A Northrop Grumman Pegasus XL, dropped from the Stargazer L-1011 over Kwajalein Atoll, launched Katalyst Space's LINK robotic servicing spacecraft to low Earth orbit on a NASA-contracted mission to capture NASA's Neil Gehrels Swift Observatory and raise its decaying orbit. After an attitude control problem left LINK without enough propellant, NASA and Katalyst dropped the capture and boost; LINK instead flew rendezvous and proximity operations, approaching within 12-15 km of Swift, before reentering on September 25, 2026.

The launch date was Friday, July 3, 2026 at 8:36 AM (UTC).

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Provider	Northrop Grumman
Vehicle	Pegasus
Location	Stargazer L-1011 Ronald Reagan Ballistic Missile Defense Test Site Marshall Islands
All dates and times should be submitted in UTC timezone. Use Estimated Date if you don't know the official launch date and time; otherwise, use Window Opens/Closes and/or Planned T-0, which will override the Estimated Date.
— Estimated Date —
Date
— Window Opens —
Date
Time
Launch Date	Friday, July 3, 2026
Launch Time	8:36 AM (UTC)
— Planned T-0 —
Date
Time
— Window Closes —
Date
Time
Result	Success
COSPAR ID	2026-152

Previous Attempts

Jun 30, 2026 10:17 AM — Scrubbed

Jul 1, 2026 9:43 AM — Scrubbed

Jul 2, 2026 9:09 AM — Scrubbed

Air Launch

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Related Info

About the Swift Boost Mission

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