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Swift Observatory Mission Ends Amid Orbital Decay

Updated 16 times since CLSTR started tracking revisions of this situation.

What changed

2026-10-24 05:23 UTC → 2026-10-26 20:02 UTC · added removed

NASA’s Neil Gehrels Swift Observatory officially concluded its 22-year scientific mission on 20 October 2026. The observatory ceased observations as its orbit decayed to less than 275 kilometers, where atmospheric drag prevented drag—a process reportedly accelerated by recent solar activity—prevented the stability required for astronomical targeting. Originally designed for a two-year primary mission, the observatory contributed to approximately 7,000 scientific publications during its tenure. publications, including data from over 2,000 gamma-ray bursts and 1,400 supernova explosions. The mission's end follows the failure of a $30 million salvage attempt by the LINK robotic servicer, developed by Katalyst Space Technologies. Launched on 3 July 2026, the LINK vehicle experienced critical hardware failures, including the loss of two reaction wheels and a propellant valve malfunction, leading to an uncontrolled multi-axis spin. Although engineers successfully tested the craft's robotic arms and brought it within 12 to 15 kilometers of the observatory, the vehicle exhausted its fuel before it could perform the intended capture and orbital boost. The LINK spacecraft reentered Earth's atmosphere and burned up on 25 or 26 September. While the rescue failed, the mission provided technical data for future in-space servicing. Following the failed attempt, the The Swift Observatory briefly resumed scientific operations, with the Burst Alert Telescope (BAT) recording radiation again on 18 September. However, the observatory could not maintain its altitude. The spacecraft has since entered a safety mode to prepare for descent and is expected to reenter undergo an uncontrolled reentry into Earth's atmosphere and disintegrate in within the coming weeks. LeoLabs indicates the probability Due to its orbital inclination, any surviving debris is expected to land within a strip ranging from central Mexico to parts of South America and various oceanic regions. NASA noted that while some fragments may survive, it is unlikely that debris causing significant property will cause damage or human injury is very low. to people on the ground.

Versions

  1. 2026-10-26 20:02 UTC Swift Observatory Mission Ends Amid Orbital Decay
  2. 2026-10-24 05:23 UTC Swift Observatory Mission Ends Amid Orbital Decay
  3. 2026-10-02 03:52 UTC Swift Observatory Resumes Science Amid Orbital Decay
  4. 2026-09-30 10:53 UTC Swift Observatory Resumes Science Amid Orbital Decay
  5. 2026-09-27 13:08 UTC Swift Observatory Resumes Science Amid Orbital Decay
  6. 2026-09-26 15:46 UTC NASA Cancels Swift Observatory Rescue Mission
  7. 2026-09-25 20:56 UTC NASA Cancels Swift Observatory Rescue Mission
  8. 2026-09-01 15:54 UTC NASA Cancels Swift Observatory Rescue Mission
  9. 2026-08-25 09:25 UTC NASA Cancels Swift Observatory Rescue Mission
  10. 2026-08-23 05:08 UTC NASA Cancels Swift Observatory Rescue Mission
  11. 2026-08-21 19:38 UTC NASA Cancels Swift Observatory Rescue Mission
  12. 2026-08-19 21:30 UTC NASA Cancels Swift Observatory Rescue Mission
  13. 2026-08-07 19:52 UTC NASA Swift Rescue Spin Issues; Roman Launch Set
  14. 2026-08-03 00:02 UTC NASA Swift Rescue Delayed; Roman Telescope Launch Set
  15. 2026-07-31 10:33 UTC NASA Swift Rescue Delayed; Roman Telescope Launch Set
  16. 2026-07-30 00:32 UTC NASA Swift Rescue Delayed; Roman Telescope Launch Set
  17. 2026-07-26 18:59 UTC NASA Swift Rescue Ongoing; Roman Telescope Launch Set

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