BSAT-1a

BSAT-1a
Spacecraft properties

Mission type	Communications
Operator	BSAT
COSPAR ID	1997-016B
SATCAT №	24769

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

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

BSAT satellites

1a 1b 2a 2b 2c 3a 3b 3c

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Payloads are separated by bullets ( · ), launches by pipes ( \| ). Manned flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets.