Delta 4 – Page 9 – Spaceflight Now

Live coverage: Delta 4 launches from California with spy satellite

January 10, 2018 Stephen Clark

United Launch Alliance kicked off its 2018 launch campaign with a Delta 4 rocket flight at 2:11 p.m. PST (5:11 p.m. EST; 2211 GMT) Friday from Vandenberg Air Force Base in California. Gusty winds forced officials to call off a launch attempt Wednesday, and technical problems halted a countdown Thursday multiple times. The Delta 4 launched with a top secret spy satellite for the National Reconnaissance Office.

Delta 4 rocket, clandestine spy satellite ready for liftoff from California

January 9, 2018 Stephen Clark

Technicians are putting the final touches on a United Launch Alliance Delta 4 rocket set for liftoff Thursday from Vandenberg Air Force Base, a military base on California’s Central Coast, with a top secret spy satellite for the National Reconnaissance Office.

Classified payload hoisted atop Delta 4 rocket at Vandenberg

December 29, 2017 Stephen Clark

A clandestine satellite owned by the National Reconnaissance Office has been raised atop its United Launch Alliance Delta 4 rocket at Vandenberg Air Force Base, California, for liftoff Jan. 10.

Delta 4 launch from California slips to January

December 6, 2017 Stephen Clark

The launch of a top secret National Reconnaissance Office spy satellite from Vandenberg Air Force Base in California has been pushed back from Dec. 13 until no earlier than Jan. 10 to complete software validation on the Delta 4 rocket’s new avionics system, United Launch Alliance announced Wednesday.

United Launch Alliance wins three U.S. government satellite launches

April 2, 2017 Justin Ray

The most powerful variants of the Atlas 5 and Delta 4 rockets have been purchased by the Air Force to launch intelligence-gathering spacecraft for the U.S. government, and NASA has bought an Atlas 5 to deploy a critical polar-orbiting weather satellite.

Photos: Additional shots of successful Delta 4 rocket launch

March 19, 2017 Justin Ray

The 377th Delta rocket begins its journey to space carrying a military communications satellite funded by Canada, Denmark, the Netherlands, Luxembourg and New Zealand in a deal that gives the allies access to the U.S. military’s worldwide Wideband Global SATCOM system.

Photos: Launch boosts satellite for U.S. allies

March 19, 2017 Justin Ray

The United Launch Alliance Delta 4 Medium+ (5,4) rocket lifted off at 8:18 p.m. EDT (0018 GMT) from Cape Canaveral in service to the U.S. military’s Wideband Global SATCOM communications satellite constellation.

Photos: Delta 4 powers from pad with international satellite

March 19, 2017 Justin Ray

Launching the Wideband Global SATCOM 9 satellite purchased by allied nations in collaboration with the U.S. military’s worldwide communications network, a United Launch Alliance Delta 4 rocket thundered away from Cape Canaveral at 8:18 p.m. EDT (0018 GMT).

Internationally-backed military satellite successfully launched atop Delta 4 rocket

March 19, 2017 Justin Ray

With an international flair for collaboration, a military communications satellite jointly purchased by five allies was rocketed in space Saturday to further expand the U.S.-operated network that serves battlefield forces anywhere on Earth.

Video: Liftoff of Delta 4 rocket and WGS 9 satellite

March 19, 2017 Justin Ray

The United Launch Alliance Delta 4 rocket, standing 217 feet tall and weighing 900,000 pounds, unleashes 1.8 million pounds of thrust from its main engine and four side-mounted boosters at 8:18 p.m. EDT Saturday (0018 GMT Sunday) to launch the ninth Wideband Global SATCOM satellite for U.S. military and allied communications.