BSAT-1a

BSAT-1a
Mission type Communications
Operator BSAT
COSPAR ID 1997-016B
SATCAT № 24769
Spacecraft properties
Bus HS-376
Manufacturer Hughes
Launch mass 1,236 kilograms (2,725 lb)
BOL mass 723 kilograms (1,594 lb)
Power 1,200 watts[1]
Start of mission
Launch date 16 April 1997, 23:08:44 (1997-04-16UTC23:08:44Z) UTC[2]
Rocket Ariane 44LP
Launch site Kourou ELA-2
Contractor Arianespace
End of mission
Disposal Decommissioned
Deactivated 3 August 2010 (2010-08-04)[3]
Orbital parameters
Reference system Geocentric
Regime Geostationary
Longitude 110° east
Perigee 36,097 kilometres (22,430 mi)
Apogee 36,140 kilometres (22,460 mi)
Inclination 3.33 degrees
Period 24.21 hours
Epoch 11 November 2014, 19:05:02 UTC[4]

BSAT-1a was a Japanese communications satellite operated by the Broadcasting Satellite System Corporation. Launched in 1997 it was operated in geostationary orbit at a longitude of 110° east until its decommissioning on 3 August 2010.[3] The spacecraft has the International Designator 1997-016B and the catalogue number 24769.[5]

Constructed by Hughes, BSAT-1a was built around the HS-376 satellite bus. It had a mass at launch of 723.0 kilograms (1,593.9 lb) and was designed for ten years of service.[6] The spacecraft's communications payload consisted of eight ku-band transponders; four primary and four backup; which were used for analogue television broadcasting.[6][1]

The spacecraft was launched by Arianespace, atop a Ariane 44LP, flight number V95, flying from ELA-2 at Kourou. The launch took place at 23:08:44 UTC on 16 April 1997, successfully placing BSAT-1a and Thaicom 3 into a geostationary transfer orbit.[2] The satellite subsequently manoeuvred into its operational geostationary orbit by means of its Star 30BP apogee motor.


References

  1. 1.0 1.1 "BSAT 1A". National Space Science Data Center. Retrieved 16 November 2014.
  2. 2.0 2.1 McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 16 November 2014.
  3. 3.0 3.1 McDowell, Jonathan. "Geostationary Orbit Catalog". Retrieved 16 November 2014.
  4. "BSAT-1A Satellite details 1997-016B NORAD 24769". N2YO. 11 November 2014. Retrieved 16 November 2014.
  5. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 16 November 2014.
  6. 6.0 6.1 Krebs, Gunter. "BSat 1a, 1b". Gunter's Space Page. Retrieved 16 November 2014.
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