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Pegasus XL | Swift Boost 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.

T-minus
00Days
:
00Hrs
:
00Min
:
00Sec
Wednesday, July 1, 2026
09:43:00 AM UTC
5h 58m windowAccurate to the minute
Pegasus XL | Swift Boost Mission
Mission
T-Minus
—±minute
Probability
—weather window
Window
5h 58mlaunch window
Orbit
LEOLow Earth Orbit
Mission Type
Mission Extension
Global # This Year
#156orbital attempts
Agency # This Year
#2Northrop
Vehicle
Launch Vehicle
Pegasus XLPegasus
Provider
Northrop Grumman Space SystemsCommercial
Success Rate
—
Total Launches
—all-time
Launch Site
Pad
Kwajalein AtollAir launch to orbit
Pad Launches
4from this pad
Site Launches
51from Air launch to orbit
Latitude
8.7167°
Longitude
167.7333°
Air launch to orbit Weather
Status
CAUTIONlaunch site · live
Temperature
26.9°C80°F · feels 29.6°C
Wind
25.1 km/h SE16 mph · 143°
Cloud Cover
100%overcast
Visibility
5.5 kmreduced
Humidity
86%high
Precipitation
0.7 mm61% chance
Pressure
1006 hPasurface
Daylight
Conditions
NighttimeAir launch to orbit
Sunrise
—local
Sunset
—local
Daylight
12h 40mtotal today
Orbital launches this year#156globally
Agency launches this year#2Northrop
Launches from this pad4Kwajalein Atoll
Launches from this site51Air launch to orbit

Mission Data

Launch VehiclePegasus XL
Vehicle FamilyPegasus
Launch Provider🇺🇸 Northrop Grumman Space Systems
Provider TypeCommercial
Mission TypeMission Extension
Target OrbitLow Earth Orbit
Launch PadKwajalein Atoll
LocationAir launch to orbit ???
MapView on Google Maps ↗
Status Note

Current T-0 confirmed by official or reliable sources.

Launch Site Weather

🌡Temperature
26.9°C80°F · feels 29.6°C
💨Wind
25.1 km/h SE16 mph · 143°
🌧Precipitation
0.7 mm61% chance
💧Humidity
86%
👁Visibility
5.5 km
⬇Pressure
1006 hPa
☁Cloud Cover
100%
Daylight · Nighttime
Sunrise2026-06-29T18:32:47+00:00
Sunset2026-06-30T07:12:34+00:00
13h 40m of daylight
Location

Air launch to orbit

Launch Site

Est. trajectory · LEO
8.7167°N · 167.7333°E

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