Ses-1, ses-2 and ses-3 – Orbital SES-3 User Manual
Page 2
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FS005_07_2998
SES-1, SES-2 and SES-3
Mission Partners
SES
A leading global satellite operator providing a broad range of
communications services
Orbital Sciences Corporation
Prime contractor for the SES program
Specifications
Spacecraft
Launch Mass:
3,152 kg (6,949 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
Payload
Ku-band
Repeater:
Two groups of 16-for-12 linearized TWTAs
TWTA Power:
90 W RF
Antenna:
2.3 m dual grid shaped deployable reflector
C-band
Repeater:
Two groups of 16-for-12 SSPAs
SSPA Power:
20 W RF
Antenna:
2.3 m dual grid shaped deployable reflector
Ka-band
Repeater:
2-for-1 TWTA
TWTA Power:
39 W RF
Antenna:
Receive and transmit horns
Launch
SES-1:
Proton, April 24, 2010
SES-2:
Ariane 5, September 21, 2011
SES-3:
Proton, July 16, 2011
Coverage Contour Maps
C-band 101
°
West Longitude
Ku-band 101
°
West Longitude