AsiaSat 1

Last updated

AsiaSat 1
Names Westar 6
Mission type Communications
Operator AsiaSat
COSPAR ID 1990-030A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 20558
Website https://www.asiasat.com
Mission duration9 years (planned)
12.5 years (achieved)
Spacecraft properties
SpacecraftAsiaSat-1
Bus HS-376
Manufacturer Hughes 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
Rocket Long March 3
Launch site Xichang, LA-3
Contractor CGWIC
Entered serviceJune 1990
End of mission
Disposal Graveyard orbit
DeactivatedJanuary 2003
Orbital parameters
Reference system Geocentric orbit
Regime Geostationary orbit
Longitude100.5° East (1990–1999)
122° East (1999–2003)
Transponders
Band24 C-band
Bandwidth36 MHz
Coverage area Asia, Pacific Ocean
AsiaSat 2  
 

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]

Contents

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 by shuttle astronauts 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

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References

  1. 1 2 "AsiaSat". AsiaSat. Archived from the original on 7 July 2011. Retrieved 4 August 2009.
  2. 1 2 3 "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.