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Communications

Mission Description

Under a contract from Thales Alenia Space, Orbital is assembling, integrating, and testing 81 spacecraft

for the Iridium NEXT program including 66 operational spacecraft, six on-orbit spares, and nine ground-

backup spacecraft. Orbital’s responsibilities also include Ground Support Equipment (GSE), payload

integration, including hosted payloads, shipment, and launch integration services.

Each spacecraft employs an L-band phased array antenna for generation of the 48-beam,

4,700 kilometer diameter cellular pattern on the Earth’s surface for communication with subscribers/

users. Ka-band links are also provided for communications with ground-based gateways and for

crosslinks with adjacent spacecraft in orbit. The cross-linked 66 satellite constellation forms a global

network in space allowing communications from a ground or airborne user from any location on Earth

to virtually anywhere else on Earth.

Coverage:

Worldwide

Mission:

Global mobile communications

Customers:

Thales Alenia Space – Cannes, France

Iridium Communications Inc. –

McLean, Virginia

FACTS AT A GLANCE

Artist's rendering of the Iridium NEXT

constellation of satellites

Iridium NEXT

The Next-generation Satellite Constellation of Iridium Communications Inc.

LEO

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Orbital Iridium NEXT Manual do Utilizador

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