Orbital Optus D3 User Manual
GEO
Communications
Optus D3
Ku-band Commercial Communications Satellite
FACTS AT A GLANCE
Mission Description
Built for Australia-based Optus Networks Pty Limited, Optus D3 provides Ku-band xed
communications and direct television broadcasting services to Australia and New Zealand.
The Orbital-built satellite is providing further market expansion at the same orbital slot as the Optus C1
satellite which was launched in 2003 and is located at 156 degrees East Longitude. Optus D3 carries
24 active Ku-band transponders and generates approximately 5.0 kilowatts of payload power.
The GEOStar™ Advantage
Orbital’s highly successful Geosynchronous Earth Orbit (GEO) communications satellites are based on
the company’s GEOStar spacecraft platform, which is able to accommodate all types of commercial
communications payloads and is compatible with all major commercial launchers. The company’s
GEOStar product line includes the GEOStar-2 design, which is optimized for smaller satellite missions
that can support up to 5.0 kilowatts of payload power. Orbital has also developed the higher-power
GEOStar-3 spacecraft design, delivering the next increment of payload power for applications between
5.0 and 8.0 kilowatts, allowing Orbital to offer its innovative and reliable satellite design to the
medium-class of communications satellites.
Coverage:
Australia and New Zealand
Mission:
Ku-band xed communications and
direct television
Customer:
Optus Networks, Pty.
Optus D3 in Orbital's Dulles, Virginia satellite
manufacturing facility
Optus D3
Specications
Spacecraft
Launch Mass: 2,500 kg (5,500 lb.)
Solar Arrays: Four panels per array, UTJ Gallium
Arsenide cells
Stabilization: 3-axis stabilized; zero momentum system
Propulsion: Liquid bi-propellant transfer orbit system;
monopropellant (hydrazine) on-orbit system
Batteries: Two 5140 W-Hr capacity Li-Ion batteries (BOL)
Mission Life: 15 years
Orbit: 156
Payload
Ku-band
Repeater: 24 active transponders with 28-for-24 125 W
Payload Power: 5.0 kW
Antenna: Two 2.3 m dual grid shaped deployable
Launch
Launch Vehicle: Ariane 5
Site: Kourou, French Guiana
Date: August 21, 2009
°
East Longitude
TWTAs (primary transponders); 10-for-8 44
W TWTAs (backup transponders)
reectors
Mission Partners
Optus of Australia
A leader in providing integrated communications in Australia
Orbital Sciences Corporation
Prime contractor for three Optus Ku-band satellites
Arianespace
Launch provider
Coverage Contour Maps
Australia Antenna Pattern
New Zealand Antenna Pattern
Orbital Sciences Corporation
45101 Warp Drive
©2014 Orbital Sciences Corporation FS004_07_2998
•
Dulles, Virginia 20166
•
www.orbital.com
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