was retrieved and returned to Earth in November of that year by Space Shuttle mission STS-51-A. After being sold to AsiaSat and refurbished, it was relaunched in April 1990, and positioned in geostationary orbit at a longitude of 100.5° East. It spent its operational life at 100.5° East,[1] from where it was used to provide fixed satellite services, including broadcasting, audio and data transmission, to Asia and the Pacific Ocean.[2]

Westar 6

As Westar 6, the satellite was built by Hughes Space and Communications. It was based on the HS-376 satellite bus. At launch it had a mass of 1,244 kg (2,743 lb),[2] and a design life of thirteen years. It carried twenty four C-band transponders.[1] After launch from the Space Shuttle as part of mission STS-41-B its PAM-D booster rocket misfired, and the satellite was stranded in a useless low orbit. It was retrieved during another Shuttle mission (STS-51-A) in November 1984, and Hughes was contracted to refurbish it. Westar 6 was eventually sold, for US$58 million, to the AsiaSat consortium and renamed AsiaSat 1.[2]

Re-launch

The launch of AsiaSat 1 was contracted to the China Great Wall Industry Corporation (CGWIC), and used a Long March 3 launch vehicle. The launch was conducted from Xichang Launch Area 3 (LA-3) at the Xichang Satellite Launch Centre at 13:30:02 UTC on 7 April 1990.[3]

Mission

Asiasat 1 was replaced by AsiaSat 3S in May 1999. It remains in a graveyard orbit.

See also

  • Palapa B2, a communications satellite that was also retrieved and relaunched by the Space Shuttle

References

  1. ^ a b "AsiaSat". AsiaSat. Archived from the original on 7 July 2011. Retrieved 4 August 2009.
  2. ^ a b c "AsiaSat 1". Gunter's Space Page. 21 July 2019. Retrieved 2 May 2021.
  3. ^ "Launch Log". Jonathan's Space Page. 14 March 2021. Retrieved 2 May 2021.

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