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FCC clears SpaceX to shift Starlink satellite orbits

The Federal Communications Commission has given the go-ahead for SpaceX to modify the planned orbits for future satellites in its Starlink broadband internet constellation — a move that SpaceX says will result in improved, safer operations but has faced resistance from Amazon’s Project Kuiper and other rivals.

After the FCC issued its 57-page order, Amazon said its concerns were adequately addressed by the conditions that the commission placed on its approval.

The FCC authorized SpaceX to lower the primary operational altitude for 2,814 of its satellites from an originally specified range of between 1,100 to 1,200 kilometers (684 to 746 miles) to a range between 540 and 570 kilometers (336 to 354 miles). That’s in addition to 1,584 satellites previously cleared for the lower set of orbits.

SpaceX already has more than 1,300 satellites in low Earth orbit, and it’s in the process of expanding its beta testing program for Starlink’s satellite internet service. Sixty more satellites are due to be launched as early as Wednesday.

Eventually, SpaceX aims to offer global broadband access through a network that makes use of thousands more satellites. Those satellites are built at SpaceX’s growing facility in Redmond, Wash.

SpaceX says that the revised orbits should improve response times for the network — and that the lower orbits should make it easier to dispose of satellites once they’ve outlived their usefulness, by commanding them to take a fiery plunge through the atmosphere.

However, the newly authorized orbits come close to the 590- to 630-kilometer (367- to 391-mile) orbits that have been targeted for future satellites in Amazon’s Project Kuiper constellation, which also aims to provide global broadband internet access.

By Alan Boyle

Mastermind of Cosmic Log, contributing editor at GeekWire, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.

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