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Katalyst Spacecraft Reaches Failing Swift Observatory, Turns Away
NASA’s Swift telescope is slowly falling toward Earth because the Sun has made its orbit lower.
A private company called Katalyst sent a robot spacecraft named Link to try to help it.
Link got as close as nine miles and took pictures of Swift.
However, Link had already spun out of control earlier in the mission.
Fixing that problem used too much of its fuel.
Without enough fuel, Link could not push Swift into a safer orbit.
The rescue was stopped, but Link still collected useful information for NASA.
NASA says the mission can teach engineers how to service spacecraft in the future.
Swift is expected to fall into the atmosphere sometime between October and the end of the year.
Katalyst’s Link spacecraft came within 15 kilometers, or nine miles, of NASA’s Swift Observatory and photographed it.
The rescue had been abandoned in August after Link entered an uncontrollable spin and used substantial fuel to stabilize.
Low fuel prevented Link from raising Swift into a higher, longer-lasting orbit.
Katalyst CEO Ghonhee Lee attributed Link’s problems to a rushed nine-month development schedule and unavailable preferred parts.
Swift’s orbit has fallen to 208 miles because of solar activity, and NASA expects it to reenter between October and year’s end.
- Who
- Katalyst Space Technologies, led by CEO Ghonhee Lee, attempted to assist NASA’s Swift Observatory; NASA Administrator Jared Isaacman discussed the mission’s outcome.
- What
- Katalyst’s Link spacecraft approached Swift to gather data and potentially raise its orbit, but it turned away because of low fuel.
- Where
- The operation took place in orbit around Earth; the article identifies Cape Canaveral as the dateline.
- When
- Link launched in July, the rescue was abandoned in August, and the close approach occurred the following weekend; Swift is expected to reenter between October and year’s end.
- Why
- Swift’s orbit was lowered much sooner than expected by intense solar storms, creating a need to extend the telescope’s operational life.
Case for Experimental Servicing
Concerns About Mission Readiness
Value of the attempt
Case for Experimental Servicing
NASA Administrator Jared Isaacman said missions like this should be attempted so NASA can learn, and that extending a valuable spacecraft’s life can make sense when it costs less than replacement.
Concerns About Mission Readiness
The rescue did not achieve its main goal because Link lacked enough fuel to move Swift into a higher orbit.
Preparation and execution
Case for Experimental Servicing
NASA and Katalyst viewed the operation as an experiment with limited downside, while Link still reached Swift and collected useful data for future servicing missions.
Concerns About Mission Readiness
Ghonhee Lee said the mission was assembled in only nine months and engineers had to use available parts instead of waiting for preferred ones, which he blamed for Link’s problems.
Key facts
- Closest approach
- Link came within 15 kilometers, or nine miles, of Swift.
- Mission cost
- NASA paid Katalyst Space Technologies $30 million for the attempt.
- Link’s problem
- The spacecraft entered an uncontrollable spin shortly after launch and used precious fuel to stabilize.
- Swift’s current orbit
- Swift’s orbit had dropped to 208 miles, or 335 kilometers, as of Friday.
- Swift launch
- Swift was launched in 2004.
- Expected reentry
- NASA anticipates Swift will plunge through the atmosphere between October and the end of the year.
- Future Link activity
- Link is expected to continue exercising its one-meter arms and gathering data before reentering and burning up.
Quotes
Ghonhee Lee
CEO of Katalyst Space Technologies
“Hubble does still have a few years of life yet, right? So the good news is this isn't imminent”
republicworld.com
“We got so close, but so far”
republicworld.com
Jared Isaacman
NASA administrator
“Unfortunately, it wasn't the outcome that we were expecting. But that's exactly the type of missions that we should be flying at NASA. We will learn from that.”
republicworld.com
Sources
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