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NASA formally ended its involvement in the LINK mission on Sept. 3, and the spacecraft re-entered Earth’s atmosphere on Sept. 25 without boosting the Neil Gehrels Swift Observatory. NASA and contractor Katalyst Space say the effort still provided experience with commercial spacecraft servicing, rapid mission planning and satellite operations.
NASA’s attempt to raise the orbit of its Neil Gehrels Swift Observatory ended without a boost after the commercial LINK spacecraft developed operational problems. NASA formally concluded its involvement on Sept. 3, and LINK re-entered Earth’s atmosphere on Sept. 25, the agency said; the effort nevertheless gave NASA and contractor Katalyst Space experience intended to inform future in-space servicing missions.
NASA contracted Katalyst Space, based in Flagstaff, Arizona, in September 2025 to design, build, test and launch a spacecraft that could meet Swift, grapple it and raise its orbit. The company had about a year for the work. LINK launched from Kwajalein Atoll in the Republic of the Marshall Islands in July aboard a Northrop Grumman Pegasus XL rocket. Katalyst chose that rocket based on the mission’s orbital requirements and compressed schedule.
After reaching space and completing initial checkouts, LINK began experiencing intermittent communications losses and problems with orientation control, according to NASA. Following around-the-clock troubleshooting by both teams, NASA and Katalyst scaled back the plan. LINK would not attempt to grapple or boost Swift; instead, the teams planned technology demonstrations involving its xenon-powered propulsion system and three robotic arms. NASA’s account does not report that LINK completed those demonstrations before its re-entry.
Swift’s controllers also changed operations while the boost effort was being prepared. Starting in December 2025, they replaced about 25% of the observatory’s science targets with sky positions intended to reduce atmospheric drag while Swift pointed toward them. By February, NASA said, the team had switched entirely to that approach. The supplied report says Swift did not carry out pointed science observations from mid-February through late August, but its final sentence is incomplete and does not explain the full outcome of that operating period.
Lessons for Commercial Satellite Servicing
The attempt did not extend Swift’s time in orbit, but NASA says it offered experience in organizing a public-private servicing effort under a tight deadline. The project required the agency and a commercial contractor to make design, safety and operations decisions more quickly than for a typical science mission, which can take years to develop. NASA says the teams established milestones and approval processes designed to preserve flexibility while moving toward launch.
The outcome also shows the difficulty of using a new commercial spacecraft to service an existing scientific observatory on a fixed schedule. LINK’s technical problems prevented the planned rendezvous and boost, so the mission did not demonstrate that it could move Swift. NASA and Katalyst say the work built a foundation for future efforts, but the source does not quantify what capabilities were successfully demonstrated or say when another attempt might occur.
For Swift, the immediate consequence was that the planned orbit-raising did not happen. NASA said the observatory was losing altitude because of atmospheric drag, an effect intensified by increased solar activity. The mission therefore offered a possible way to extend the observatory’s operations, but the effort ended without altering its orbit.
Why Swift Needed an Orbit Boost
Swift launched in November 2004 to study gamma-ray bursts, among the most powerful explosions in the universe. NASA says the observatory has spent more than two decades studying those bursts as well as comets and asteroids, other cosmic explosions and flares from black holes in distant galaxies. Its planned boost effort was aimed at extending the spacecraft’s time in low Earth orbit.
Atmospheric drag gradually lowers the altitude of spacecraft in low Earth orbit, especially those without propulsion systems. NASA said increased solar activity magnified that effect on Swift. The agency’s decisions about attempting a boost were based on predictions that Swift would reach an altitude of about 185 miles (300 kilometers) in fall 2026, a point NASA described as the point of no return for a boost attempt because the maneuver would become increasingly difficult below it.
NASA had only a few months to call for proposals through its Center of Excellence for Collaborative Innovation and fund design concept studies through its Small Business Innovation Research program. The agency then contracted Katalyst in September 2025. NASA said the schedule called for the company to progress from design to launch in about a year, while teams also developed review and approval processes for the accelerated effort.
““While we did not accomplish every objective we set out to achieve, in less than a year we went from mission concept to launching and operating the first commercial space robot.””
— Ghonhee Lee, CEO of Katalyst Space
What LINK Demonstrated in Orbit
NASA’s report identifies communications losses and orientation-control issues, but does not provide technical details about their causes, duration or resolution. It also does not specify which of the proposed propulsion and robotic-arm demonstrations were completed before LINK re-entered the atmosphere. The mission’s planned grapple and boost did not occur.
The available account does not say whether Swift’s science operations resumed after late August or give a current assessment of its orbit and remaining operating life. It describes fall 2026 as the predicted period when the observatory would reach roughly 185 miles (300 kilometers), but does not provide a newer altitude measurement or an updated re-entry forecast. NASA’s final quoted passage about Swift’s observation strategy is cut off in the supplied material, leaving that period’s full science impact unclear.
NASA’s Next Steps After LINK
NASA said it is capturing lessons learned from the effort to inform future servicing programs. The agency has not announced a follow-on boost mission, a new launch date or a specific program that will use LINK’s planned demonstrations. The reported work ahead is to assess the mission’s experience, including its accelerated planning, joint decision-making and operation of a commercial servicing spacecraft.
For Swift, the immediate next information readers would need is an updated NASA account of the observatory’s altitude, scientific operations and expected mission timeline. The supplied report does not provide those details. Until NASA releases them, the longer-term effect of the failed boost attempt on Swift’s remaining science work is not established.
Key Questions
Did LINK raise Swift’s orbit?
No. The planned orbit boost did not happen. NASA and Katalyst scaled back the mission after LINK experienced communications and orientation-control problems.
What happened to the LINK spacecraft?
NASA formally ended its involvement in the mission on Sept. 3. LINK re-entered Earth’s atmosphere on Sept. 25, according to the agency.
Why did NASA want to boost Swift?
Atmospheric drag was lowering Swift’s altitude, and NASA said increased solar activity magnified the effect. The boost was intended to extend the observatory’s time in low Earth orbit.
Did LINK complete its technology demonstrations?
The plan was scaled back to demonstrations of LINK’s xenon-powered propulsion system and three robotic arms. NASA’s supplied report does not say which demonstrations, if any, were completed before the spacecraft re-entered.
What happens to Swift now?
The supplied account does not give an updated orbit, science schedule or re-entry forecast for Swift. NASA said it is recording lessons from the attempt for future in-space servicing programs.
Source: primary
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