Updated launch vehicle variant.
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NROL-88
Vulcan VC4S
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Source record updated . This is a source update, not a confirmed launch time.
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Adding launch
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Target time, not a confirmed liftoff.
Mission
Classified payload for the US National Reconnaissance Office
- Launch vehicle
- Vulcan VC4S
- Mission type
- Government/Top Secret
- Destination orbit
- Unknown
- Launch pad
- Space Launch Complex 41
- Provider
- United Launch Alliance
The vehicle
Published configuration and flight history.

Vulcan VC4S
Vulcan Centaur is a two-stage-to-orbit, heavy-lift launch vehicle under development by United Launch Alliance (ULA) since 2014. It is principally designed to meet launch demands for the U.S. government's National Security Space Launch (NSSL) program for use by the United States Space Force and U.S. intelligence agencies for national security satellite launches. It will replace both of ULA's existing launchers (Atlas V and Delta IV Heavy) in this role, as these launchers are retiring.
- Recorded launches
- 1
- First flight
- 2025-08-13
Launch window
A calendar entry will be available when a date is confirmed.
A precise launch window has not been published.
Launch site & orbit
Cape Canaveral SFS, FL, USA
Launch site
Explore the launch pad on Earth using its published coordinates.
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Coverage & sources
Links supplied by the mission data provider.
Coverage and times may change.
Mission coverage
No viewing link has been published yet.
Further reading
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