Tuesday, 23 January 2018 10:55

Iridium readies for 5th NEXT satellite launch

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Global satellite communications company Iridium is set to launch its fifth NEXT satellite with SpaceX in March from Vandenberg Air Force Base in California.

The first of four launches planned for 2018, Iridium-5 will deliver 10 more Iridium NEXT satellites to orbit, bringing the number of new satellites deployed to 50.

The planned launch will use the same Falcon 9 first stage as the Iridium-3 launch that took place in October 2017 and begin a rapid-cadence launch schedule targeting completion of the Iridium manifest by mid-2018.

“We are entering the home stretch,” said Matt Desch, chief executive at Iridium. “This is going to be a monumental year for us as we complete our constellation refresh. In addition to four launches, we will continue the testing and validation processes for our new specialty broadband service, Iridium Certus, and look forward to its commercial launch later this year. We consider 2017 to be a great success and anticipate this year to be even better.”

The Iridium network comprises six polar orbiting planes, each containing 11 operational crosslinked satellites, for a total of 66 satellites in the active constellation.

The Iridium-5 launch will deliver the new satellites to orbital plane 1, where all 10 will go directly into service after testing and validation.  

Following Iridium-5, the Iridium-6 Rideshare mission is targeted for mid-to-late April. The Rideshare will carry five Iridium NEXT satellites and the twin satellites for the NASA/German Research Center for Geosciences (GFZ) Gravity Recovery and Climate Experiment Follow-On mission.

The final four launches will bring 35 new satellites to space, completing the constellation of 66 operational satellites and 9 in-orbit spares.

Iridium NEXT is the company's $3 billion, next-generation, mobile, global satellite network scheduled for completion in 2018, and the constellation features 66 active satellites, plus nine on-orbit spares.

Iridium says in total, 81 new satellites are being built, with the six remaining satellites serving as ground spares.

The satellite company says Iridium NEXT will replace its existing global constellation in one of the largest technology upgrades ever completed in space.  

“It represents the evolution of critical communications infrastructure that governments and organisations worldwide rely on to drive business, enable connectivity, empower disaster relief efforts and more,” the company notes.

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Peter Dinham

Peter Dinham is a co-founder of iTWire and a 35-year veteran journalist and corporate communications consultant. He has worked as a journalist in all forms of media – newspapers/magazines, radio, television, press agency and now, online – including with the Canberra Times, The Examiner (Tasmania), the ABC and AAP-Reuters. As a freelance journalist he also had articles published in Australian and overseas magazines. He worked in the corporate communications/public relations sector, in-house with an airline, and as a senior executive in Australia of the world’s largest communications consultancy, Burson-Marsteller. He also ran his own communications consultancy and was a co-founder in Australia of the global photographic agency, the Image Bank (now Getty Images).

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