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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
Saturday, June 27, 2026
09:00:00 AM UTC
5h 28m windowAccurate to the hour
Pegasus XL | Swift Boost Mission
Mission
T-Minus
—±hour
Probability
—weather window
Window
5h 28mlaunch window
Orbit
LEOLow Earth Orbit
Mission Type
Mission Extension
Global # This Year
#151orbital 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
27.9°C82°F · feels 30°C
Wind
28.2 km/h ENE18 mph · 75°
Cloud Cover
100%overcast
Visibility
11 kmunrestricted
Humidity
80%nominal
Precipitation
0 mm41% chance
Pressure
1007 hPasurface
Daylight
Conditions
NighttimeAir launch to orbit
Sunrise
—local
Sunset
—local
Daylight
12h 40mtotal today
Orbital launches this year#151globally
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
27.9°C82°F · feels 30°C
💨Wind
28.2 km/h ENE18 mph · 75°
🌧Precipitation
0 mm41% chance
💧Humidity
80%
👁Visibility
11 km
⬇Pressure
1007 hPa
☁Cloud Cover
100%
Daylight · Nighttime
Sunrise2026-06-24T18:31:36+00:00
Sunset2026-06-25T07:11:42+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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