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Swift Boost Mission

© NASA/Laurie Losey

All launches
Northrop Grumman Space Systems

Swift Boost Mission

Success

Pegasus XL
T-minus to liftoff

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HOURS

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MINUTES

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SECONDS

Jul 3, 08:36:00 UTC
StatusSuccess
VehiclePegasus XL
OrbitLow Earth Orbit
PadKwajalein Atoll (Stargazer)
Loading map…

Mission

Contracted by NASA under the Small Business Innovation Research Phase 3 contract, Katalyst Space Technologies' LINK servicing spacecraft will rendezvous and attach to NASA’s Neil Gehrels Swift Observatory to re-boost its orbit. This aims to demonstrate a key capability for the future of space exploration and extending the Swift mission’s science lifetime in gamma ray astronomy.

Launch Timeline

In-flight

T+00:00:00

Liftoff

T+00:00:05

Ignition

T+00:01:19

MECO

T+00:01:35

SES

T+00:02:17

Fairing Separation

T+00:02:50

SECO

T+00:06:35

Stage 3 Ignition

T+00:07:44

Stage 3 Cutoff

T+00:12:44

Payload Separation

Quick facts

VehiclePegasus XL
OrbitLow Earth Orbit
PadKwajalein Atoll (Stargazer)
SiteAir launch to orbit
WindowJul 3, 08:36:00 UTC→Jul 3, 08:36:00 UTC

Vehicle

FamilyPegasus
Height17.6 m
Diameter1.27 m
Stages3
ReusableNo
LEO capacity443 kg
Track record29/32 successful
Acquiring satellite view…
General trajectory
Kwajalein Atoll (Stargazer)
Air launch to orbit
Launching
East
109° · ESE
7.771, 166.652

Orbital elements (TLE)

Orbit
Apogee385 km
Perigee357 km
Period92.0 min
Inclination20.66°

Launch heading 109° · ESE from Swift Boost Mission.

OrbitSwift Boost Mission› conemedium
1 70133U 26152A 26184.36370370 .00000000 00000-0 00000-0 0 9990
2 70133 20.6598 058.0075 0021394 139.6654 035.9000 15.65797721 01

Pre-launch TLEs from Dillon's Space Page. Estimated before flight — the real orbit is confirmed post-launch.

Related coverage

Rescue Swift
6/26/2026