GEO
Communications
Star One C3
Hybrid C-band and Ku-band Commercial Communications Satellite
FACTS AT A GLANCE
Mission Description
The Star One C3 satellite, manufactured for Star One, carries a hybrid payload. The satellite's C-band
payload serves South America. The Ku-band payload serves Brazil and other areas of South America.
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:
Brazil, The Andes and South America
Mission:
C- and Ku-band communications
Customer:
Star One
Star One C3 in Orbital's Dulles, Virginia
satellite manufacturing facility
Star One C3
Specications
Spacecraft
Launch Mass: <3,200 kg (<7,055 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 >4840 W-Hr capacity Li-Ion batteries
Mission Life: ≥15 years
Hybrid Payload
C-band
Repeater: 28 active transponders with two 16-for-14
TWTA interconnected rings
TWTA Power: 48 W RF
Antenna: 2.3 m dual grid deployable reector
Ku-band
Repeater: 16 active transponders with two 10-for-8
TWTA rings
TWTA Power: 140 W RF
Antenna: 2.3 m dual grid deployable reector;
1.4 m deck-mounted
Launch
Launch Vehicle: Ariane 5
Site: Kourou, French Guiana
Date: November 10, 2012
Mission Partners
Star One
An Embratel Company, Star One is Brazil's leading satellite
communications service provider
Orbital Sciences Corporation
Prime contractor
Arianespace
Launch provider
Coverage Contour Maps
C-band Coverage
Ku-band Brazilian Coverage
Orbital Sciences Corporation
45101 Warp Drive
©2014 Orbital Sciences Corporation FS003_10_2998
•
Dulles, Virginia 20166
•
www.orbital.com
Ku-band Andean Coverage
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