Orbital SES-8 User Manual
GEO
Communications
SES-8
Hybrid Ku-band and Ka-band Commercial Communications Satellite
FACTS AT A GLANCE
Mission Description
SES-8, a hybrid Ku- and Ka-band spacecraft, is the sixth GEOStar-2™ satellite ordered by
SES S.A. The satellite is based on Orbital’s Enhanced GEOStar-2 bus, and carries 24 active
Ku-band transponders of 36 or 54 Mhz capacity switchable amongst 33 channels and two beams.
Certain channels in each beam are cross-strapped to multiple frequency bands, enabling exibility
for new services. In addition, the spacecraft features a Ka-band payload. The spacecraft generates
approximately ve kilowatts of payload power and features two 2.5 x 2.7 meter super elliptical
deployable reectors and a 1.45 meter xed, deck-mounted antenna.
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:
South Asia and Indo-China
Mission:
Ku-band communications for South
Asia and Indo-China
Ka-band communications for the
Asia-Pacic region
Customer:
SES
SES-8 in Orbital's Dulles, Virginia satellite
manufacturing facility
SES-8
Specications
Spacecraft
Launch Mass: 3,200 kg (7,055 lb.)
Solar Arrays: Four panels per array, UTJ Gallium
Arsenide cells
Stabilization: 3-axis stabilized
Propulsion: Monopropellant (hydrazine) on-orbit system
Batteries: Two >4840 W-Hr capacity Li-Ion batteries
Mission Life: 15 years
Orbit: 95
Payload
Ku-band
Repeater: 24 active transponders with one group of 18-
TWTA Power: 120 W RF
Antenna: Two 2.5 x 2.7 m single shell super-elliptical
Launch
Launch Vehicle: Falcon 9
Site: Cape Canaveral, Florida
Date: December 3, 2013
°
East Longitude
for-15; one group of 12-for-9 TWTAs
deployable reectors; one 1.45 m single shell
deck-mounted
Mission Partners
SES
A leading global satellite operator providing a broad range of
communications services
Orbital Sciences Corporation
Prime contractor for the SES program
Coverage Contour Maps
Indo-China EIRP 95° East Longitude
South Asia EIRP 95° East Longitude
Orbital Sciences Corporation
45101 Warp Drive
©2014 Orbital Sciences Corporation FS003_11_2998
•
Dulles, Virginia 20166
•
www.orbital.com
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