Vulcan VC4S

Active

United Launch Alliance (ULA)

Aug. 13, 2025

Description

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.

Specifications
  • Length
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  • Diameter
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  • Fairing Diameter
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  • Launch Mass
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  • Thrust
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Family
  • Name
    Vulcan VC4S
  • Family
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  • Variant
    VC4S
  • Alias
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  • Full Name
    Vulcan VC4S
Payload Capacity
  • Launch Cost
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  • Low Earth Orbit
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  • Geostationary Transfer Orbit
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  • Direct Geostationary
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  • Sun-Synchronous Capacity
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United Launch Alliance

Commercial
CEO: Mark Peller
ULA 2006

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.

Upcoming Spaceflights


Vulcan VC4S | NROL-88

United Launch Alliance | United States of America
Cape Canaveral SFS, FL, USA
Status: To Be Determined
Mission:

Classified payload for the US National Reconnaissance Office

Unknown
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Vulcan VC4S | USSF-87

United Launch Alliance | United States of America
Cape Canaveral SFS, FL, USA
Status: Launch Successful
Mission:

USSF-87 will launch two identical Geosynchronous Space Situational Awareness Program (GSSAP) satellites GSSAP-7 and GSSAP-8 directly to a near-geosynchronous orbit approximately 36,000 km above the equator. Data from the GSSAP will uniquely contribute to timely and accurate orbital predictions, further enabling space flight safety including satellite collision avoidance.

Geostationary Orbit
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Vulcan VC4S | USSF-106

United Launch Alliance | United States of America
Cape Canaveral SFS, FL, USA
Status: Launch Successful
Mission:

USSF-106 is a mission for the United States Space Force. The launch will deploy various payloads directly into geosynchronous orbit, including the NTS-3 (Navigation Technology Satellite 3), a demonstration navigation satellite testing a new digital signal generator that can be reprogrammed on-orbit to broadcast new signals, improve performance by avoiding and defeating interference, and adding signatures for detecting spoofing attacks.

Geosynchronous Orbit
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Kinetica 2
Success
18 hours, 33 minutes ago
SpaceSail Polar Group #17
Launch Area 140 - Jiuquan Satellite Launch Center, People's Republic of China

18 Low Earth Orbit communication satellites with Ku, Q and V band payloads for the G60 constellation operated by Shanghai Spacesail Technologies with…


Electron
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The Sea God Surveys (iQPS Launch 9)
Rocket Lab Launch Complex 1A - Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand

Synthetic aperture radar Earth observation satellite for Japanese Earth imaging company iQPS.


Falcon 9
Success
3 days, 14 hours ago
Starlink Group 15-18
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


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Success
4 days ago
IRNSS-1L (NVS-03)
Satish Dhawan Space Centre Second Launch Pad - Satish Dhawan Space Centre, India

This is a replacement satellite for the Indian Regional Navigation Satellite System. The constellation will provide India with an alternative to GPS …


Falcon 9
Success
1 week ago
Starlink Group 15-16
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 27 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.