Private rescue mission efforts to extend the life of a key NASA observatory have hit an early snag after the Katalyst Space–built LINK spacecraft began spinning unexpectedly in orbit. Launched on July 3 atop a mid-air Pegasus XL rocket, the vehicle was designed to rendezvous with the nearly 22-year-old Neil Gehrels Swift Observatory and provide a propulsive boost to keep the telescope aloft. Engineers say the spacecraft remains in communication and power positive, but attitude control problems have pushed the planned approach timeline back.
Mission teams traced the rotation to electrical power anomalies that affected two of the spacecraft’s three reaction control system wheels; only one RCS wheel is reported fully functional. Katalyst engineers have reduced the spin through targeted engine firings, lowering rotation from about nine degrees per second to approximately four degrees per second, and work to stabilize the vehicle is ongoing. The issue has shifted the earliest feasible rendezvous from roughly one month after launch to late August, according to mission updates. NASA has noted that other spacecraft systems are performing nominally and that revised approach plans will be evaluated once attitude control is restored.
The schedule is constrained by orbital decay of the Swift Observatory, which is expected to drift low enough to preclude rescue efforts by autumn unless it receives a timely boost. Agency models indicate a minimum viable rescue altitude of about 185 miles (298 kilometres); by comparison, the International Space Station operates near 250 miles (400 kilometres). To limit drag, Swift has reduced onboard science operations while teams assess options. The private boost mission carries a reported contract value of $30 million and, if successful, could preserve an asset whose scientific and replacement value has been estimated at several hundred million dollars.
Public statements from mission leadership emphasize continued work to stabilize LINK. Jared Isaacman, who commented on the effort, said, “We are not giving up yet.” Scientists note the value of Swift’s capabilities across gamma-ray burst detection and rapid multiwavelength follow-up; S. Bradley Cenko, Swift’s principal investigator, has described the observatory as a versatile tool for monitoring transient phenomena. Engineers will continue diagnostics and corrective operations in the coming weeks before confirming a revised timeline for approach and capture operations.
