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April 26 Live Broadcast: Delta IV Heavy NROL-82

Watch live as ULA's Delta IV Heavy rocket lifts off from Vandenberg Air Force Base, CA with the NROL-82 mission for the National Reconnaissance Office (NRO)....

Delta IV Heavy NROL-82 United Launch Alliance (ULA) Rocket Launch

A United Launch Alliance (ULA) Delta IV Heavy rocket will launch the NROL-82 mission for the National Reconnaissance Office (NRO). Liftoff will occur from Space Launch Complex-6 at Vandenberg Air Force Base, California.


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Destination: Sun-Synchronous Orbit
Mission: Government/Top Secret

Sun-Synchronous Orbit Space Launch Complex 6 Vandenberg SFB, CA, USA Probability: 40%

Classified payload for the U.S. National Reconnaissance Office.


Geoff Barrett is an independent graphic artist that creates launch infographics for space flight events.


Nosu • April 26, 2021, 9:59 p.m.

Successful launch

Nosu • April 26, 2021, 7:09 p.m.

Now targeting 20:47 UTC

SwGustav • April 25, 2021, 9:49 p.m.

Weather 40% GO

Delta IV Heavy

Family: Delta
Configuration: Heavy

The Delta IV Heavy (Delta 9250H) is an expendable heavy-lift launch vehicle, the largest type of the Delta IV family, and is the world's second highest-capacity rocket in operation. It is manufactured by United Launch Alliance and was first launched in 2004.

See Delta Details
  • Stages
  • Length
    72.0 m
  • Diameter
    5.0 m
  • Fairing Diameter
  • Launch Mass
    733 T
  • Thrust
    8674 kN
  • Name
    Delta IV Heavy
  • Family
  • Variant
  • Alias
  • Full Name
    Delta IV Heavy
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
    28370 kg
  • Geostationary Transfer Orbit
    14210 kg
  • Direct Geostationary
    14500 kg
  • Sun-Synchronous Capacity

United Launch Alliance

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CEO: Tory Bruno Founded: 2006 Successes: 156 Failures: 0 Pending: 31

Agency Type: Commercial

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.


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