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Atlas V 421 | SBIRS GEO-5
Atlas V 421 | SBIRS GEO-5 launched on Tue, May 18, 2021, 05:37 PM UTC — a United Launch Alliance mission.
Launch SuccessfulUnited Launch Alliance
Lifted offNET May 2021
NET Tue, May 18, 2021, 05:37 PM UTC
Live coverage
Watch the webcasts
2 streams available — switch between the provider’s feed, X and others.
Mission profile
The flight at a glance
Atlas V 421Vehicle
United Launch AllianceProvider
Space Launch Complex 41Pad
Cape Canaveral SFS, FL, USALocation
Government/Top SecretMission type
Geostationary Transfer OrbitOrbit
Flight simulation
Ascent to orbit
A representative gravity-turn climb for Atlas V 421 to Geostationary Transfer Orbit. Illustrative model — not this mission’s live telemetry.
Mission timeT+0:00
Altitude0.0 km
Velocity0.00 km/s
PhaseLiftoff
T+0:00 / 17:30
SimulatedRepresentative Atlas V 421 ascent profile — illustrative model, not this mission’s live telemetry.
The mission
SBIRS GEO-5
Fifth geosynchronous satellite of the Space Based Infrared System program (SBIRS), providing capabilities for early missile warning and missile defense. SBIRS GEO-5 is the first satellite using Lockheed Martin's LM2100 combat bus.
Around this launch
Related news
No news linked to this launch yet
As coverage publishes, deduplicated articles about this mission will appear here.
Good to know
Frequently asked
What time does Atlas V 421 | SBIRS GEO-5 launch?
Atlas V 421 | SBIRS GEO-5 is scheduled to lift off Tue, May 18, 2021, 05:37 PM UTC.
Where can I watch Atlas V 421 | SBIRS GEO-5?
Watch the official live webcast embedded on this page — it goes live shortly before liftoff.
Who is launching Atlas V 421 | SBIRS GEO-5?
Atlas V 421 | SBIRS GEO-5 is an United Launch Alliance mission flying on a Atlas V 421.
Where does Atlas V 421 | SBIRS GEO-5 launch from?
It lifts off from Space Launch Complex 41, Cape Canaveral SFS, FL, USA.