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Katalyst Space Technologies Satellite Faces Reaction Wheel Issues in Orbit

A commercial satellite designed to assist NASA's Swift telescope has encountered operational problems, including inoperable reaction wheels and thruster system issues, NASA announced.

28 July 2026
Katalyst Space Technologies Satellite Faces Reaction Wheel Issues in Orbit

The Link satellite, developed by Katalyst Space Technologies for a mission to aid NASA's Swift gamma-ray telescope, is experiencing significant technical difficulties in orbit, NASA reported Tuesday. The spacecraft, launched nearly a month ago, has faced "issues with attitude control" that have caused it to spin and led to intermittent communications.

According to NASA's statement, initial investigations indicate that two of the satellite's three reaction wheels are currently non-functional. Furthermore, there are reports of "some loss of functionality" in its cold gas thruster system. These components are critical for maintaining the satellite's orientation and stability in space.

The intended purpose of the Link satellite was to help manage the Swift telescope's reentry into Earth's atmosphere. The failure of these key systems raises concerns about the satellite's ability to perform its designed function and maintain stable operation.

NASA has not yet provided a timeline for remediation or further details on how these issues will impact the mission's objectives. The agency stated that a preliminary investigation is ongoing to diagnose the full extent of the problem and to explore potential solutions.

Original source: arstechnica.com