SpaceX launches advanced GPS satellite for US Space Force (photos)

SpaceX launched an advanced, jam-resistant GPS satellite for the U.S. Space Force from Florida on Tuesday night (Jan. 27).

A SpaceX Falcon 9 rocket launches the GPS III-SV09 satellite for the U.S. Space Force from Florida on Jan. 27, 2026. (Image credit: SpaceX)

The first GPS III vehicle lifted off in December 2018. As its name suggests, GPS III-SV09 was the ninth, out of a planned total of 10, to reach orbit. The final one in the series is expected to go up later this year.

GPS III-SV09 was originally booked to fly on Vulcan Centaur, United Launch Alliance's powerful new rocket. But the Space Force changed that plan.

"For this launch, we traded a GPS III mission from a Vulcan to a Falcon 9, then exchanged a later GPS IIIF mission from a Falcon Heavy to a Vulcan," U.S. Space Force Col. Ryan Hiserote, SYD 80 Commander and National Security Space Launch program manager, said in an emailed statement on Jan. 22.

a boxy satellite deploys into orbit from a rocket's upper stage — The upper stage of a SpaceX Falcon 9 rocket deploys the GPS III-SV09 satellite for the U.S. Space Force into medium-Earth orbit on Jan. 27, 2026. (Image credit: SpaceX)

"Our commitment to keeping things flexible — programmatically and contractually — means that we can pivot when necessary to changing circumstances," he added. "We have a proven ability to adapt the launch manifest to complex and dynamic factors and are continuing to shorten our timelines for delivering critical capabilities to warfighters."

GPS IIIF, by the way, is the next iteration of satellites the U.S. will use for positioning, navigation and timing. (The "F" stands for "follow-on.") The first of these spacecraft is expected to launch in Spring 2027.

GPS III-SV09 was SpaceX's fastest-ever turnaround for a national security mission, according to the company; the satellite was integrated and launched in just 41 days.

a man in a blue flight suit poses for a portrait beside an american flag and a model of a rocket — Official NASA portrait of astronaut Ellison Onizuka (1946-1986). (Image credit: NASA)

The Space Force named GPS III-SV09 after former U.S. Air Force Col. Ellison Onizuka, one of the seven NASA astronauts who died in the space shuttle Challenger accident on Jan. 28, 1986.

Other former astronauts have been so honored as well. For example, GPS III-SV05 was named after Apollo 11 moonwalker Neil Armstrong, and GPS III-SV07 carries the moniker "Sally Ride," after the first American woman to reach space.

Tuesday's flight was the fifth for this particular Falcon 9's first stage. It returned to Earth as planned about 8.5 minutes after launch, landing vertically on the SpaceX drone ship "A Shortfall of Gravitas" in the Atlantic Ocean.

The Falcon 9's upper stage, meanwhile, deployed "Ellison Onizuka" into orbit on schedule, releasing it at an altitude of 2,650 miles (4,265 kilometers) about 90 minutes after liftoff

Editor's note: This story was updated at 1 p.m. ET on Jan. 26 with the new target launch date of Jan. 27. It was updated again at 2:15 a.m. ET on Jan. 28 with news of launch, rocket landing and payload deployment.

Michael Wall is a Senior Space Writer with Space.com and joined the team in 2010. He primarily covers exoplanets, spaceflight and military space, but has been known to dabble in the space art beat. His book about the search for alien life, "Out There," was published on Nov. 13, 2018. Before becoming a science writer, Michael worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in science writing from the University of California, Santa Cruz. To find out what his latest project is, you can follow Michael on Twitter.

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