Sunday, January 13, 2019

Iridium completes its LEO constellation, 75 satellites in orbit

The final 10 Iridium NEXT satellites were successfully launched into orbit aboard a SpaceX Falcon 9 rocket from Vandenberg Air Force Base in California.

This was the eighth and final launch for Iridium's historic launch campaign with SpaceX, seeing a total of 75 new satellites deployed over less than two years.

The Iridium network is comprised of six polar orbiting planes, each containing 11 operational crosslinked satellites, for a total of 66 satellites in the active constellation. Once all the satellites from the Iridium-7 mission are operational, plane 5 will be the fourth orbital plane to be comprised entirely of Iridium NEXT satellites.  In total, 81 Iridium NEXT satellites are being built, with 66 in the operational constellation, nine serving as on-orbit spares and six serving as ground spares.

Iridium NEXT is the company's $3 billion, next-generation, mobile, global satellite network scheduled for completion in 2018.  Iridium NEXT is replacing the company's first generation global constellation in one of the largest technology upgrades ever completed in space.  It represents the evolution of critical communications infrastructure that governments and organizations worldwide rely on to drive business, enable connectivity, empower disaster relief efforts and more.


Iridium has invested approximately $3 billion to replace its original satellite system with a new, state-of-the-art network, ushering in an era of financial and technological transformation for the company. At the core of this transformation is the dramatic change in cash flows as construction capital expenses end and a decade or longer "capex holiday" allows significant cash generation from existing and new services. These include Iridium CertusSM, which will provide the world's fastest and only truly global specialty L-band broadband connectivity, enabling highly mobile internet access using smaller and more cost-effective terminals, and the AireonSM aircraft surveillance system, extending real-time visibility of aircraft for air traffic controllers and airlines to the entire planet for the first time.

"There are few words to describe what it feels like to complete a vision started many years ago when I joined the company and what it means for Iridium and our future," said Iridium CEO Matt Desch. "Our gratitude to SpaceX for helping bring this new generation of satellites to orbit, so flawlessly every time is beyond words.  However, for Iridium, we're not quite across the finish line yet, as there is still some work to do to put these satellites into operation. Once that's complete, our future will be in place.  I'm just incredibly proud of our team right now."

To date, new satellites make up 60 of the 66 satellites in operation, with the final six scheduled for activation in the coming weeks from today's launch. Iridium NEXT satellites were designed by Thales Alenia Space, which serves as system prime contractor, and are being integrated by Thales' subcontractor, Northrop Grumman.  The production process features an 18-station, state-of-the-art assembly line system for all 81 Iridium NEXT satellites being built.

"Totally deployed, Iridium NEXT is now arguably the world's highest performance and most sophisticated constellation which represents today's state of the art in terms of technology and flexibility and Thales Alenia Space is so proud for having risen to this huge challenge. I would like to thank Iridium for having placed its trust in us, and thank everybody at my company, at Iridium and at our partners for having worked as "One Team," all with the sole objective of delivering the constellation to orbit as quickly as possible, while guaranteeing top-flight quality," declared Jean Loïc Galle, CEO of Thales Alenia Space.