GEO
Communications
Intelsat 28
Hybrid C-band and Ku-band Commercial Communications Satellite for Intelsat
FACTS AT A GLANCE
Mission Description
The Intelsat 28 spacecraft (previously named Intelsat New Dawn), built for Intelsat and Convergence
Partners, carries 16 Ku- and 14 C-band active transponders to provide voice, wireless backhaul,
internet, and media applications services. The satellite, located at 32.9 degrees East Longitude,
provides communications services to Europe, the Middle East, Africa and Sub-Saharan regions.
GEOStar™ Satellites for Intelsat
Intelsat 28 is one of ten Orbital GEOStar communications satellites ordered by Intelsat.
• Galaxy 12
• Galaxy 14
• Galaxy 15
• Horizons-2
• Intelsat 11
• Intelsat 15
• Intelsat 16
• Intelsat 18
• Intelsat 23
• Intelsat 28
Coverage:
Europe, the Middle East, Africa and
Sub-Saharan regions
Mission:
C- and Ku-band communications
Customer:
Intelsat
Convergence Partners
Intelsat 28 in Orbital's Dulles, Virginia satellite
manufacturing facility
Intelsat 28
Specications
Spacecraft
Launch Mass: 3,000 kg (6,614 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
Orbit: 32.9
Hybrid Payload
C-band
Repeater: 14 active transponders with two groups of
Antenna: 2.5 x 2.7 m single shell super-elliptical
Ku-band
Repeater: 16 active transponders with two groups of
Antenna: 2.5 x 2.7 m single shell deployable reector
Launch
Launch Vehicle: Ariane 5
Site: Kourou, French Guiana
Date: April 22, 2011
°
East Longitude
10-for-7 redundant TWTAs
deployable reector
11-for-8 TWTAs
Mission Partners
Intelsat
Intelsat is a premier global provider of video and data services via
satellite
Convergence Partners
Convergence Partners is a South African-based investment company
focused on the telecommunications, media and technology sector,
predominantly in Africa and the Middle East.
Orbital Sciences Corporation
Prime contractor for Galaxy 12, 14 and 15; Intelsat 11, 15, 16, 18
and 23; Horizons-2 for an Intelsat/SKY Perfect JSAT joint venture;
and Intelsat 28 for Intelsat and Convergence Partners
Arianespace
Launch provider
Coverage Contour Maps
C-band Coverage Areas Ku-band Coverage Areas
EIRP
EIRP
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.
Orbital Sciences Corporation
45101 Warp Drive
©2014 Orbital Sciences Corporation FS007_08_2998
•
Dulles, Virginia 20166
•
www.orbital.com
GT
GT
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