Everything is progressing toward the ULA Delta IV Heavy launch carrying the NROL-71 mission for the National Reconnaissance Office.

The mission is set to lift off on a Delta IV Heavy rocket on Friday, Dec. 7 from Space Launch Complex-6 at Vandenberg Air Force Base in California.

The launch time is 8:19 p.m. PT.

Launch Broadcast

Live broadcast coverage of launch will begin at 7:59 p.m. PT on Dec. 7.

Live launch updates and webcast available at: www.ulalaunch.com


The Delta IV rocket

United Launch Alliance’s Delta IV rocket has served the nation’s high-priority U.S. Air Force and National Reconnaissance Office space programs with distinction since entering service in 2002.

The vehicle also launched NASA’s Orion capsule on its first orbital test flight and sent the Parker Solar Probe on its journey to become the fastest robot in history while surfing through the sun’s atmosphere.

Having flown 37 missions in a variety of configurations ranging from medium-lift to heavy-lifter, the Delta IV continues the legacy of the Delta rocket family that dates to 1960.

NROL-71 will launch aboard a Delta IV Heavy rocket features three hydrogen-fueled common booster coresand a Delta Cryogenic Second Stage. The payload is protected during atmospheric ascent by a composite payload fairing.


Height: 233 feet
Weight: 1.6 million pounds
Thrust: 2.1 million pounds
Fuel: L65,000 gallons of liquid hydrogen and liquid oxygen

Heather McFarland Mowad ,ULA Communications