The Neil Gehrels Swift Observatory is a NASA space telescope launched in 2004 for high-energy astrophysics. NASA is preparing a robotic servicing mission to prevent Swift’s atmospheric re-entry and raise its orbit from about 360 km to about 600 km.
🔭 Neil Gehrels Swift Observatory
Launched in 2004, the Neil Gehrels Swift Observatory carries instruments for gamma-ray burst studies, X-ray astronomy and ultraviolet observations. It was not designed for robotic servicing, which makes external capture and orbit-raising operations technically complex.
🤖 Robotic Servicing Mission (LINK)
The planned servicing spacecraft is named LINK, built by Arizona-based Katalyst Space Technologies. It will launch on a Northrop Grumman Pegasus XL rocket and use three robotic arms to rendezvous with Swift, capture it and raise its orbit using ion thrusters.
- Servicing spacecraft: LINK (Katalyst Space Technologies).
- Launch vehicle: Northrop Grumman Pegasus XL rocket.
- Uses three robotic arms + ion thrusters for orbit-raising.
📉 Orbit Decay & Mission Timeline
Swift’s orbit has been decaying since early 2025 due to increased atmospheric drag linked to strong solar activity that began in 2024. NASA awarded Katalyst Space a contract in September 2025 to design, build, test and launch LINK within nine months, at a mission cost of $30 million.
🌌 Exam-Relevant Context
The mission is planned as the first private spacecraft attempt to capture and boost an uncrewed United States government satellite. If successful, Swift’s science operations — suspended since February 2026 — could resume as early as Fall 2026.
📌 Key Points (Important Facts for Exams)
• Neil Gehrels Swift Observatory was launched by NASA in 2004.
• The servicing spacecraft LINK is built by Katalyst Space Technologies.
• LINK will launch on a Northrop Grumman Pegasus XL rocket.
• Aim: raise Swift’s orbit from ~360 km to ~600 km, mission cost $30 million.
• Swift’s science operations have been suspended since February 2026.
🎯 Conclusion
The Swift robotic rescue could become a landmark in commercial in-space servicing — the first private attempt to capture and reboost a government satellite — extending the life of a two-decade-old astrophysics observatory.
📝 Practice MCQs
Q1. In which year was the Neil Gehrels Swift Observatory launched?
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Q2. What is the name of the robotic servicing spacecraft for Swift?
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Q3. Which company is building the LINK spacecraft?
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Q4. LINK will be launched on which rocket?
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Q5. The mission aims to raise Swift’s orbit to about:
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Q6. What propulsion will LINK use to raise Swift’s orbit?
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Q7. What is the stated cost of the mission?
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Q8. Swift’s orbit decay is linked to increased drag caused by:
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Q9. Since when have Swift’s science operations been suspended?
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Q10. The Swift Observatory is primarily used for studying:
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