Horizons-2 – Orbital Horizons-2 User Manual
Page 2
Orbital Sciences Corporation
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©2014 Orbital Sciences Corporation
FS004_05_2998
Horizons-2
Mission Partners
Horizons Satellite Holdings, LLC
A joint venture between Intelsat and SKY Perfect JSAT
Orbital Sciences Corporation
Prime contractor for Galaxy 12, 14 and 15; Intelsat 11, 15, 16, 18,
23 and 28; and Horizons-2 for an Intelsat/SKY Perfect JSAT joint
venture
Arianespace
Launch provider
Specifications
Spacecraft
Launch Mass:
2,350 kg (5,181 lb.)
Solar Arrays:
Three 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 >3850 W-Hr capacity Li-Ion batteries
Mission Life:
15 years
Orbit:
74° West Longitude
Payload
Ku-band
Repeater:
16 active transponders with 22-for-16
redundant TWTAs; 4 active transponders
with 6-for-4 redudant TWTAs
Antenna:
Two 2.3 m dual grid shaped reflectors
Launch
Launch Vehicle:
Ariane 5
Site:
Kourou, French Guiana
Date:
December 21, 2007
East Coast Coverage Area
Coverage Contour Maps
CONUS Coverage Area