User Manual

Orbital Sciences Corporation
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©2014 Orbital Sciences Corporation FS008_01_1998
BSAT-2 Series
Mission Partners
Broadcasting Satellite System Corporation (B-SAT)
Tokyo-based company founded by NHK, WOWOW and major
private broadcasters of Japan
Orbital Sciences Corporation
Prime contractor for BSAT-2 system, including in-orbit spacecraft
payload provider and ground control stations
Arianespace
Launch provider
Specications
Spacecraft
Launch Mass: 1,317 kg (2,904 lb.)
Redundancy: Full dual string
Solar Arrays: Silicon panels
Stabilization: 3-axis momentum bias, nadir oriented,
precise pointing
Propulsion: Solid apogee kick motor, redundant liquid
monopropellant system
Mission Life: 10 years (fueled for over 11.5 years)
Orbit: 110
°
East Longitude
Payload
Payload: 4-channel digital TV transmission repeater
Power: 4 of 8 130 W Ku-band conduction-cooled
TWTAs amplify the four selected channels
Antenna: 2.2 m (7.2 ft.) offset focus-shaped reector
Frequency: Ku-band,
Receive signal: 17.3-17.6 GHz,
Transmit signal: 11.7-12.0 GHz
Launch
Launch Vehicle: Ariane 5
Site: Kourou, French Guiana
Date: BSAT-2a: March 8, 2001
BSAT-2b: July 12, 2001*
BSAT-2c: June 11, 2003
The BSAT-2 satellites were
launched aboard Ariane 5
rockets from their launch site
in South America near the
equator.
BSAT-2 Mission Update
The BSAT-2a spacecraft was launched from Kourou, French Guiana, on
March 8, 2001. Following nal test of the communications payload, the
satellite was handed over to the customer on April 25, 2001 as planned.
BSAT-2c was launched from Kourou, French Guiana on June 11,
2003 and was placed in geosynchronous earth orbit at 110 degrees
East Longitude collocated with BSAT-2a. Following the nal test of the
communications payload, the satellite was handed over to the customer
and began commercial operations on July 15, 2003. BSAT-2a acted as an
on-orbit backup to BSAT-2c.
In January 2013, BSAT-2a was deactivated and transitioned to a disposal
orbit. The spacecraft exceeded its mission lifetime by nearly two years.
In August 2013, BSAT-2c was deactivated and transitioned to a disposal
orbit.
* BSAT-2b placed into incorrect orbit by launch vehicle