Orbital Amazonas 4A User Manual

GEO

Communications

Amazonas 4A

Ku-band Commercial Communications Satellite

FACTS AT A GLANCE

Mission Description

The Amazonas 4A spacecraft, built for Hispasat, features 24 Ku-band active transponders to

provide voice, wireless backhaul, internet, and media applications services to South America from

an orbital location at 61 degrees West Longitude. The satellite is based on Orbital's highly successful

GEOStar™-2 spacecraft bus and features two 2.5 x 2.7 meter single shell super elliptical deployable

reectors.

The contract for Amazonas 4A also includes an option for a second spacecraft to be based on a higher

power Orbital spacecraft bus.

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 America

Mission:

Ku-band communications

Customer:

Hispasat

Amazonas 4A in Orbital's Dulles, Virginia
satellite manufacturing facility

Amazonas 4A

Specications

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 >5053 W-Hr capacity Li-Ion batteries

Mission Life: 15 years

Orbit: 61

Payload

Ku-band

Repeater: 24 active transponders with two groups of

Antenna: 2.5 x 2.7 m single shell super-elliptical

Launch

Launch Vehicle: Ariane 5

Site: Kourou, French Guiana

Date: March 22, 2014

°

West Longitude

15-for-12 LCTWTAs

deployable reectors

Mission Partners

Hispasat

Hispasat is an industry leader in technology innovation

Orbital Sciences Corporation

Prime contractor for Amazonas 4A

Arianespace

Launch provider

Coverage Contour Maps

Ku-band Rx

Ku-band Tx

Orbital Sciences Corporation

45101 Warp Drive

©2014 Orbital Sciences Corporation FS001_12_2998

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Dulles, Virginia 20166

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www.orbital.com