Space Force Switches to SpaceX Rocket for Key GPS Satellite

The U.S. Space Force has decided to launch its next GPS satellite on a SpaceX Falcon 9 rocket instead of a United Launch Alliance Vulcan. This switch, announced this week, will send the GPS III Space Vehicle 09, or SV09, into orbit in the coming weeks from Cape Canaveral in Florida. The move comes as the military pushes to deliver satellites quickly to meet the needs of troops on the ground who rely on GPS for navigation and targeting.

Background

GPS satellites form the backbone of the Global Positioning System, a network that guides everything from military operations to civilian smartphones and airplanes. The U.S. Space Force manages this constellation, which has over 30 satellites circling Earth in medium orbit. Each new satellite improves accuracy, security, and resistance to jamming by enemies.

For years, the Space Force has worked with two main rocket companies: United Launch Alliance, or ULA, and SpaceX. ULA builds the Vulcan rocket, its newest heavy lifter, while SpaceX uses the reliable Falcon 9 and its bigger brother, the Falcon Heavy. Contracts for these launches come through the National Security Space Launch program, a big deal worth billions that spreads missions between the companies to keep competition alive and options open.

SV09 was first assigned to ULA back in October 2023 as part of a batch of 11 missions. That contract was worth $1.3 billion. Meanwhile, another satellite, GPS IIIF SV13, was set for SpaceX on a Falcon Heavy sometime in the future under a 2025 contract. But delays with Vulcan have piled up, pushing back national security launches. Vulcan faced problems like parts breaking off during test flights and certification holdups, forcing the Space Force to rethink its schedule.

This is not the first time such a swap has happened. In May 2025, SpaceX launched GPS III SV08, which was originally ULA's job. In return, ULA got SV11. Before that, in December 2024, SpaceX flew SV07 in a quick-response mission to dodge Vulcan holdups. These trades show how the Space Force juggles providers to keep satellites coming online without big gaps.

Key Details

The latest trade swaps SV09 to SpaceX's Falcon 9 and gives SV13 to ULA's Vulcan. A spokesperson from the Space Force's Space Systems Command said the change gets capability to orbit as soon as possible.

“SV09 and SV13 were traded between ULA and SpaceX to get capability to orbit as soon as possible, for the same reason as the prior swap, which resulted in the last GPS launch in May 2025,” the spokesperson said. “The trade results in an overall net cost savings to the government and again demonstrates our sustained commitment to moving at speed to deliver combat-credible capabilities on orbit to meet warfighter needs.”

SV09 is in final pre-flight checks and could lift off within weeks. The Falcon 9 has a strong track record with GPS missions—it has flown six of these satellites already, including the rapid ones in 2024 and 2025. SpaceX's rockets return to Earth after launch, cutting costs and allowing quick reuse.

ULA's Vulcan, meanwhile, just marked its first national security flight with an experimental GPS satellite called Navigation Technology Satellite-3. That launch tested new signals to fight spoofing and jamming, plus antennas for tough environments. But Vulcan's delays have created a backlog. The company now plans more frequent launches with Vulcan and its older Atlas rockets to catch up on 25 Space Force missions.

Past Swaps and Rapid Launches

The Space Force has sped up launches before to fill gaps. In 2024, they pulled SV07 from storage, prepped it in five months instead of two years, and sent it up on Falcon 9. Col. Doug Pentecost, then deputy for assured access to space, called it a way to handle Vulcan delays. Another colonel noted it proved they could respond to on-orbit failures fast. These efforts rely on stored payloads ready to go and proven rockets like Falcon 9.

What This Means

This rocket switch keeps the GPS network strong by avoiding delays. Troops need precise location data in combat, where even short outages can matter. Civilians benefit too, as better satellites mean more reliable phone maps and air traffic control.

For the companies, it highlights SpaceX's edge in speed and cost. Falcon 9 launches often and cheap, while Vulcan builds experience with each flight. The Space Force saves money overall—trades like this cut net costs—and pushes both firms to deliver on time.

Looking ahead, more GPS satellites are in the pipeline, including follow-on models with extra features like laser communications. The Space Force also eyes on-orbit fixes, like refueling satellites in space, with four demo missions set for 2026. These could extend satellite lives and make the network tougher against threats.

Vulcan delays have rippled through schedules, but swaps like this one smooth them out. SpaceX preps other military payloads, like missile-tracking satellites, showing its growing role. ULA ramps up to match that pace. Together, they ensure GPS stays ahead of rivals like China's BeiDou system.

The SV09 launch will add another layer to the constellation soon. Once in orbit, it will join others to boost signal strength and security. Ground teams will check it out, then declare it ready for use, much like past rapid launches that went operational in under a month.

This pattern of flexible planning helps the Space Force meet demands in a busy launch world. With dozens of missions yearly, from GPS to spy sats, keeping rockets flowing matters. The swap for SV09 fits that goal, putting a proven rocket to work right away.