Delta 4 Heavy sends spy satellite to orbit in ULA’s first launch of 2021

Delta 4 Heavy sends spy satellite to orbit in ULA’s first launch of 2021

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United Launch Alliance launched NROL-82 on a Delta 4 Heavy rocket April 26 from Vandenberg Air Force Base, California.

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ULA launches long-delayed NRO mission aboard Delta 4 Heavy rocket

ULA launches long-delayed NRO mission aboard Delta 4 Heavy rocket

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A United Launch Alliance Delta 4 Heavy rocket on Dec. 10 at 8:09 p.m. Eastern launched NROL-44 from Cape Canaveral Space Force Station in Florida. 

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Atlas 5 to fly Northrop Grumman’s solid boosters in upcoming launch of NRO satellite

Atlas 5 to fly Northrop Grumman’s solid boosters in upcoming launch of NRO satellite

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While ULA builds the Atlas 5 for NROL-101 it also is working to get NROL-44 launched on a Delta 4 Heavy.

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ULA investigating cause of Delta 4 Heavy mission abort

ULA investigating cause of Delta 4 Heavy mission abort

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ULA statement: “Initial indications were with a ground system, and we are working to confirm the exact cause."

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ULA launch of NRO satellite on hold after Delta 4 Heavy hot fire abort

ULA launch of NRO satellite on hold after Delta 4 Heavy hot fire abort

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The hot fire abort of NROL-44 happened three seconds before the Delta 4 Heavy was to lift off.

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ULA to launch Delta 4 Heavy for its 12th mission, four more to go before rocket is retired

ULA to launch Delta 4 Heavy for its 12th mission, four more to go before rocket is retired

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NROL-44 is the first of the final five missions to be flown by Delta 4 Heavy between now and 2024

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For Air Force launch competition, ULA will offer Vulcan and Atlas, but not Delta

For Air Force launch competition, ULA will offer Vulcan and Atlas, but not Delta

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Bruno said ULA is confident that Vulcan will be ready to fly Category C payloads by 2023.

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Air Force awards ULA $1.18 billion contract to complete five Delta 4 Heavy NRO missions

Air Force awards ULA $1.18 billion contract to complete five Delta 4 Heavy NRO missions

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The award covers the launch operations costs for five classified NRO missions — NROL-44, NROL-82, NROL-91, NROL-68 and NROL-70.

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Last Delta 4 Medium launches GPS-3 satellite

Last Delta 4 Medium launches GPS-3 satellite

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United Launch Alliance completed the last launch of a Delta 4 Medium Aug. 22, sending a GPS-3 satellite into a medium Earth orbit for the U.S. Air Force. 

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ULA’s Delta 4 Heavy down to final five missions

ULA’s Delta 4 Heavy down to final five missions

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Gary Wentz, ULA’s vice president of government and commercial programs, said the last Delta 4 heavy mission is currently slated for the second half of 2023. 

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ULA receives contract for what could be the final Delta 4 Heavy mission

ULA receives contract for what could be the final Delta 4 Heavy mission

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The production of the third Delta 4 Heavy rocket under this contract is expected to be completed by January 2024.

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Atlas 5 and Delta 4 launch delays caused by common component in upper stage

Atlas 5 and Delta 4 launch delays caused by common component in upper stage

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The anomaly was detected during a routine mission assurance check.

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Cost of Delta 4 Heavy launches is down but the real price is a secret

Cost of Delta 4 Heavy launches is down but the real price is a secret

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Under the LVPS contract, ULA in October 2018 was awarded three NRO missions

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ULA awarded Delta 4 Heavy launch contract for NRO mission

ULA awarded Delta 4 Heavy launch contract for NRO mission

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NROL-68 is the second of three missions awarded to ULA under the Launch Vehicle Production Services contract.

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Air Force launches WGS-10 communications satellite

Air Force launches WGS-10 communications satellite

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WGS-10 was the second to last mission for the Delta 4 medium.

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